POWER SUPPLY SYSTEMS SPDs for low-voltage installations and equipment

SPDs for low-voltage installations and equipment 13

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Easy Choice 16 Combined SPDs Type 1 Combined 25 49 59 65 113 139 15

ÜS-Schutz Combined Easy Choice L1 L2 L3 N PE SPD (Surge arrester) SPD (Surge arrester) SPD (Surge arrester) DEHNflex Socket Outlet Cable length 5 m 1 x DSA 230 LA Part No. 924 370 for cable ducts 1 x DFL M 255 Part No. 924 396 for flush-mounted systems 1 x STC 230 Part No. 924 350 for existing socket outlets 16 A 125 A 1 125 A 1 1 x DG M TNS 275 Part No. 952 400 SPD (Surge arrester) Cable length 15 m SPD Type 1 (Lightning current arrester) 315 A 1 L1 L1' L2 L2' L3 L3' DEHNbloc DB 3 255 H N /PEN N/PEN L N /PEN D SI! L' N/PEN L DEHNbloc Maxi DEHNbloc Maxi DEHNbloc Maxi DBM 1 255 L DBM 1 255 L DBM 1 255 L N /PEN D SI! L' N/PEN L N /PEN D SI! indication of interference or with remote signalling contact: 1 x DG M TNS 275 FM Part No. 952 405 SPD (Surge arrester) SPD Type 1 (Coordinated lightning current arrester) 315 A 1 DEHNbloc Maxi Coordinated to DEHNguard without additional cable length. L' N/PEN DEHNventil Directly coordinated to Red/Line SPDs and 3 without additional cable length. For series connection please see also page 19 SPD Type 1 (Combined lightning current and surge arrester) 315 A 1 Main Distribution Board Subdistribution Board EBB 1 x DB 3 255 H Part No. 900 120 alt. 3 x DB 1 255 H Part No. 900 222 1 x MVS 1 8 Part No. 900 611 3 x DBM 1 255 L Part No. 900 026 1 x MVS 1 8 Part No. 900 611 alt. 3 x DBM 1 255 Part No. 900 025 1 x MVS 1 8 Part No. 900 611 1 x DV M TNC 255 Part No. 951 300 alt. 1 x DV M TNC 255 FM Part No. 951 305 also available as 1 x DV M TNS 255 Part No. 951 400 alt. 1 x DV M TNS 255 FM Part No. 951 405 1) Only required, if a fuse of the same or a lower nominal value is not already provided in the upstream power supply. TN-Systems: Example: Office Building Separation of the PEN in the main distribution board 16

0 1 Combined Easy Choice L1 L2 L3 N PE SPD (Surge arrester) SPD (Surge arrester) SPD (Surge arrester) Überspannungsschutz S-PROTECTOR 230V~ Defect SFL-Protector Socket Outlet Cable length 5 m 1 x NSM PRO EW Part No. 924 342 1 x SF PRO Part No. 909 820 1 x S PRO Part No. 909 821 1 x SFL PRO Part No. 912 260 16 A 125 A 1 125 A 1 1 x DG M TNC 275 Part No. 952 300 SPD (Surge arrester) Cable length 15 m SPD Type 1 (Lightning current arrester) L1 L1' L2 L2' L3 L3' DEHNbloc DB 3 255 H N /PEN N/PEN L N /PEN D SI! L' DEHNbloc Maxi DEHNbloc Maxi DEHNbloc Maxi DBM 1 255 L DBM 1 255 L DBM 1 255 L N/PEN L N /PEN DEHNbloc Maxi Coordinated to DEHNguard without additional cable length. SPD Type 1 (Coordinated lightning current arrester) D SI! L' N/PEN L N /PEN D SI! L' N/PEN indication of interference or with remote signalling contact: 1 x DG M TNC 275 FM Part No. 952 305 SPD (Surge arrester) 315 A 1 315 A 1 315 A 1 DEHNventil Directly coordinated to Red/Line SPDs and 3 without additional cable length. For series connection please see also page 19 SPD Type 1 (Combined lightning current and surge arrester) Main Distribution Board Subdistribution Board EBB 1 x DB 3 255 H Part No. 900 120 alt. 3 x DB 1 255 H Part No. 900 222 1 x MVS 1 8 Part No. 900 611 3 x DBM 1 255 L Part No. 900 026 1 x MVS 1 8 Part No. 900 611 alt. 3 x DBM 1 255 Part No. 900 025 1 x MVS 1 8 Part No. 900 611 1 x DV M TNC 255 Part No. 951 300 alt. 1 x DV M TNC 255 FM Part No. 951 305 1) Only required, if a fuse of the same or a lower nominal value is not already provided in the upstream power supply. TN-Systems: Example: Office Building Separation of the PEN in the subdistribution board 17

Easy Choice L1 L2 L3 N PE Cable length 5 m 3 A 1 SPD (Surge arrester) / IN function DEHN SPD SPS PRO OUT / FM PLC 25 A also permissible without NF 10 10 A 1 SPD (Surge arrester) L L N N IN NETZFILTER OUT L' L' N' N' N N L1 L1 L2 L3 DEHNrail 230/3N FML DR 230 3N FML 1 x DR M 2P 255 FM Part No. 953 205 1 x SPS PRO Part No. 912 253 1 x NF 10 Part No. 912 254 1 x DR 230 3N FML Part No. 901 130 PLC 16 A 1 SPD (Surge arrester) L2 L3 electronic equipment Switchgear/Machine 16 A 125 A 1 VNH V NH 00 280 DEHNbloc NH DB NH00 255 VNH V NH 00 280 DEHNbloc NH DB NH00 255 VNH V NH 00 280 3 x V NH00 280 Part No. 900 261 315 A 1 SPD (Surge arrester) Cable length 15 m SPD Type 1 (Lightning current arrester) DEHNbloc NH DB NH00 255 2 315 A 1 14 11 12 DEHNsignal DSI DBM 1 2 3 L L' DEHNbloc Maxi DBM 1 255 L N /PEN D SI! N/PEN 1 x DG M TNC 275 Part No. 952 300 or with remote signalling contact: 1 x DG M TNC 275 FM Part No. 952 305 L SPD (Surge arrester) DEHNbloc Maxi Coordinated to DEHNguard without additional cable length. SPD Type 1 (Coordinated lightning current arrester) L' DEHNbloc Maxi DBM 1 255 L N /PEN D SI! N/PEN L L' DEHNbloc Maxi DBM 1 255 L N /PEN D SI! N/PEN indication of interference 315 A 1 DEHNventil Directly coordinated to Red/Line SPDs and 3 without additional cable length. For series connection please see also page 19 SPD Type 1 (Combined lightning current and surge arrester) indication of interference Main Distribution Board Subdistribution Board EBB 3 x DB NH00 255 H Part No. 900 273 alt. 3 x DB 1 255 H Part No. 900 222 1 x MVS 1 8 Part No. 900 611 3 x DBM 1 255 L Part No. 900 026 1 x MVS 1 8 Part No. 900 611 alt. 3 x DBM 1 255 S Part No. 900 220 1 x DV M TNC 255 FM Part No. 951 305 alt. 1 x DV M TNC 255 Part No. 951 300 1) Only required, if a fuse of the same or a lower nominal value is not already provided in the upstream power supply. 2) Without separate backup fuse in case of earth-fault- and short-circuit-proof installation. TN-Systems: Example: Industry Separation of the PEN in the subdistribution board 18

DV ZP TNC 255 50 Combined Easy Choice L1 L2 L3 N PE SPD (Surge arrester) SPD (Surge arrester) 16 A KW h PEN L1 L2 L3 315 A gl/gg 1 3 DEHNrail DR MOD 255 2 4 1 x DR M 2P 255 Part No. 953 200 SPD Type 1 (Combined lightning current and surge arrester) DEHNventil ZP PEN heating EBB Heating Control Note: As an alternative, surge arresters can also be used (e.g. DG M TNC 275 Part No. 952 300), if no - lightning protection system, - electrical power supply by the service entry mast, - antenna on the roof is available. 1 x DV ZP TNC 255 Part No. 900 390 also available for 5-wire systems 1 x DV ZP TT 255 Part No. 900 391 S-PROTECTOR 230V~ Defect 1 x S PRO Part No. 909 821 1 x SF PRO Part No. 909 820 1 x SFL PRO Part No. 912 260 Socket Outlet Centrail Main and Subdistribution Board PEN L1 L2 L3 TN-Systems: Example: One-family house L1 L2 L3 N PE SPD (Surge arrester) SPD (Surge arrester) 1 2 DEHNrail DR MOD 255 3 4 heating Heating Control DEHNflex Socket Outlet 1 x DR M 2P 255 Part No. 953 200 1 x DFL M 255 Part No. 924 396 16 A 125 A SPD Type 1 (Combined lightning current and surge arrester) L1 L1 L2 L2 DEHNventil DV MOD 255 DEHNventil DV MOD 255 L3 L3 N N DEHNventil DV MOD 255 DEHNventil DV MOD NPE Note: As an alternative, surge arresters can also be used (e.g. DG M TT 275 Part No. 952 310), if no - lightning protection system, - electrical power supply by the service entry mast, - antenna on the roof is available. 1 x DV M TT 255 Part No. 951 310 Centrail Main and Subdistribution Board PE EBB TT-Systems: Example: One-family house 19

ÜS-Schutz Durchgangsklemme Combined Easy Choice L1 L2 L3 N PE SPD (Surge arrester) SPD (Surge arrester) SPD (Surge arrester) DEHNflex Socket Outlet Cable length 5 m 1 x DSA 230 LA Part No. 924 370 for cable ducts 1 x DFL M 255 Part No. 924 396 for flush-mounted systems 1 x STC 230 Part No. 924 350 for existing socket outlets 16 A RCD 125 A 1 125 A 1 EBB 1 x DG M TT 275 Part No. 952 310 315 A 1 L1 L1' L2 L2' L3 L3' DEHNbloc DB 3 255 H SPD (Surge arrester) Cable length 15 m SPD Type 1 (Lightning current arrester) N /PEN N/PEN DK 35 DEHNgap B/n DGP BN 255 1 x DB 3 255 H Part No. 900 120 alt. 3 x DB 1 255 H Part No. 900 222 1 x DGP BN 255 Part No. 900 132 1 x DK 35 Part No. 900 699 1 x MVS 1 4 Part No. 900 610 315 A 1 L N /PEN D SI! L' N/PEN L DEHNbloc Maxi DEHNbloc Maxi DEHNbloc Maxi DBM 1 255 L DBM 1 255 L DBM 1 255 L N /PEN D SI! L' N/PEN L N /PEN D SI! L' N/PEN N DEHNgap Maxi DGP M255 3 x DBM 1 255 L Part No. 900 026 alt. 3 x DBM 1 255 Part No. 900 025 1 x DGPM 255 Part No. 900 055 1 x MVS 1 8 Part No. 900 611 N indication of interference or with remote signalling contact: 1 x DG M TT 275 FM Part No. 952 315 SPD (Surge arrester) DEHNbloc Maxi Coordinated to DEHNguard without additional cable length. SPD Type 1 (Coordinated lightning current arrester) D SI! N' 315 A 1 DEHNventil Directly coordinated to Red/Line SPDs and 3 without additional cable length. For series connection please see also page 19 SPD Type 1 (Combined lightning current and surge arrester) 1 x DV M TT 255 FM Part No. 951 315 alt. 1 x DV M TT 255 Part No. 951 310 indication of interference Main Distribution Board Subdistribution Board 1) Only required, if a fuse of the same or a lower nominal value is not already provided in the upstream power supply. TT-Systems: Example: Office Building 20

/ IN function DEHN SPD SPS PRO OUT / FM Combined Easy Choice L1 L2 L3 N PE SPD (Surge arrester) SPD (Surge arrester) SPD (Surge arrester) 3 A 1 PLC 25 A also permissible without NF 10 10 A 1 L L N N IN NETZFILTER OUT L' L' N' N' PLC 16 A 1 N N L1 L1 L2 L3 DEHNrail 230/3N FML DR 230 3N FML L2 L3 electronic equipment Switchgear/Machine Cable length 5 m 1 x SPS PRO Part No. 912 253 1 x DR M 2P 255 FM Part No. 953 205 1 x NF 10 Part No. 912 254 1 x DR 230 3N FML Part No. 901 130 16 A RCD 125 A 1 125 A 1 1 x DG M TT 275 Part No. 952 310 315 A 1 SPD (Surge arrester) Cable length 15 m SPD Type 1 (Lightning current arrester) DEHNbloc NH DB NH00 255 DEHNbloc NH DB NH00 255 DEHNbloc NH DB NH00 255 DEHNbloc NH DB NH00 255 315 A 1 14 11 12 DEHNsignal DSI DV 1 2 3 4 L N /PEN D SI L' N/PEN L DEHNbloc Maxi DEHNbloc Maxi DEHNbloc Maxi DBM 1 255 L DBM 1 255 L DBM 1 255 L N /PEN D SI L' N/PEN L N /PEN D SI L' N/PEN indication of interference or with remote signalling contact: 1 x DG M TT 275 FM Part No. 952 315 SPD (Surge arrester) DEHNbloc Maxi Coordinated to DEHNguard without additional cable length. SPD Type 1 (Coordinated lightning current arrester) N DEHNgap Maxi DGP M255 N indication of interference D SI N' 315 A 1 DEHNventil Directly coordinated to Red/Line SPDs and 3 without additional cable length. For series connection please see also page 19 SPD Type 1 (Combined lightning current and surge arrester) Main Distribution Board Subdistribution Board!!!! EBB 3 x DB NH00 255 H Part No. 900 273 1 x DGP B NH00 N 255 Part No. 900 269 3 x DBM 1 255 L Part No. 900 026 alt. 3 x DBM 1 255 Part No. 900 025 1 x DGPM 255 Part No. 900 055 1 x MVS 1 8 Part No. 900 611 indication of interference 1 x DV M TT 255 FM Part No. 951 315 alt. 1 x DV M TT 255 Part No. 951 310 1) Only required, if a fuse of the same or a lower nominal value is not already provided in the upstream power supply. TT-Systems: Example: Industry 21

Information about Standards Classification of SPDs in power supply systems according to international, European and national standardisation. Since October 2004, the European harmonised product standard EN 61643-11 has applied in all CENELEC member states to classification of SPDs in power supply systems as well as to their basic requirements and description of test certifications. EN 61643-11:2002 Surge protective devices connected to low-voltage power distribution systems Part 11: performance requirements and testing methods The European harmonised standard was published in Germany under DIN EN 61643-11 / VDE 0675-6-11:2002 with publication date 12/2002. VDE classified the German publication as VDE 0675-6, Part 6-11. DIN EN 61643-11 / VDE 0675-6-11:2002 Low-voltage surge protective devices Part 11: Surge protective devices connected to low-voltage power systems; Requirements and tests (IEC 61643-1:1998 + Corrigendum:1998, modified); German version EN 61643-11:2002 Internationally, IEC 61643-1 specifies the classification of SPDs as well as their testing methods. IEC 61643-1:2005 Low-voltage surge protective devices Part 1: Surge protective devices connected to low-voltage power distribution systems Requirements and tests With the above mentioned product standards, the SPD classifications Ableiter der Anforderungsklassen B, C, D according to E DIN VDE 0675-6:1989-11 used in Germany, became invalid after the transition period in October 2004. For comparing the current SPD classifications with the previous classifications for existing installations, Table 1 shows the corresponding definitions for surge protective devices both according to the previous national standard E DIN VDE 0675-6, -6/A1 and 6/A2 and the current EN and IEC standards. Type / Description Standard E DIN VDE 0675-6 with A1, A2 (already withdrawn) IEC 61643-1:2005 DIN EN 61643-11:2002 Lightning current arrester Ableiter der Anforderungsklasse B SPD Class I SPD Type 1 Combined lightning current and surge arrester Surge arrester for Ableiter der Anforderungsklasse C SPD Class II SPD distribution boards, subdistribution boards, fixed installations Fixed installations for Ableiter der Anforderungsklasse D SPD Class III SPD socket outlets / terminal devices Table 1: New equivalents for previous classifications 22

Special Applications Surge protective devices for high system voltages No matter how power supply systems are designed, the Red/Line family provides always the right surge protective device. If you cannot find the right combination of devices in our SPD catalogue to come up to your requirements, please do not hesitate to contact us.we will certainly have an appropriate proposal for your application. If, nevertheless, your requirements cannot be fulfilled in the first instance, DEHN + SÖHNE provides experienced specialists to develop a reliable and cost-optimised protection for your purposes. Customised protection against especially high lightning current loads With Netz-AK, many customised protection solutions were developed for locations threatened by lightning at maximum requirements on their availability. With these SPD combinations, direct lightning currents of considerably more than 100 ka can be safely discharged. Apart from choosing the right protection, also an impulse-current-proof installation is required for protecting your system against these extreme loads. Furthermore, we offer services in our DEHN test laboratory, which provides one of the most powerful lightning current test laboratories worldwide. Voltage-controlled short-circuiters The voltage-controlled short-circuiters of the VCSD series allow to connect parts of the installation, which are electrically isolated under operational conditions, according to voltage. This switching function is assumed by the voltage-controlled short-circuiters both at surges (e.g. lightning strokes) and stationary overvoltages, like at earth faults arising in 50 Hz systems. Due to their adjustable sparkover voltage, the devices of the VCSD series can also be used as a voltage-limiting device for high-voltage interferences at insulated pipeline sections. Spark gaps for railway applications With SDS, specific spark gaps were developed for many types of railway applications. The lightning-resistant spark gaps separate functionally insulated parts of the installation from each other, e.g. isolated track sections. In case of earth faults or short circuits at the overhead contact line, SDS spark gaps stablish a safe equipotential bonding by heavy-currentproof welding of the electrodes. SDS spark gaps can be used in different voltage levels for most different applications of electrical ac and dc powered railway systems. Measuring system for acquiring and analysing the power quality With DEHNrecord NSQ, DEHN + SÖHNE has developed an especially compact measuring system for acquisition and analysis as well as on-site indication of power quality. Both easy installation and the extremely compact design and the traffic-light sequence for quick evaluation of the result, characterise the DEHNrecord NSQ measuring device. No matter for how long the measuring period is selected, DEHNrecord NSQ controls the power quality of your system and informs you quickly if voltage, frequency, harmonics, etc. are within the limit values. The PC software NSQ Monitor allows for easy parametrising and evaluation of devices. 23

Discontinued Products! The discontinued products are only available as long as the stock lasts Discontinued Products Alternatives Part No. Type Part No. Type 900 100 DP 255 900 025 DBM 1 255 900 101 DP 440 900 159 DB 1 440 900 104 DPM 255 900 025 DBM 1 255 900 110 DB 3 255 900 120 DB 3 255 H 900 111 DB 1 255 900 222 DB 1 255 H 900 130 DGP B 255 900 132 DGP BN 255 900 260 DB NH00 255 900 273 DB NH00 255 H 900 265 V NH1 3 280 900 270 V NH1 280 900 266 VA NH1 3 280 900 271 VA NH1 280 900 601 DG 600 900 651 DG T 600 900 602 DG 385 900 641 DG T 385 900 603 DG 150 900 653 DG T 150 900 604 DG 75 900 654 DG T 75 900 605 DG 320 900 652 DG T 320 900 607 DG 440 900 655 DG T 440 900 621 DG 600 FM 900 681 DG T 600 FM 900 622 DG 385 FM 900 691 DG T 385 FM 900 623 DG 150 FM 900 683 DG T 150 FM 900 624 DG 75 FM 900 684 DG T 75 FM 900 625 DG 320 FM 900 682 DG T 320 FM 900 627 DG 440 FM 900 685 DG T 440 FM 901 000 VAV 1000 950 102 DG 1000 902 375 VA NH00 280 3 IG FM 902 376 VA NH00 280 4 IG FM 902 385 VA NH00 280 3 IG 902 386 VA NH00 280 4 IG Mains Connection Box 900 964 NAK 63A 4 900 374 DV TNS 255 900 965 NAK 63A 3 900 373 DV TNC 255 900 966 NAK 35A 4 900 374 DV TNS 255 900 967 NAK 35A 3+1 900 375 DV TT 255 900 968 NAK 35A 3 900 373 DV TNC 255 900 969 NAK 63A 3+1 900 375 DV TT 255 902 492 NAK TAB 3 900 390 DV ZP TNC 255 902 493 NAK TAB 3+1 900 391 DV ZP TT 255 902 494 NAK TAB 4 900 391 DV ZP TT 255 900 121 DBR 35 900 122 DBR 63 24

Arresters Type 1 COMBINED SPDs TYPE 1 SPD Type 1 according to EN 61643-11 SPD Class I according to IEC 61643-1 DEHNventil modular Multipole Modular Combined and Surge Arrester For protection of low-voltage consumer s installations against surges, even at direct lightning strokes. For use according to the lightning protection zones concept at boundaries 0 A 2. Prewired combined spark-gap-based lightning current and surge arrester, consisting of a base part and plug-in protection modules Maximum system availability due to RADAX Flow follow current limitation No tripping of 32 A gl/gg fuses up to short-circuit currents of 50 ka rms Discharge capacity up to 100 ka (10/350 μs) Allows for protection of terminal devices Operating state/fault indication by mark in the inspection window Easy exchanging of protection modules with module releasing button DEHNventil M TNC 255: Modular combined lightning current and surge arrester for TN-C systems DEHNventil M TNS 255: Modular combined lightning current and surge arrester for TN-S systems DEHNventil M TT 255: Modular combined lightning current and surge arrester for TT und TN-S systems ( 3+1 circuit) DEHNventil M TN 255: Modular combined lightning current and surge arrester for single-phase TN systems DEHNventil M TT 2P 255: Modular combined lightning current and surge arrester for single-phase TT and TN systems ( 1+1 circuit) DEHNventil M... FM: With remote signalling contact for control device (floating changeover contact) With the functional design of the new Red/Line series, the devices of the modular DEHNventil family combine safety and innovation impressively. Being an all-in-one-device they assume lightning equipotential bonding and surge protection in only one stage. Especially for use in compact electrical installations, this function is of advantage. The design of the surge arresters according to the criteria of energy coordination allows for protection of even terminal devices at short distances between DEHNventil and the consumers ( 5 m). Considering the lightning current discharge capacity of up to 100 000 A, this is a safe basis for high availability of the electrical installation to be protected. Even for expanded electrical installations, the modular DEHNventil devices provide most various application possibilities. The Red/Line surge arresters installed at the boundaries of the individual lightning protection zones are already energy-coordinated with the DEHNventil devices. The use of encapsulated creepage discharge spark gaps and the small space required by the combined lightning current and surge arresters allow for easy integration into the switchgear installation/distribution board. A special feature of the new modular Red/Line product family is the functional design. A important component is the module releasing button. It fixes the protection module reliably for connecting it safely with the base part even in case of maximum loads. If protection modules have to be exchanged, it releases the protection module without requiring tools and the module can be removed easily. By using the double terminals, which are available for all conductor connections, the surge arresters can be connected in series in a space- and cost-saving way up to nominal currents of 125 A, as preferred by IEC 60364-5-53. For connecting further DINrail mountable devices, busbars type MVS 3 8 6 and MVS 4 11 8 can be used. The right DEHNventil devices can be easily chosen according to the system configuration of the existing low-voltage consumer s installation and the type designation of the device. Using the patented RADAX Flow technology for follow current limitation and extinction achieves high availability of the electrical installation to be protected. Even at high short-circuit currents up to 50 ka rms, upcoming mains follow currents are reduced to ensure that there is a selectivity to small fuse values, i.e. upstream fuses cannot trip due to arising mains follow currents. The operating state/fault indicator of each protective circuit, which is not supplied by operating currents, informs immediately about the readiness for operation of the surge arrester. Apart from the standard visual indicator with green and red marks, types DEHNventil M... FM have a 3-pole terminal for remote signalling. As the signalling contact is a floating changeover contact, the remote signal can be used as a break or make contact, according to circuit concept. 25

Arresters Type 1 DEHNventil modular DEHNventil M TNC (FM) COMBINED SPDs TYPE 1 951 300 DV M TNC 255 951 305 DV M TNC 255 FM L1 L1 L2 L2 L3 L3 DV M TNC 255 951 300 DV M TNC 255 FM 951 305 12 11 14 PEN Basic circuit diagram DV M TNC 255 FM Dimension drawing DV M TNC 255 (FM) DV M TNC 255 (FM): Modular combined lightning current and surge arrester for TN-C systems DV M TNC 255 DV M TNC 255 FM SPD according to EN 61643-11 Type 1 Type 1 SPD according to IEC 61643-1 Class I Class I Nominal ac voltage U N 230 / 400 V 230 / 400 V 255 V 255 V Lightning impulse current (10/350 μs) [L1+L2+L3-PEN] I imp 75 ka 75 ka Lightning impulse current (10/350 μs) [L-PEN] I imp 25 ka 25 ka Nominal discharge current (8/20 μs) I n 25 / 75 ka 25 / 75 ka Voltage protection level U P 1.5 kv 1.5 kv Follow current extinguishing capability ac I fi 50 ka rms 50 ka rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns 100 ns Max. backup fuse (L) up to I K = 50 ka rms 315 A gl/gg 315 A gl/gg Max. backup fuse (L) at I K > 50 ka rms 200 A gl/gg 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg 125 A gl/gg TOV voltage U T 440 V / 5 sec. 440 V / 5 sec. Operating temperature range (parallel connection) T UP -40 C...+80 C -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C -40 C...+60 C Operating state/fault indication green / red green / red Cross-sectional area (L1, L1, L2, L2, L3, L3, PEN, 9) min. 10 mm 2 solid/flexible 10 mm 2 solid/flexible Cross-sectional area (L1, L2, L3, PEN) max. 50 mm 2 stranded/35 mm 2 flexible 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L1, L2, L3, 9) max. 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 6 mods., DIN 43880 6 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DV M TNC 255 DV M TNC 255 FM Part No. 951 300 951 305 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNventil modular 951 001 DV MOD 255 DV MOD 255 Kombi- Ableiter-Schutzmodul 951 001 Spark-Gap-Based Protection Module DV MOD 255: Spark-gap-based protection module Type DV MOD 255 255 V Lightning impulse current (10/350 μs) I imp 25 ka Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) PU Part Type pc(s) No. DV MOD 255 1 951 001 26

Arresters Type 1 951 400 DV M TNS 255 951 405 DV M TNS 255 FM COMBINED SPDs TYPE 1 DEHNventil modular DEHNventil M TNS (FM) DV M TNS 255 951 400 DV M TNS 255 FM 951 405 L1 L1 L2 L2 L3 L3 N N 12 11 14 PE Dimension drawing DV TNS 255 (FM) Basic circuit diagram DV TNS 255 FM DV M TNS 255 (FM): Modular combined lightning current and surge arrester for TN-S systems DV M TNS 255 DV M TNS 255 FM SPD according to EN 61643-11 Type 1 Type 1 SPD according to IEC 61643-1 Class I Class I Nominal ac voltage U N 230 / 400 V 230 / 400 V 255 V 255 V Lightning impulse current (10/350 μs) [L1+L2+L3+N-PE] I imp 100 ka 100 ka Lightning impulse current (10/350 μs) [L,N-PE] I imp 25 ka 25 ka Nominal discharge current (8/20 μs) I n 25 / 100 ka 25 / 100 ka Voltage protection level [L-PE] U P 1.5 kv 1.5 kv Voltage protection level [N-PE] U P 1.5 kv 1.5 kv Follow current extinguishing capability ac I fi 50 ka rms 50 ka rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns 100 ns Max. backup fuse (L) up to I K = 50 ka rms 315 A gl/gg 315 A gl/gg Max. backup fuse (L) at I K > 50 ka rms 200 A gl/gg 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg 125 A gl/gg TOV voltage [L-N] U T 440 V / 5 sec. 440 V / 5 sec. Operating temperature range (parallel connection) T UP -40 C...+80 C -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C -40 C...+60 C Operating state/fault indication green / red green / red Cross-sectional area (L1, L1, L2, L2, L3, L3, N, N, PE, 9) min. 10 mm 2 solid/flexible 10 mm 2 solid/flexible Cross-sectional area (L1, L2, L3, N, PE) max. 50 mm 2 stranded/35 mm 2 flexible 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L1, L2, L3, N, 9) max. 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 8 mods., DIN 43880 8 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DV M TNS 255 DV M TNS 255 FM Part No. 951 400 951 405 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNventil modular 951 001 DV MOD 255 Spark-Gap-Based Protection Module DV MOD 255: Spark-gap-based protection module DV MOD 255 Kombi- TypeAbleiter-Schutzmodul 951 001 DV MOD 255 255 V Lightning impulse current (10/350 μs) I imp 25 ka Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) PU Part Type pc(s) No. DV MOD 255 1 951 001 27

Arresters Type 1 DEHNventil modular DEHNventil M TT (FM) COMBINED SPDs TYPE 1 951 310 DV M TT 255 951 315 DV M TT 255 FM L1 L1 L2 L2 L3 L3 N N DV M TT 255 951 310 DV M TT 255 FM 951 315 12 11 14 NPE PE Basic circuit diagram DV M TT 255 FM Dimension drawing DV M TT 255 (FM) DV M TT 255 (FM): Modular combined lightning current and surge arrester for TT and TN-S systems ( 3+1 circuit) DV M TT 255 DV M TT 255 FM SPD according to EN 61643-11 Type 1 Type 1 SPD according to IEC 61643-1 Class I Class I Nominal ac voltage U N 230 / 400 V 230 / 400 V 255 V 255 V Lightning impulse current (10/350 μs) [L1+L2+L3+N-PE] I imp 100 ka 100 ka Lightning impulse current (10/350 μs) [L-N] I imp 25 ka 25 ka Lightning impulse current (10/350 μs) [N-PE] I imp 100 ka 100 ka Nominal discharge current (8/20 μs) I n 25 / 100 ka 25 / 100 ka Voltage protection level [L-N] U P 1.5 kv 1.5 kv Voltage protection level [N-PE] U P 1.5 kv 1.5 kv Follow current extinguishing capability [L-N] ac I fi 50 ka rms 50 ka rms Follow current extinguishing capability [N-PE] ac I fi 100 A rms 100 A rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns 100 ns Max. backup fuse (L) up to I K = 50 ka rms 315 A gl/gg 315 A gl/gg Max. backup fuse (L) at I K > 50 ka rms 200 A gl/gg 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg 125 A gl/gg TOV voltage [L-N] U T 440 V / 5 sec. 440 V / 5 sec. TOV voltage [N-PE] U T 1200 V / 200 ms 1200 V / 200 ms Operating temperature range (parallel connection) T UP -40 C...+80 C -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C -40 C...+60 C Operating state/fault indication green / red green / red Cross-sectional area (L1, L1, L2, L2, L3, L3, N, N, PE, 9) min. 10 mm 2 solid/flexible 10 mm 2 solid/flexible Cross-sectional area (L1, L2, L3, N, PE) max. 50 mm 2 stranded/35 mm 2 flexible 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L1, L2, L3, N, 9) max. 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 8 mods., DIN 43880 8 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DV M TT 255 DV M TT 255 FM Part No. 951 310 951 315 Packing unit 1 pc(s) 1 pc(s) 951 001 DV MOD 255 Spark-Gap-Based Protection Module DV MOD 255: Spark-gap-based protection module Type DV MOD 255 255 V Lightning impulse current (10/350 μs) I imp 25 ka Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) PU Part Type pc(s) No. DV MOD 255 1 951 001 951 050 DV MOD NPE 50 951 100 DV MOD NPE 100 DV MOD 255 Kombi- Ableiter-Schutzmodul 951 001 DV MOD NPE 50 Kombi- Ableiter-Schutzmodul N-PE 50 ka 951 050 DV MOD NPE 100 Kombi- Ableiter-Schutzmodul N-PE 100 ka 951 100 N-PE Spark-Gap-Based Protection Module DV MOD NPE 50: 50 ka N-PE Spark-gap-based protection module Type DV MOD NPE 100 255 V Lightning impulse current (10/350 μs) I imp 100 ka PU Part Type pc(s) No. DV MOD NPE 100 1 951 100 28

Arresters Type 1 951 200 DV M TN 255 951 205 DV M TN 255 FM COMBINED SPDs TYPE 1 DEHNventil modular DEHNventil M TN (FM) DV M TN 255 951 200 DV M TN 255 FM 951 205 L L N N 12 11 14 PE Dimension drawing DV M TN 255 (FM) Basic circuit diagram DV M TN 255 FM DV M TN 255 (FM): Modular combined lightning current and surge arrester for single-phase TN systems DV M TN 255 DV M TN 255 FM SPD according to EN 61643-11 Type 1 Type 1 SPD according to IEC 61643-1 Class I Class I Nominal ac voltage U N 230 V 230 V 255 V 255 V Lightning impulse current (10/350 μs) [L+N-PE] 50 ka 50 ka Lightning impulse current (10/350 μs) [L,N-PE] I imp 25 ka 25 ka Nominal discharge current (8/20 μs) I n 25 / 50 ka 25 / 50 ka Voltage protection level [L-PE] U P 1.5 kv 1.5 kv Voltage protection level [N-PE] U P 1.5 kv 1.5 kv Follow current extinguishing capability ac I fi 50 ka rms 50 ka rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns 100 ns Max. backup fuse (L) up to I K = 50 ka rms 315 A gl/gg 315 A gl/gg Max. backup fuse (L) at I K > 50 ka rms 200 A gl/gg 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg 125 A gl/gg TOV voltage [L-N] U T 440 V / 5 sec. 440 V / 5 sec. Operating temperature range (parallel connection) T UP -40 C...+80 C -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C -40 C...+60 C Operating state/fault indication green / red green / red Cross-sectional area (L, L, N, N, PE, 9) min. 10 mm 2 solid/flexible 10 mm 2 solid/flexible Cross-sectional area (L, N, PE) max. 50 mm 2 stranded/35 mm 2 flexible 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L, N, 9) max. 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 4 mods., DIN 43880 4 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DV M TN 255 DV M TN 255 FM Part No. 951 200 951 205 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNventil modular 951 001 DV MOD 255 Spark-Gap-Based Protection Module DV MOD 255: Spark-gap-based protection module DV MOD 255 Kombi- TypeAbleiter-Schutzmodul 951 001 DV MOD 255 255 V Lightning impulse current (10/350 μs) I imp 25 ka Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) PU Part Type pc(s) No. DV MOD 255 1 951 001 29

Arresters Type 1 DEHNventil modular DEHNventil M TT 2P (FM) COMBINED SPDs TYPE 1 951 110 DV M TT 2P 255 951 115 DV M TT 2P 255 FM L L N N DV M TT 2P 255 951 110 DV M TT 2P 255 FM 951 115 12 11 14 NPE PE Basic circuit diagram DV M TT 2P 255 FM Dimension drawing DV M TT 2P 255 (FM) DV M TT 2P 255 (FM): Modular combined lightning current and surge arrester for single-phase TT and TN systems ( 1+1 circuit) DV M TT 2P 255 DV M TT 2P 255 FM SPD according to EN 61643-11 Type 1 Type 1 SPD according to IEC 61643-1 Class I Class I Nominal ac voltage U N 230 V 230 V 255 V 255 V Lightning impulse current (10/350 μs) [L+N-PE] 50 ka 50 ka Lightning impulse current (10/350 μs) [L-N] I imp 25 ka 25 ka Lightning impulse current (10/350 μs) [N-PE] I imp 50 ka 50 ka Nominal discharge current (8/20 μs) I n 25 / 50 ka 25 / 50 ka Voltage protection level [L-N] U P 1.5 kv 1.5 kv Voltage protection level [N-PE] U P 1.5 kv 1.5 kv Follow current extinguishing capability [L-N] ac I fi 50 ka rms 50 ka rms Follow current extinguishing capability [N-PE] ac I fi 100 A rms 100 A rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns 100 ns Max. backup fuse (L) up to I K = 50 ka rms 315 A gl/gg 315 A gl/gg Max. backup fuse (L) at I K > 50 ka rms 200 A gl/gg 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg 125 A gl/gg TOV voltage [L-N] U T 440 V / 5 sec. 440 V / 5 sec. TOV voltage [N-PE] U T 1200 V / 200 ms 1200 V / 200 ms Operating temperature range (parallel connection) T UP -40 C...+80 C -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C -40 C...+60 C Operating state/fault indication green / red green / red Cross-sectional area (L, L, N, N, PE, 9) min. 10 mm 2 solid/flexible 10 mm 2 solid/flexible Cross-sectional area (L, N, PE) max. 50 mm 2 stranded/35 mm 2 flexible 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L, N, 9) max. 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94-V-0 red thermoplastic, UL 94-V-0 Degree of protection IP 20 IP 20 Dimension 4 mods., DIN 43880 4 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DV M TT 2P 255 DV M TT 2P 255 FM Part No. 951 110 951 115 Packing unit 1 pc(s) 1 pc(s) 951 001 DV MOD 255 DV MOD 255 951 001 Spark-Gap-Based Protection Module DV MOD 255: Spark-gap-based protection module Type DV MOD 255 255 V Lightning impulse current (10/350 μs) I imp 25 ka Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) PU Part Type pc(s) No. DV MOD 255 1 951 001 951 050 DV MOD NPE 50 951 100 DV MOD NPE 100 DV MOD NPE 50 951 050 DV MOD NPE 100 951 100 N-PE Spark-Gap-Based Protection Module DV MOD NPE 50: 50 ka N-PE Spark-gap-based protection module Type DV MOD NPE 50 255 V Lightning impulse current (10/350 μs) I imp 50 ka PU Part Type pc(s) No. DV MOD NPE 50 1 951 050 30

Arresters Type 1 COMBINED SPDs TYPE 1 SPD Type 1 according to EN 61643-11 SPD Class I according to IEC 61643-1 Protection Module for DEHNventil modular High discharge capacity due to powerful creepage discharge spark gap Maximum system availability due to RADAX Flow follow current limitation With module releasing button for exchanging protection modules without tools Operating state/fault indication by green and red mark in the inspection window For protection of low-voltage consumer s installations from surges, even at direct lightning strokes. For use according to the lightning protection zones concept at boundaries 0 A 2. DV MOD 255: DV MOD NPE 50: DV MOD NPE 100: Spark-gap-based protection module 50 ka N-PE Spark-gap-based protection module 100 ka N-PE Spark-gap-based protection module The spark-gap-based protection modules of the modular DEHNventil series combine safety and innovation impressively. Apart from the encapsulated RADAX-Flow spark-gap technology, the compact protection components include the complete monitoring circuit for controlling the energy flow of the spark gap as well as the controlling device and operating state/fault indication. The module locking device ensures a safe fixing of the protection modules in the base part. The module releasing button allows to remove the protection modules easily without tools. An unintended confusing of the N-PE protection modules with the sparkgap-based module for the phase conductors is prevented by the mechanical coding of the protection module. 31

Arresters Type 1 Protection Module for DEHNventil modular Spark-Gap-Based Protection Module COMBINED SPDs TYPE 1 951 001 DV MOD 255 DV MOD 255 951 001 Basic circuit diagram DV MOD 255 Dimension drawing DV MOD 255 DV MOD 255: Spark-gap-based protection module DV MOD 255 Lightning impulse current (10/350 μs) I imp Follow current extinguishing capability [L-N] ac I fi Follow current limitation/selectivity 255 V 25 ka 50 ka rms no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Type DV MOD 255 Part No. 951 001 Packing unit 1 pc(s) N-PE Spark-Gap-Based Protection Module 951 050 DV MOD NPE 50 951 100 DV MOD NPE 100 DV MOD NPE 50 951 050 DV MOD NPE 100 951 100 NPE Basic circuit diagram DV MOD NPE... Dimension drawing DV MOD NPE... DV MOD NPE 50: 50 ka N-PE Spark-gap-based protection module DV MOD NPE 100: 100 ka N-PE Spark-gap-based protection module DV MOD NPE 50 DV MOD NPE 100 255 V 255 V Lightning impulse current (10/350 μs) I imp 50 ka 100 ka Follow current extinguishing capability [N-PE] ac I fi 100 A rms 100 A rms Type DV MOD NPE 50 DV MOD NPE 100 Part No. 951 050 951 100 Packing unit 1 pc(s) 1 pc(s) 32

Arresters Type 1 COMBINED SPDs TYPE 1 SPD Type 1 according to EN 61643-11 SPD Class I according to IEC 61643-1 DEHNventil ZP Multipole Combined and Surge Arrester for Primary Power Supply Systems For protection of low-voltage consumer s installations against surges, even at direct lightning strokes. For use according to the lightning protection zones concept at boundaries 0 A 2. The combined lightning current and surge arrester DEHNventil ZP is an SPD especially designed for busbar panels of supply meters. It can be snapped directly onto busbar systems without tools. The small installation width leaves enough space for connecting cables from the service entrance box (SEB), even if three selective main circuit breakers are installed. The operating state of the SPD is reported by a light indicator which is controlled by a button. Both with this kind of function control and due to its design as a pure spark gap based SPD, the combined lightning current and surge arrester DEHNventil ZP is free of leakage and operating currents. Using the RADAX Flow spark gap technology allows for the required selectivity on follow currents even for small-sized fuses in the SEB. Undesired interruptions of the power supply due to tripping mains fuses are thus avoided. The design of the device parameters as well as the complete concept fulfil entirely the requirements of the new German VDN Directive about use of surge protective devices in primary power supply systems. Combined lightning current and surge arrester with RADAX Flow spark gap technology Fulfils entirely the requirements of the national VDN* Directive about use upstream of supply meters Quick and easy installation by snapping onto 40 mm busbar systems Function test by pressing the according button with light indicator No tripping of fuses from 32 A gl/gg up to short-circuit currents of 25 ka rms Discharge capacity up to 100 ka (10/350 μs) Allows for protection of terminal equipment Provides maximum system availability DEHNventil ZP TNC 255: 3-pole combined lightning current and surge arrester for TN-C systems for use in primary power supply systems DEHNventil ZP TT 255: 4-pole combined lightning current and surge arrester for TT and TN-S systems for use in primary power supply systems * VDN... Verband der Netzbetreiber VDN e.v. of VDEW [Engl.: Association of German network operators] 33

Arresters Type 1 DEHNventil ZP DEHNventil ZP TNC COMBINED SPDs TYPE 1 900 390 DV ZP TNC 255 PEN DV ZP TNC 255 900 390 L1 L2 & L3 PEN Basic circuit diagram DV ZP TNC 255 Dimension drawing DV ZP TNC 255 DV ZP TNC 255: Combined lightning current and surge arrester for TN-C systems for use in primary power supply systems ( 3+0 circuit) DV ZP TNC 255 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I Nominal ac voltage U N 230 / 400 V 255 V Lightning impulse current (10/350 μs) [L1+L2+L3-PEN] I imp 75 ka Lightning impulse current (10/350 μs) [L-PEN] I imp 25 ka Nominal discharge current (8/20 μs) I n 25 / 75 ka Voltage protection level U P 1.5 kv Follow current extinguishing capability ac I fi 25 ka rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 25 ka rms (prosp.) Response time t A 100 ns Max. backup fuse up to I = 25 ka rms 315 A gl/gg Max. backup fuse at I K > 25 ka rms 200 A gl/gg TOV voltage U T 335 V / 5 sec. Operating temperature range T U -40 C...+80 C Function control button with light indicator Cross-sectional area (PEN, 9) 10-35 mm 2 flexible/50 mm 2 stranded Mounting on 40 mm busbar system Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 3 mods., DIN 43880 Certifications, Approvals VDE Type DV ZP TNC 255 Part No. 900 390 Packing unit 1 pc(s) 34

Arresters Type 1 900 391 DV ZP TT 255 COMBINED SPDs TYPE 1 DEHNventil ZP DEHNventil ZP TT DV ZP TT 255 900 391 N L1 L2 L3 & PE* PE * if PE busbar is existing Dimension drawing DV ZP TT 255 Basic circuit diagram DV ZP TT 255 DV ZP TT 255: Combined lightning current and surge arrester for TT and TN-S systems for use in primary power supply systems ( 3+1 circuit) DV ZP TT 255 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I Nominal ac voltage U N 230 / 400 V 255 V Lightning impulse current (10/350 μs) [L1+L2+L3+N-PE] I imp 100 ka Lightning impulse current (10/350 μs) [L-N] I imp 25 ka Lightning impulse current (10/350 μs) [N-PE] I imp 100 ka Nominal discharge current (8/20 μs) I n 25 / 100 ka Voltage protection level [L-N] U P 1.5 kv Voltage protection level [N-PE] U P 1.5 kv Follow current extinguishing capability [L-N] ac I fi 25 ka rms Follow current extinguishing capability [N-PE] ac I fi 100 A rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 25 ka rms (prosp.) Response time t A 100 ns Max. backup fuse up to I = 25 ka rms 315 A gl/gg Max. backup fuse at I K > 25 ka rms 200 A gl/gg TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [N-PE] U T 1200 V / 200 ms Operating temperature range T U -40 C...+80 C Function control button with light indicator Cross-sectional area (PE, 9) 10-35 mm 2 flexible/50 mm 2 stranded Mounting on 40 mm busbar system Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 3 mods., DIN 43880 Certifications, Approvals VDE Type DV ZP TT 255 Part No. 900 391 Packing unit 1 pc(s) 35

Arresters Type 1 DEHNventil TNC /... TNS /... TT /... 2P Compact Multipole Combined and Surge Arrester COMBINED SPDs TYPE 1 SPD Type 1 according to EN 61643-11 SPD Class I according to IEC 61643-1 Prewired combined spark-gap-based lightning current and surge arrester Maximum follow current limitation due to RADAX Flow technology No tripping of 32 A gl/gg fuses up to short circuit currents of 50 ka rms Discharge capacity up to 100 ka (10/350 μs) Allows for protection of terminal equipment Provides maximum system availability Replaces up to 12 components of a common application For protection of low voltage consumer s installations against surges, even at direct lightning strokes. For use according to the lightning protection zones concept at boundaries 0 A 2. DEHNventil TNC 255: DEHNventil TNS 255: DEHNventil TT 255: DEHNventil 2P TN 255: DEHNventil 2P TN 255: Combined lightning current and surge arrester for TN-C systems Combined lightning current and surge arrester for TN-S systems Combined lightning current and surge arrester for TT and TN-S systems ( 3+1 circuit) Combined lightning current and surge arrester for single-phase TN systems Combined lightning current and surge arrester for single-phase TT systems ( 1+1 circuit) The multipole combined lightning current and surge arresters of the DEHNventil TNC /... TNS /... TT product family offer an all-in-one solution, i.e. lightning equipotential bonding and surge protection in one device. Energy coordination with downstream Red/Line surge protective devices in low voltage consumer s installations is ensured without additional cable lengths or decoupling inductances. In compact electrical installations and a short distance between DEHNventil and the consumer devices ( 5 m), DEHNventil devices alone can protect the terminal equipment. Especially the small dimension of the combined lightning current and surge arresters allows for multiple possibilities for installation of switchgears/distribution boards. By using encapsulated non-exhausting creepage discharge spark gaps, no additional safety distances need to be observed. For expanded electrical installations, additional surge protective devices have to be provided in downstream distribution boards and directly upstream of the terminal equipment, according to the procedure of the lightning protection zones concept. Using the double terminals of DEHNventil devices, which are suitable for all types of conductors, allows for series connection in a space- and costsaving way, up to nominal currents of 125 A, as preferred by standard IEC 60364-5-53. For connection with further DIN rail mountable devices, busbars type MVS 3 8 6 and MVS 4 11 8 can be used. DEHNventil devices can be chosen easily according to the system configuration of the existing low voltage consumer s installation and the type designation of the devices. With the patented RADAX Flow technology, a high availability of the electrical consumer s installation to be protected is achieved for follow current limitation and follow current extinction. Even at great short circuit currents of up to 50 ka rms, arising mains follow currents are reduced considerably to ensure the selectivity to small fuse values (e.g. 32 A gl/gg), i.e. upstream fuses will not trip at arising mains follow currents. For indicating the presence of the three phase-to-phase voltages and readiness for operation of DEHNventil on site, the devices have an integrated visual operating voltage indicator for each phase conductor. Furthermore, readiness for operation of the device and present operating voltages can be signalised to a superior control system by DEHNsignal remote signalling module. Accessory Part: DEHNsignal Remote Signalling Module 36

Arresters Type 1 900 373 DV TNC 255 COMBINED SPDs TYPE 1 DEHNventil TNC /... TNS /... TT /... 2P DEHNventil TNC DV TNC 255 DEHNventil TNC, 3-pole 900 373 L1 L1 L2 L2 L3 L3 H1 H2 H3 PEN Dimension drawing DV TNC 255 Basic circuit diagram DV TNC 255 DV TNC 255: Combined lightning current and surge arrester for TN-C systems DV TNC 255 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I Nominal ac voltage U N 230 / 400 V 255 V Lightning impulse current (10/350 μs) [L1+L2+L3-PEN] I imp 75 ka Lightning impulse current (10/350 μs) [L-PEN] I imp 25 ka Nominal discharge current (8/20 μs) I n 25 / 75 ka Voltage protection level U P 1.5 kv Follow current extinguishing capability ac I fi 50 ka rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns Max. backup fuse (L) up to I K = 50 ka rms 315 A gl/gg Max. backup fuse (L) at I K > 50 ka rms 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg TOV voltage U T 335 V / 5 sec. Operating temperature range (parallel connection) T UP -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C Operation indicator green light Cross-sectional area (L1, L1, L2, L2, L3, L3, PEN, 9) min. 10 mm 2 solid/flexible Cross-sectional area (L1, L2, L3, PEN) max. 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L1, L2, L3, 9) max. 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 6 mods., DIN 43880 Approvals, Certifications KEMA, VDE Type DV TNC 255 Part No. 900 373 Packing unit 1 pc(s) Accessory Part for DEHNventil TNC /... TNS /... TT DEHNsignal DV DSI DV: Remote signalling module for multipole SPDs with 4-wire interface DSI DV (e.g. DEHNventil TNC /... TNS /... TT) single-pole SPDs with single-wire interface DSI DV in TN-S and TT systems (e.g. DEHNbloc Maxi) PU Part Type pc(s) No. DSI DV 1 910 620 910 620 DSI DV DSI DV DEHNsignal 910 620 37

Arresters Type 1 DEHNventil TNC /... TNS /... TT /... 2P DEHNventil TNS COMBINED SPDs TYPE 1 900 374 DV TNS 255 L1 L1 L2 L2 L3 L3 N N DV TNS 255 DEHNventil TNC, 4-pole 900 374 H1 H2 H3 PE Basic circuit diagram DV TNS 255 Dimension drawing DV TNS 255 DV TNS 255: Combined lightning current and surge arrester for TN-S systems DV TNS 255 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I Nominal ac voltage U N 230 / 400 V 255 V Lightning impulse current (10/350 μs) [L1+L2+L3+N-PE] I imp 100 ka Lightning impulse current (10/350 μs) [L,N-PE] I imp 25 ka Nominal discharge current (8/20 μs) I n 25 / 100 ka Voltage protection level [L-PE] U P 1.5 kv Voltage protection level [N-PE] U P 1.5 kv Follow current extinguishing capability ac I fi 50 ka rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns Max. backup fuse (L) up to I K = 50 ka rms 315 A gl/gg Max. backup fuse (L) at I K > 50 ka rms 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg TOV voltage [L-N] U T 335 V / 5 sec. Operating temperature range (parallel connection) T UP -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C Operation indicator green light Cross-sectional area (L1, L1, L2, L2, L3, L3, N, N, PE, 9) min. 10 mm 2 solid/flexible Cross-sectional area (L1, L2, L3, N, PE) max. 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L1, L2, L3, N, 9) max. 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 8 mods., DIN 43880 Approvals, Certifications KEMA, VDE Type DV TNS 255 Part No. 900 374 Packing unit 1 pc(s) Accessory Part for DEHNventil TNC /... TNS /... TT DEHNsignal DV DSI DV: Remote signalling module for 910 620 DSI DV DSI DV 910 620 multipole SPDs with 4-wire interface DSI DV (e.g. DEHNventil TNC /... TNS /... TT) single-pole SPDs with single-wire interface DSI DV in TN-S and TT systems (e.g. DEHNbloc Maxi) PU Part Type pc(s) No. DSI DV 1 910 620 38

Arresters Type 1 900 375 DV TT 255 COMBINED SPDs TYPE 1 DEHNventil TNC /... TNS /... TT /... 2P DEHNventil TT DV TT 255 DEHNventil TT, 4-pole 900 375 L1 L1 L2 L2 L3 L3 N N H1 H2 H3 NPE PE Dimension drawing DV TT 255 Basic circuit diagram DV TT 255 DV TT 255: Combined lightning current and surge arrester for TT and TN-S systems ( 3+1 circuit) DV TT 255 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Nominal ac voltage U N Lightning impulse current (10/350 μs) [L1+L2+L3+N-PE] I imp Lightning impulse current (10/350 μs) [L-N] I imp Lightning impulse current (10/350 μs) [N-PE] I imp Nominal discharge current (8/20 μs) I n Voltage protection level [L-N] U P Voltage protection level [N-PE] U P Class I 230 / 400 V 255 V 100 ka 25 ka 100 ka 25 / 100 ka 1.5 kv 1.5 kv Follow current extinguishing capability [L-N] ac I fi 50 ka rms Follow current extinguishing capability [N-PE] ac I fi 100 A rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns Max. backup fuse (L) up to I K = 50 ka rms 315 A gl/gg Max. backup fuse (L) at I K > 50 ka rms 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [N-PE] U T 1200 V / 200 ms Operating temperature range (parallel connection) T UP -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C Operation indicator green light Cross-sectional area (L1, L1, L2, L2, L3, L3, N, N, PE, 9) min. 10 mm 2 solid/flexible Cross-sectional area (L1, L2, L3, N, PE) max. 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L1, L2, L3, N, 9) max. 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 8 mods., DIN 43880 Approvals, Certifications KEMA, VDE Type DV TT 255 Part No. 900 375 Packing unit 1 pc(s) Accessory Part for DEHNventil TNC /... TNS /... TT DEHNsignal DV DSI DV: Remote signalling module for multipole SPDs with 4-wire interface DSI DV (e.g. DEHNventil TNC /... TNS /... TT) single-pole SPDs with single-wire interface DSI DV in TN-S and TT systems (e.g. DEHNbloc Maxi) PU Part Type pc(s) No. DSI DV 1 910 620 910 620 DSI DV DSI DV 910 620 39

Arresters Type 1 DEHNventil TNC /... TNS /... TT /... 2P DEHNventil 2P TN COMBINED SPDs TYPE 1 900 371 DV 2P TN 255 L L N N DV 2P TN 255 DEHNventil TN, 2-pole 900 371 H NPE PE Basic circuit diagram DV 2 P TN 255 Dimension drawing DV 2 P TN 255 DV 2 P TN 255: Combined lightning current and surge arrester for single-phase TN systems DV 2P TN 255 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I Nominal ac voltage U N 230 V 255 V Lightning impulse current (10/350 μs) [L+N-PE] I imp 50 ka Lightning impulse current (10/350 μs) [L,N-PE] I imp 25 ka Nominal discharge current (8/20 μs) I n 25 / 50 ka Voltage protection level [L-PE] U P 1.5 kv Voltage protection level [N-PE] U P 1.5 kv Follow current extinguishing capability ac I fi 50 ka rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns Max. backup fuse (L) up to I K = 50 ka rms 315 A gl/gg Max. backup fuse (L) at I K > 50 ka rms 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg TOV voltage [L-N] U T 335 V / 5 sec. Operating temperature range (parallel connection) T UP -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C Operation indicator green light Cross-sectional area (L, L, N, N, PE, 9) min. 10 mm 2 solid/flexible Cross-sectional area (L, N, PE) max. 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L, N, 9) max. 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 6 mods., DIN 43880 Approvals, Certifications KEMA, VDE Type DV 2P TN 255 Part No. 900 371 Packing unit 1 pc(s) Accessory Part for DEHNventil 2P 910 621 DSI DV 2P DEHNsignal DV 2 P DSI DV 2P: Remote signalling module for two-pole surge arresters DSI DV 2P with 2-wire interface DSI DV 2P (e.g. DEHNventil 2P TN /... TT) DEHNsignal, 2-pole 910 621 PU Part Type pc(s) No. DSI DV 2P 1 910 621 40

Arresters Type 1 900 370 DV 2P TT 255 COMBINED SPDs TYPE 1 DEHNventil TNC /... TNS /... TT /... 2P DEHNventil 2P TT DV 2P TT 255 DEHNventil TT, 2-pole 900 370 L L N N H NPE PE Dimension drawing DV 2P TT 255 Basic circuit diagram DV 2P TT 255 DV 2P TT 255: Combined lightning current and surge arrester for single-phase TT and TN systems ( 1+1 circuit) DV 2P TT 255 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Nominal ac voltage U N Lightning impulse current (10/350 μs) [L+N-PE] I imp Lightning impulse current (10/350 μs) [L-N] I imp Lightning impulse current (10/350 μs) [N-PE] I imp Nominal discharge current (8/20 μs) I n Voltage protection level [L-N] U P Voltage protection level [N-PE] U P Class I 230 V 255 V 50 ka 25 ka 50 ka 25 / 50 ka 1.5 kv 1.5 kv Follow current extinguishing capability [L-N] ac I fi 50 ka rms Follow current extinguishing capability [N-PE] ac I fi 100 A rms Follow current limitation/selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns Max. backup fuse (L) up to I K = 50 ka rms 315 A gl/gg Max. backup fuse (L) at I K > 50 ka rms 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [N-PE] U T 1200 V / 200 ms Operating temperature range (parallel connection) T UP -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C Operation indicator green light Cross-sectional area (L, L, N, N, PE, 9) min. 10 mm 2 solid/flexible Cross-sectional area (L, N, PE) max. 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L, N, 9) max. 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94-V-0 Degree of protection IP 20 Dimension 8 mods., DIN 43880 Approvals, Certifications KEMA, VDE Type DV 2P TT 255 Part No. 900 370 Packing unit 1 pc(s) Accessory Part for DEHNventil 2P 910 621 DSI DV 2P DEHNsignal DV 2 P DSI DV 2P: Remote signalling module for two-pole surge arresters with 2-wire interface DSI DV 2P (e.g. DEHNventil 2P TN /... TT) DSI DV 2P 910 621 PU Part Type pc(s) No. DSI DV 2P 1 910 621 41

Arresters Type 1 DEHNsignal Remote Signalling and Receiver Module ACCESSORIES FOR SPDs TYPE 1 EN 61010-1; EN 61010-1/A2 Operating state indication of the connected surge protective device Indication of phase failures Floating changeover contact Integrated optical fibre interface for EMC-resistant signal transmission Remote signalling device for Red/Line surge protective devices with floating changeover contact and optical fibre interface. Receiver module for optical fibre transmission from remote signalling modules DEHNsignal DSI DV, DSI E 3, DSI DV 2P and DSI DBM; with floating changeover contact. DEHNsignal DV: Remote signalling module for multipole SPDs with 4-wire interface DSI DV single-pole SPDs with single-wire interface DSI DV in TN-S and TT systems DEHNsignal DV 2P: Remote signalling module for two-pole SPDs with 2-wire interface DSI DV 2P DEHNsignal DBM: Remote signalling module for single-pole SPDs with single-wire interface DSI DV in TN-C systems DEHNsignal E DV: Receiver module for optical fibre transmission from DEHNsignal remote signalling modules DEHNsignal E 3: Receiver module for 3 DEHNbloc Maxi S surge arresters The remote signalling modules of the DEHNsignal product family perform the remote signalling of complex surge protective devices of the Red/Line product range with 4-wire interface DEHNsignal DV or 2-wire interface DEHNsignal DV 2P. Supplied by the surge protective devices to be controlled, DEHNsignal remote signalling devices provide the remote signal as a floating changeover contact and an optical fibre output. An evaluable group signal is generated out of the signals of individual protective circuits. This allows for continuous telemonitoring of the devices. As, apart from the operating state of the surge protection, also phase failures are registered, the possibilities for using DEHNsignal devices can be amplified. Whenever high safety and availability requirements have to be fulfilled, DEHNsignal devices are always the perfect solution. If the optical fibre connection, instead of the floating changeover contact, is chosen for using a DEHNsignal remote signalling module, the correspondingly adapted receiver module DEHNsignal E DV has to be used for evaluating the signal. The optical fibre connection between remote signalling and receiver module can be established easily due to the simple plug-in system for optical fibres, which is integrated into all DEHNsignal devices. The receiver module in DEHNsignal E DV transforms the optical fibre signal into an electrical signal. The user is then provided with a floating changeover contact like with DEHNsignal remote signalling module. The green light of DEHNsignal E DV signalises readiness for operation of the receiver module and functional readiness of the surge protective device to be controlled. With the optical fibre transmission system, the remote signalling of surge protective devices can be realised even for controlling highly sensitive facilities (e.g. explosive areas). Receiver module DSI E 3 is adapted especially to the installation sites of coordinated DEHNbloc Maxi S and DEHNgap Maxi S lightning current arresters. With the receiver module, 3 DEHNbloc Maxi S arresters and, if required, the N-PE protective circuit, can be controlled by telemonitoring. Considering the special installation environment within a switchgear cabinet, this is a significant advantage for application. 42

Arresters Type 1 910 620 DSI DV ACCESSORIES FOR SPDs TYPE 1 DEHNsignal DEHNsignal DV DSI DV 1 DEHNsignal 910 620 optical fibre 2 3 & evaluation 12 14 4 Note: Change of contacts at present voltage and operating surge protective device! 11 Dimension drawing DSI DV Basic circuit diagram DSI DV DSI DV: Remote signalling module for multipole SPDs with 4-wire interface DSI DV (e.g. DEHNventil TNC /... TNS /... TT) single-pole SPDs with single-wire interface DSI DV in TN-S and TT systems (e.g. DEHNbloc Maxi) DSI DV Version for three-phase systems Power input P 500 mw Operating temperature range -40 C...+80 C Connection of the module only at provided terminal of the surge protective device Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 1.5 mods., DIN 43880 Type of remote signalling contact floating changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area min. 0.5 mm 2 solid/flexible; max. 4 mm 2 solid/flexible Optical fibre interface 660 nm Reach with LWL DSI and DEHNsignal reception module DSI E DV (Part No. 910 630) max. 100 m Test standards EN 61010-1:1993; EN 61010-1/A2:1995 Type DSI DV Part No. 910 620 Packing unit 1 pc(s) 43

Arresters Type 1 DEHNsignal DEHNsignal DV 2 P ACCESSORIES FOR SPDs TYPE 1 910 621 DSI DV 2P DSI DV 2P DEHNsignal, 2-pole 910 621 optical fibre 12 1 14 2 11 Note: Change of contacts at present voltage and operating surge protective device! Basic circuit diagram DSI DV 2P Dimension drawing DSI DV 2P DSI DV 2P: Remote signalling module for two-pole surge arresters with 2-wire interface DSI DV 2P (e.g. DEHNventil 2P TN /... TT) DSI DV 2P Version for ac systems Power input P 400 mw Operating temperature range -40 C...+80 C Connection of the module only at provided terminal of the surge protective device Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 1.5 mods., DIN 43880 Type of remote signalling contact floating changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area min. 0.5 mm 2 solid/flexible; max. 4 mm 2 solid/flexible Optical fibre interface 660 nm Reach with LWL DSI and DEHNsignal reception module DSI E DV (Part No. 910 630) max. 100 m Test standards EN 61010-1:1993; EN 61010-1/A2:1995 Type DSI DV 2P Part No. 910 621 Packing unit 1 pc(s) 44

Arresters Type 1 910 623 DSI DBM ACCESSORIES FOR SPDs TYPE 1 DEHNsignal DEHNsignal DBM DSI DBM 1 DEHNsignal DB M Remote Signalling Module 910 623 optical fibre 2 3 & evaluation 12 14 4 Note: Change of contacts at present voltage and operating surge protective device! 11 Dimension drawing DSI DBM Basic circuit diagram DSI DBM DSI DBM: Remote signalling module for single-pole surge arresters with single-wire interface DSI DV in TN-C systems (e.g. DEHNbloc Maxi) DSI DBM Version for three-phase systems Power input P 500 mw Operating temperature range -40 C...+80 C Connection of the module only at provided terminal of the surge protective device Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 1.5 mods., DIN 43880 Type of remote signalling contact floating changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area min. 0.5 mm 2 solid/flexible; max. 4 mm 2 solid/flexible Optical fibre interface 660 nm Reach with LWL DSI and DEHNsignal reception module DSI E DV (Part No. 910 630) max. 100 m Test standards EN 61010-1:1993; EN 61010-1/A2:1995 Type DSI DBM Part No. 910 623 Packing unit 1 pc(s) 45

Arresters Type 1 DEHNsignal DEHNsignal E DV ACCESSORIES FOR SPDs TYPE 1 910 630 DSI E DV L/N optical fibre DSI E DV DEHNsignal Reception Module 910 630 signal evaluation 12 14 N/L Note: Change of contacts at present voltage and optical fibre signal! 11 Basic circuit diagram DSI E DV Dimension drawing DSI E DV DSI E DV: Receiver module for optical fibre transmission from DEHNsignal remote signalling modules DSI E DV Version optical fibre connection to DEHNsignal remote signalling modules Supply ac voltage U N 230 V Power input P 400 mw Backup fuse (only required, if not already provided in mains) 16 A gl/gg or C 16 A Operating temperature range -40 C...+80 C Signal input by optical fibre plug-in system (LWL ST DSI) Indication green LED: reception / operation Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 1.5 mods., DIN 43880 Type of remote signalling contact floating changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area min. 0.5 mm 2 solid/flexible; max. 4 mm 2 solid/flexible Test standards EN 61010-1:1993 and EN 61010-1/A2:1995 Type DSI E DV Part No. 910 630 Packing unit 1 pc(s) Accessory Part for DEHNsignal LWL DSI Plastic optical fibre 910 640 LWL DSI DSI LWL fibre PU Optical 910 640 Part Type Diameter Length pc(s) No. LWL DSI 2.2 mm 100 m 1 910 640 910 641 LWL ST DSI ST DSI Lichtwellenleiter Accessory Part for DEHNsignal LWL ST DSI Plug for plastic optical fibres LWL für PU Stecker 910 641 Part Type Diameter pc(s) No. LWL ST DSI 2.2 mm 10 910 641 46

Arresters Type 1 910 631 DSI E 3 ACCESSORIES FOR SPDs TYPE 1 DEHNsignal DEHNsignal E 3 DSI E 3 910 631 LWL 1 LWL 2 LWL 3 L N signal evaluation red L1 red L2 red L3 green 12 14 N 11 Note: Change of contacts at present voltage and optical fibre signal! Dimension drawing DSI E 3 Basic circuit diagram DSI E 3 DSI E 3: Optical-fibre-based receiver module for selective operating state indication / collective signal of disturbance by 3 coordinated lightning current arresters DEHNbloc Maxi S and, if required, DEHNgap Maxi S in 5-conductor systems DSI E 3 Supply ac voltage U N 230 V Power input P < 550 mw Backup fuse for supply voltage 16 A gl/gg or C 16 A Operating temperature range -40 C...+80 C Signal input 3x by optical fibre plug-in system (LWL ST DSI) Operating state indication green LED Selective state indication 3 x red LEDs (L1, L2, L3) Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 1.5 mods., DIN 43880 Type of remote signalling contact floating changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area min. 0.5 mm 2 solid/flexible; max. 4 mm 2 solid/flexible Max. distance with LWL DSI 18M 6 m Test standards EN 61010-1:1993 and EN 61010-1/A2:1995 Type DSI E 3 Part No. 910 631 Packing unit 1 pc(s) Accessory Part for DEHNsignal Accessory Part for DEHNsignal LWL ST DSI Plug for plastic optical fibres 910 641 LWL ST DSI LWL DSI 18M 18 metres of plastic optical fibre, preferably for use of DEHNbloc Maxi S 910 642 LWL DSI 18M PU Part Type Diameter pc(s) No. LWL ST DSI 2.2 mm 10 910 641 LWL ST DSI Plug for Optical Fibre 910 641 PU Part Type Diameter Length pc(s) No. LWL DSI 18M 2.2 mm 18 m 1 910 642 LWL DSI 18M 910 642 47

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Combined Arresters Type 1 DEHNsignal Easy Choice ACCESSORIES FOR SPDs TYPE 1 L1 L1' L2 L2' L3 L3' H1 H2 H3 DEHNventil DV TNC 255 or L1 L1' L2 L2' L3 L3' N N' H1 H2 H3 DEHNventil DV TNS 255 or L1 L1' L2 L2' L3 L3' N N' H1 H2 H3 DEHNventil DV TT 255 14 11 12 DEHNsignal DSI DV - only for DEHNsignal - PEN -only for DEHNsignal PE -only for DEHNsignal PE 1 2 3 4 - nur für DEHNsignal - -nur für DEHNsignal- -nur für DEHNsignal- 1x DV TNC 255 Part No. 900 373 1x DV TNS 255 Part No. 900 374 1x DV TT 255 Part No. 900 375 1x DSI DV Part No. 910 620 L1 L1' N N' H DEHNventil DV 2P TN 255 or L L' N N' H1 DEHNventil DV 2P TT 255 14 11 12 DEHNsignal DSI DV 2P - only for DEHNsignal - PE -only for DEHNsignal PE 1 2 - nur für DEHNsignal - -nur für DEHNsignal- 1x DV 2P TN 255 Part No. 900 371 1x DV 2P TT 255 Part No. 900 370 1x DSI DV 2P Part No. 910 621 L L' DEHNbloc Maxi DBM 1 255 L L' DEHNbloc Maxi DBM 1 255 L L' DEHNbloc Maxi DBM 1 255 or L L' DEHNbloc Maxi DBM 1 255 L L L' DEHNbloc Maxi DBM 1 255 L L L' DEHNbloc Maxi DBM 1 255 L 14 11 12 DEHNsignal DSI DBM N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN 1 2 3 3x DBM 1 255 Part No. 900 025 3x DBM 1 255 L Part No. 900 026 1x DSI DBM Part No. 910 623 L L' DEHNbloc Maxi DBM 1 255 L L' DEHNbloc Maxi DBM 1 255 L L' DEHNbloc Maxi DBM 1 255 L L' DEHNbloc Maxi DBM 1 255 or L L' DEHNbloc Maxi DBM 1 255 L L L' DEHNbloc Maxi DBM 1 255 L L L' DEHNbloc Maxi DBM 1 255 L L L' DEHNbloc Maxi DBM 1 255 14 11 12 DEHNsignal DSI DV N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN 1 2 3 4 4x DBM 1 255 Part No. 900 025 3x DBM 1 255 L Part No. 900 026 1x DBM 1 255 Part No. 900 025 1x DSI DV Part No. 910 620 L L' DEHNbloc Maxi DBM 1 255 L L' DEHNbloc Maxi DBM 1 255 L L' DEHNbloc Maxi DBM 1 255 N N' DEHNgap Maxi DGPM 255 or L L' DEHNbloc Maxi DBM 1 255 L L L' DEHNbloc Maxi DBM 1 255 L L L' DEHNbloc Maxi DBM 1 255 L N N' DEHNgap Maxi DGPM 255 14 11 12 DEHNsignal DSI DV N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN N D SI N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN N D SI 1 2 3 4 3x DBM 1 255 Part No. 900 025 1x DGPM 255 Part No. 900 055 3x DBM 1 255 L Part No. 900 026 1x DGPM 255 Part No. 900 055 1x DSI DV Part No. 910 620 L L' DEHNbloc Maxi DBM 1 255 L L' DEHNbloc Maxi DBM 1 255 or L L' DEHNbloc Maxi DBM 1 255 L L L' DEHNbloc Maxi DBM 1 255 14 11 12 DEHNsignal DSI DV 2P N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN N /PEN D SI N/PEN 1 2 2x DBM 1 255 Part No. 900 025 1x DBM 1 255 L Part No. 900 026 1x DBM 1 255 Part No. 900 025 1x DSI DV 2P Part No. 910 621 L L' DEHNbloc Maxi DBM 1 255 N N' DEHNgap Maxi DGPM 255 or L L' DEHNbloc Maxi DBM 1 255 L N N' DEHNgap Maxi DGPM 255 14 11 12 DEHNsignal DSI DV 2P N /PEN D SI N/PEN N D SI N /PEN D SI N/PEN N D SI 1 2 1x DBM 1 255 Part No. 900 025 1x DGPM 255 Part No. 900 055 1x DBM 1 255 L Part No. 900 026 1x DGPM 255 Part No. 900 055 1x DSI DV 2P Part No. 910 621 DEHNbloc Maxi DBM 1 255 S DEHNbloc Maxi DBM 1 255 S DEHNbloc Maxi DBM 1 255 S or DEHNbloc Maxi DBM 1 255 S DEHNbloc Maxi DBM 1 255 S DEHNbloc Maxi DBM 1 255 S DEHNgap Maxi DGPM 1 255 S 12 11 14 L1 L2 L3 N N L 3x DBM 1 255 S Part No. 900 220 3x DBM 1 255 S Part No. 900 220 1x DGPM 1 255 S Part No. 900 050 1x DSI E 3 Part No. 910 631 48

LIGHTNING CURRENT ARRESTERS TYPE 1 SPD Type 1 according to EN 61643-11 SPD Class I according to IEC 61643-1 DEHNbloc Maxi Coordinated Lightning Current Arrester For protection of low voltage consumer s installations against surges even at direct lightning strokes. For use in the lightning protection zones concept at boundaries 0 A 1. Encapsulated RADAX Flow spark gap with high follow current limitation No tripping of 32 A gl/gg fuses up to short-circuit currents of 50 ka rms Discharge capacity up to 50 ka (10/350 μs) Coordinated directly with DEHNguard surge protective device without additional cable length Low voltage protection level Double terminals for series connection Multifunctional connection for conductors and busbars DEHNbloc Maxi 1 255: Coordinated, single-pole lightning current arrester with high follow current limitation for U C = 255 V DEHNbloc Maxi 1 255 L: Coordinated, single-pole lightning current arrester with high follow current limitation and operating voltage indicator for U C = 255 V DEHNbloc Maxi 1 135: Coordinated, single-pole lightning current arrester with high follow current limitation for U C = 135 V DEHNbloc Maxi 440: Coordinated, single-pole lightning current arrester with high follow current limitation for U C = 440 V The coordinated lightning current arresters of the DEHNbloc Maxi product family adapt themselves to every kind of application. Whether being used in an exposed position or in rough industrial applications: DEHNbloc Maxi always offers the right solution. The single-pole devices are originally coordinated with the approved DEHNguard surge arresters of the Red/Line family. Independent from cable lengths and without requiring additional decoupling coils, the surge protection concept can be adapted individually to all conditions at the installation. DEHNbloc Maxi devices provide patented technology of encapsulated creepage discharge spark gaps and RADAX Flow follow current limitation. Special safety distances from busbars or equipment belong to the past as well as tripped backup fuses due to lacking selectivity between the protective device and overcurrent protection. This ensures maximum system availability. For indicating the presence of phase voltages and readiness for operation on site, DEHNbloc Maxi type DBM 1 255 L has an integrated operating voltage indicator. DEHNbloc Maxi devices can also be used for signalling readiness for operation of the equipment as well as presence of operating voltage to a superior control system by remote signalling contact. Using the double terminals of DEHNbloc Maxi devices, which are suitable for all types of conductors, allows to realise a series connection in a space- and cost-saving way up to nominal currents of 125 A, as preferred by standard IEC 60364-5-53. The multifunctional terminal is suitable for simultaneous connection of conductors and busbars. This allows for easy wiring with other DIN rail mounted devices. 49

DEHNbloc Maxi DEHNbloc Maxi 1 255 (L) LIGHTNING CURRENT ARRESTERS TYPE 1 900 025 DBM 1 255 900 026 DBM 1 255 L L L DBM 1 255 900 025 DBM 1 255 L 900 026 H N /PEN N/PEN Basic circuit diagram DBM 1 255 L Dimension drawing DBM 1 255 L DBM 1 255 (L): Coordinated, single-pole lightning current arrester with high follow current limitation for U C = 255 V; optionally available with operating state indicator (L) DBM 1 255 DBM 1 255 L SPD according to EN 61643-11 Type 1 Type 1 SPD according to IEC 61643-1 Class I Class I 255 V 255 V Lightning impulse current (10/350 μs) I imp 50 ka 50 ka Nominal discharge current (8/20 μs) I n 50 ka 50 ka Voltage protection level U P 2.5 kv 2.5 kv Follow current extinguishing capability ac I fi 50 ka rms 50 ka rms Follow current limitation / Selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns 100 ns Max. backup fuse (L) up to I K = 25 ka rms (t a 0.2 s) 500 A gl/gg 500 A gl/gg Max. backup fuse (L) at I K = 50 ka rms (t a 5 s) 315 A gl/gg 315 A gl/gg Max. backup fuse (L) up to I K > 50 ka rms 200 A gl/gg 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg 125 A gl/gg TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range (parallel connection) T UP -40 C...+80 C -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C -40 C...+60 C Cross-sectional area (L, L, N/PEN, N /PEN) min. 10 mm 2 solid/flexible 10 mm 2 solid/flexible Cross-sectional area (L, N/PEN) max. 50 mm 2 stranded/35 mm 2 flexible 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L, N /PEN) max. 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 2 mods., DIN 43880 2 mods., DIN 43880 Operation indicator green light Type DBM 1 255 DBM 1 255 L Part No. 900 025 900 026 Packing unit 1 pc(s) 1 pc(s) DSI DV DEHNsignal 910 620 Accessory Part for DEHNbloc Maxi 910 620 DSI DV DEHNsignal DV DSI DV: Remote signalling module for multipole SPDs with 4-wire interface DSI DV (e.g. DEHNventil TNC /... TNS /... TT) single-pole SPDs with single-wire interface DSI DV in TN-S and TT systems (e.g. DEHNbloc Maxi) PU Part Type pc(s) No. DSI DV 1 910 620 Accessory Part for DEHNbloc Maxi 910 623 DSI DBM DEHNsignal DBM DSI DBM: Remote signalling module for single-pole surge arresters DSI DBM with single-wire interface DSI DV in TN-C systems (e.g. DEHNbloc DEHNsignal DB M Remote Signalling Module 910 623 Maxi) PU Part Type pc(s) No. DSI DBM 1 910 623 50

900 015 DBM 1 135 LIGHTNING CURRENT ARRESTERS TYPE 1 DEHNbloc Maxi DEHNbloc Maxi 1 135 DBM 1 135 900 015 L L N /PEN N/PEN Dimension drawing DBM 1 135 Basic circuit diagram DBM 1 135 DBM 1 135: Coordinated, single-pole lightning current arrester with high follow current limitation for U C = 135 V DBM 1 135 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I 135 V Lightning impulse current (10/350 μs) I imp 25 ka Nominal discharge current (8/20 μs) I n 25 ka Voltage protection level U P 1.5 kv Follow current extinguishing capability ac I fi 50 ka rms Follow current limitation / Selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns Max. backup fuse (L) up to I K = 25 ka rms (t a 0.2 s) 315 A gl/gg Max. backup fuse (L) at I K = 50 ka rms (t a 5 s) 250 A gl/gg Max. backup fuse (L) up to I K > 50 ka rms 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg TOV voltage U T 335 V / 5 sec. Operating temperature range (parallel connection) T UP -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C Cross-sectional area (L, L, N/PEN, N /PEN) min. 10 mm 2 solid/flexible Cross-sectional area (L, N/PEN) max. 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L, N /PEN) max. 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 2 mods., DIN 43880 Type DBM 1 135 Part No. 900 015 Packing unit 1 pc(s) 51

DEHNbloc Maxi DEHNbloc Maxi 440 LIGHTNING CURRENT ARRESTERS TYPE 1 L L PE PE 900 044 DBM 440 DBM 440 900 044 Basic circuit diagram DBM 440 Dimension drawing DBM 440 DBM 440: Coordinated, single-pole lightning current arrester with high follow current limitation for U C = 440 V DBM 440 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I 440 V Lightning impulse current (10/350 μs) I imp 20 ka Nominal discharge current (8/20 μs) I n 20 ka Voltage protection level U P 2.5 kv Follow current extinguishing capability ac I fi 50 ka rms Follow current limitation / Selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns Max. backup fuse (L) up to I K = 50 ka rms 250 A gl/gg Max. backup fuse (L) up to I K > 50 ka rms 160 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg Operating temperature range (parallel connection) T UP -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C Cross-sectional area (L, L, PE, PE ) min. 10 mm 2 solid/flexible Cross-sectional area (L, PE) max. 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L, PE ) max. 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 6 mods., DIN 43880 Type DBM 440 Part No. 900 044 Packing unit 1 pc(s) 52

LIGHTNING CURRENT ARRESTERS TYPE 1 SPD Type 1 according to EN 61643-11 SPD Class I according to IEC 61643-1 DEHNbloc Maxi S Coordinated Lightning Current Arrester for Busbars For protection of low voltage consumer s installations against surges. For use according to the lightning protection zones concept at boundaries 0 A 1. Combination out of spark gap and backup fuse To be mounted directly onto PEN/N busbar Low voltage protection level U P 2.5 kv (includes 80 cm connecting cable) Directly coordinated to DEHNguard surge protective device without additional cable length Short-circuit withstand capability of 100 ka rms (220 ka peak ) High follow current extinguishing capability and follow current limitation due to RADAX Flow technology With optical-fibre interface for controlling the surge arrester DEHNbloc Maxi 1 255 S: Coordinated lightning current arrester with integrated backup fuse for busbars DEHNbloc Maxi S makes it possible to integrate surge protection into application environments of a low-voltage switchgear installation or distribution board more than before. Due to its unique mechanical design, the coordinated DEHNbloc Maxi S lightning current arrester can be mounted directly onto PEN/N busbars of the switchgear installation without additional adapters. With the backup fuse integrated into the device, no further separate backup fuses need to be installed. The installation of the DEHNbloc Maxi S devices directly into the terminal panel of the switchgear installation upstream of the circuit breaker, ensures short cable lengths of the surge arresters and a low voltage protection level for the installation. With a discharge capacity of 25 ka (10/350 μs) DEHNbloc Maxi S fulfils maximum requirements by national and international lightning protection standards for all three-phase current applications in TN and TT systems. For 3+1 circuits, the user is provided with DEHNgap Maxi S, a powerful creepage discharge spark gap with a discharge capacity of 100 ka (10/350 μs). The patented RADAX Flow follow current limitation was also realised for DEHNbloc Maxi S and makes thus a selectivity possible, even for smallsized fuses. The capability of conducting lightning impulse currents without damage and to suppress mains follow currents without causing a tripping of upstream overcurrent protective devices, ensures the availability of the switchgear installation in case of a lightning strike and reduces considerably the risk of upcoming arcing faults in the installation. In connection with the remote signalling system DEHNsignal, the readiness for operation of DEHNbloc Maxi S devices can always be controlled. An optical fibre transmission to the reception module DEHNsignal E 3, which is easy to realise, ensures a safe electrical isolation between the conductor and the remote signalling circuit. *) DEHbloc Maxi S DBM 1 255 S **) DEHNgap Maxi S DGPM 1 255 S main circuit breaker L1 L2 L3 optical fibre LWL DSI plastic max. 6 m TT / TN-S DSI E 3 power supply N' N L *) DEHbloc Maxi S DBM 1 255 S L1 main circuit breaker L2 L3 optical fibre LWL DSI plastic max. 6 m TN-C DSI E 3 power supply N' N L N busbar **) *) *) *) without wire jumper N'/N N L *) *) *) with wire jumper N'/N N L (PEN) PEN busbar N' N L equipotential bonding N' N L PE busbar DEHNgap Maxi S DGPM 1 255 S equipotential bonding! All three optical fibres must be connected! Used in a TT / TN-S system F L N power supply 230 V~ max. 16 A gl/gg (C 16 A)! All three optical fibres must be connected! Used in a TN-C system F L N power supply 230 V~ max. 16 A gl/gg (C 16 A) 53

DEHNbloc Maxi S DEHNbloc Maxi 1 255 S LIGHTNING CURRENT ARRESTERS TYPE 1 900 220 DBM 1 255 S L DBM 1 255 S 900 220 optical fibre N/PEN Basic circuit diagram DBM 1 255 S Dimension drawing DBM 1 255 S DBM 1 255 S: Coordinated single-pole lightning current arrester with integrated backup fuse for busbars DBM 1 255 S SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I 255 V Lightning impulse current (10/350 μs) I imp 25 ka Nominal discharge current (8/20 μs) I n 25 ka Voltage protection level U P 2.5 kv (includes 80 cm connecting cable) Follow current extinguishing capability ac I fi 50 ka rms Follow current limitation / Selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns Short-circuit withstand capability 100 ka rms (220 ka peak ) TOV voltage U T 335 V / 5 sec. Operating temperature range (parallel connection) T UP -40 C...+80 C Mounting on PEN / N busbar min. 35 mm 2 Connection by cable lug min. 35 mm 2 /max. 50 mm 2 Enclosure material red thermoplastic, UL 94 V-0 Dimension (W x H x D) 72 x 89 x 100 mm Operation indicator by optical fibres via DSI E 3 Type DBM 1 255 S Part No. 900 220 Packing unit 1 pc(s) Accessory Part for DEHNbloc Maxi S 910 631 DSI E 3 DEHNsignal E 3 Optical-fibre-based receiver module for selective operating state indication / collective signal of disturbance by 3 coordinated lightning DSI E 3 910 631 current arresters DEHNbloc Maxi S and, if required, DEHNgap Maxi S in 5-conductor systems PU Part Type pc(s) No. DSI E 3 1 910 631 Accessory Part for DEHNbloc Maxi S 910 642 LWL DSI 18M LWL DSI 18M 18 metres of plastic optical fibre, preferably for use of LWL DSI 18M DEHNbloc Maxi S 910 642 PU Part Type Diameter Length pc(s) No. LWL DSI 18M 2.2 mm 18 m 1 910 642 910 641 LWL ST DSI LWL ST DSI Plug for Optical Fibre 910 641 LWL ST DSI Plug for plastic optical fibres PU Part Type Diameter pc(s) No. LWL ST DSI 2.2 mm 10 910 641 54

LIGHTNING CURRENT ARRESTERS TYPE 1 SPD Type 1 according to EN 61643-11; SPD Class I according to IEC 61643-1; DEHNbloc Arrester For protection of low voltage consumer s installations against surges even at direct lightning strokes. For use in the lightning protection zones concept at boundaries 0 A 1. Encapsulated, non-exhausting creepage discharge spark gap DEHNbloc... H: RADAX Flow spark gap technology with high follow current limitation Energy-coordinated within the Red/Line product family Installation also possible upstream of meter panels due to high insulation resistance Multifunctional connection for conductors and busbars Single-pole and 3-pole device (for lightning impulse currents up to 100 ka according to system configuration) Unit in NH00 design DEHNbloc 1 255 H: Single-pole lightning current arrester with high follow current limitation DEHNbloc 3 255 H: 3-pole lightning current arrester with high follow current limitation DEHNbloc NH00 H: Lightning current arrester, NH 00 design, with high follow current limitation DEHNbloc 1 440: Single-pole lightning current arrester for U C = 440 V The spark gaps of the DEHNbloc lightning current arresters allow for compact design of low-voltage distribution boards. Using the pressure-controlled encapsulated creepage discharge spark gaps, safety distances from electrical busbars and special flameproof enclosures have belonged to the past already for a long time. With a lightning current discharge capacity up to 50 ka (10/350 μs) per pole, DEHNbloc devices fulfil maximum requirements by national and international lightning protection and application standards. The consequent continuation of the idea of integration has made the DEHNbloc devices more powerful: With the product description DEHNbloc... H, the groundbreaking RADAX Flow spark gap technology for follow current extinction and follow current limitation was integrated into the DEHNbloc family. The RADAX Flow technology prevents operational interruptions caused by tripping conductor protection due to responding SPDs. In times of increasing dependence of all systems on a functioning electrical infrastructure, this is an indispensable product feature. Due to the RADAX Flow principle, even short circuits up to 50 ka rms in installations can be limited in their amplitudes to approx. 500 A and be extinguished after approx. 5 ms. This performance allows for a breaking selectivity of the surge arrester even to smaller fuses. But the concept of the DEHNbloc H family is also convincing with other product features: With its phase- and earth-side double terminals, the single-pole device DEHNbloc 1 255 H provides the user with many possibilities for application. With the double terminals, which are available for all conductor connections, even 3-pole DEHNbloc 3 255 H surge arresters can be connected in series in a space- and cost-saving way for nominal installation currents up to 125 A, as preferred in IEC 60364-5-53. For application with other DIN rail mountable devices, especially multifunctional terminals are suitable for connection of conductors and busbars. Especially for industrial distribution boards as well as for power supply systems, DEHNbloc NH00 255 H was developed. This can be installed into NH base parts or NH disconnectors, size 00, in accordance with the system involved. With DEHNbloc 1 440, the user is provided with a lightning current arrester for rated voltages of 440 V. DB NH00 255 H in a busbar terminal field of a meter system 55

DEHNbloc DEHNbloc... 255 H LIGHTNING CURRENT ARRESTERS TYPE 1 900 222 DB 1 255 H 900 120 DB 3 255 H L L L1 L2 L3 DB 1 255 H DEHNbloc/1 900 222 DB 3 255 H 900 120 N /PEN N/PEN N/PEN Basic circuit diagram DB 1 255 H / DB 3 255 H Dimension drawing DB 1 255 H / DB 3 255 H DB... 255 H: Single- and 3-pole lightning current arrester with high follow current limitation DB 1 255 H DB 3 255 H SPD according to EN 61643-11 Type 1 Type 1 SPD according to IEC 61643-1 Class I Class I Nominal voltage ac U N 230 V 230/400 V 255 V 255 V Lightning impulse current (10/350 μs) I imp 50 ka Lightning impulse current (10/350 μs) [L-N/PEN] I imp 50 ka Lightning impulse current (10/350 μs) [L1+L2+L3-N/PEN] I imp 100 ka Nominal discharge current (8/20 μs) I n 50 ka 50 / 100 ka Voltage protection level U P 4 kv 4 kv Follow current extinguishing capability ac I fi 50 ka rms 50 ka rms Follow current limitation / Selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns 100 ns Max. backup fuse up to I K = 25 ka rms (t a 0.2 s) 500 A gl/gg 500 A gl/gg Max. backup fuse up to I K = 50 ka rms (t a 5 s) 315 A gl/gg 315 A gl/gg Max. backup fuse at I K > 50 ka rms 200 A gl/gg 200 A gl/gg Max. backup fuse (L-L ) 125 A gl/gg 125 A gl/gg TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range (parallel connection) T UP -40 C...+80 C -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C -40 C...+60 C Cross-sectional area (L, L, N/PEN, N /PEN) min. 10 mm 2 solid/flexible Cross-sectional area (L, N/PEN) max. 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L, N /PEN) max. 35 mm 2 stranded/25 mm 2 flexible Cross-sectional area (L1, L1, L2, L2, L3, L3, N/PEN, N /PEN) 10 mm 2 solid/flexible Cross-sectional area (L1, L2, L3, N/PEN) 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (L1, L2, L3, N /PEN) 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 2 mods., DIN 43880 6 mods., DIN 43880 Type DB 1 255 H DB 3 255 H Part No. 900 222 900 120 Packing unit 1 pc(s) 1 pc(s) 56

900 273 DB NH00 255 H LIGHTNING CURRENT ARRESTERS TYPE 1 DEHNbloc DEHNbloc NH00 255 H DB NH00 255 H 900 273 Dimension drawing DB NH00 255 H Basic circuit diagram DB NH00 255 H DB NH00 255 H: Single-pole lightning current arrester in NH design size 00 with high follow current limitation DB NH00 255 H SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I 255 V Lightning impulse current (10/350 μs) I imp 25 ka Nominal discharge current (8/20 μs) I n 25 ka Voltage protection level U P 4 kv Follow current extinguishing capability ac I fi 50 ka rms Follow current limitation / Selectivity no tripping of a 32 A gl/gg fuse up to 50 ka rms (prosp.) Response time t A 100 ns Max. backup fuse up to I K = 25 ka rms (t a 0.2 s) 315 A gl/gg Max. backup fuse up to I K = 50 ka rms (t a 5 s) 200 A gl/gg Max. backup fuse at I K > 50 ka rms 125 A gl/gg TOV voltage U T 335 V / 5 sec. Operating temperature range -40 C...+80 C Mounting on NH fuse holder, size 00 Enclosure material red thermoplastic, UL 94 V-0 Type DB NH00 255 H Part No. 900 273 Packing unit 1 pc(s) 57

DEHNbloc DEHNbloc 1 440 LIGHTNING CURRENT ARRESTERS TYPE 1 900 159 DB 1 440 DB 1 440 DEHNbloc/1 900 159 Basic circuit diagram DB 1 440 Dimension drawing DB 1 440 DB 1 440: Single-pole lightning current arrester with high discharge capacity for U C = 440 V DB 1 440 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I 440 V Lightning impulse current (10/350 μs) I imp 50 ka Nominal discharge current (8/20 μs) I n 50 ka Voltage protection level U P 4 kv Follow current extinguishing capability ac I fi 1.5 ka rms Response time t A 100 ns Max. backup fuse up to I K = 25 ka rms (t a 0.2 s) 500 A gl/gg Max. backup fuse up to I K = 50 ka rms (t a 5 s) 250 A gl/gg Max. backup fuse at I K > 50 ka rms 160 A gl/gg TOV voltage TN system U T 580 V / 5 sec. TOV voltage IT system U T 1200 V + U 0 / 200 ms Operating temperature range -40 C...+80 C Cross-sectional area (min.) 10 mm 2 solid/flexible Cross-sectional area (max.) 50 mm 2 stranded/35 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 2 mods., DIN 43880 Type DB 1 440 Part No. 900 159 Packing unit 1 pc(s) 58

N-PE LIGHTNING CURRENT ARRESTERS SPD Type 1 according to EN 61643-11; SPD Class I according to IEC 61643-1; DEHNgap Arrester Discharge capacity 100 ka (10/350 μs) Total current arrester, especially for use in TT systems in 3+1 circuits according to IEC 60364-5-53 between neutral conductor N and protective conductor PE Creepage discharge spark gap technology For protection of low voltage consumer s installations against surges even at direct lightning strokes. For use in the lightning protection zones concept at boundaries 0 A 1 in 3+1 circuits. DEHNgap Maxi 255: DEHNgap Maxi 255 S: DEHNgap BN 255: DEHNgap B NH00 N 255: Coordinated, single-pole N-PE lightning current arrester Coordinated, single-pole N-PE lightning current arrester for busbars Single-pole N-PE lightning current arrester Single-pole N-PE lightning current arrester in NH design Being total current arresters between neutral and protective conductors in TT systems, the single-pole N-PE lightning current arresters DEHNgap Maxi, DEHNgap Maxi S, DEHNgap BN and DEHNgap B NH are designed to ensure the fulfilment of the protection requirements between protection of persons and material assets in 3+1 circuits. Especially for this challenge, the creepage discharge spark gaps have been developed. With a discharge capacity up to 100 ka (10/350 μs) they fulfil the highest requirements made on such kinds of devices by national and international lightning protection standards. Their leakage-current-free spark-gapbased design allows the devices to be used in areas upstream of supply meters according to national regulations (e.g. German VDN regulations). Being coordinated N-PE lightning current arresters, DEHNgap Maxi and DEHNgap Maxi S have a special position among the total current arresters. Due to their response performance, DEHNgap Maxi and DEHNgap Maxi S can be coordinated directly with N-PE surge arrester DEHNgap C/T without additional decoupling coil. If lightning current and surge arresters have to be installed together at one site, DEHNgap C/T has not to be installed additionally any more due to the low voltage protection level of DEHNgap Maxi. The design and installation of DEHNgap Maxi S is adapted to special features of the low voltage switchgear installation and complements completeley the application of DEHNbloc Maxi S. DEHNgap B NH has been developed especially for industrial installations as well as for supply systems.this device can be integrated very easily into existing NH fuse holders, size 00. The DIN rail mounted devices DEHNgap Maxi and DEHNgap BN provide multifunctional terminals for connecting conductors and busbars for easy wiring with other DIN rail mounted terminals. The integrated feed-through terminal in DEHNgap Maxi allows for an especially compact, space-saving design. 59

DEHNgap DEHNgap Maxi 255 N-PE LIGHTNING CURRENT ARRESTERS 900 055 DGPM 255 N N DGPM 255 DEHNgap Maxi 900 055 NPE N Basic circuit diagram DGPM 255 Dimension drawing DGPM 255 DGPM 255: Coordinated, single-pole N-PE lightning current arrester DGPM 255 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I 255 V Lightning impulse current (10/350 μs) I imp 100 ka Nominal discharge current (8/20 μs) I n 100 ka Voltage protection level U P 1.5 kv Follow current extinguishing capability ac I fi 100 A rms Response time t A 100 ns TOV voltage 1200 V / 200 ms Operating temperature range (parallel connection) T UP -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C Cross-sectional area (N, N, PE) min. 10 mm 2 solid/flexible Cross-sectional area (N, PE) max. 50 mm 2 stranded/35 mm 2 flexible Cross-sectional area (N ) max. 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 2 mods., DIN 43880 Approvals, Certifications KEMA Type DGPM 255 Part No. 900 055 Packing unit 1 pc(s) 60

900 050 DGPM 1 255 S N-PE LIGHTNING CURRENT ARRESTERS DEHNgap DEHNgap Maxi 1 255 S DGPM 1 255 S 900 050 PE NPE N (DSI E 3) N/PEN Dimension drawing DGPM 1 255 S Basic circuit diagram DGPM 1 255 S DGPM 1 255 S: Coordinated, single-pole N-PE lightning current arrester for busbars DGPM 1 255 S SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I 255 V Lightning impulse current (10/350 μs) I imp 100 ka Nominal discharge current (8/20 μs) I n 100 ka Voltage protection level U P 2.5 kv (includes 80 cm connecting cable) Follow current extinguishing capability ac I fi 100 A rms Response time t A 100 ns TOV voltage 1200 V / 200 ms Operating temperature range (parallel connection) T UP -40 C...+80 C Operating temperature range (series connection) T US -40 C...+60 C Mounting on N busbar min. 35 mm 2 Terminal by cable lug min. 35 mm 2 /max. 50 mm 2 Function control by DEHNsignal DSI E 3 Min. connection for DSI E 3 (N ) 1 mm 2 solid/flexible Max. connection for DSI E 3 (N ) 2.5 mm 2 solid/flexible Enclosure material red thermoplastic, UL 94 V-0 Dimension (W x H x D) 72 x 89 x 100 mm Type DGPM 1 255 S Part No. 900 050 Packing unit 1 pc(s) 61

DEHNgap DEHNgap BN 255 N-PE LIGHTNING CURRENT ARRESTERS 900 132 DGP BN 255 DGP BN 255 DEHNgap B/n 900 132 Basic circuit diagram DGP BN 255 Dimension drawing DGP BN 255 DGP BN 255: Single-pole N-PE lightning current arrester DGP BN 255 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I 255 V Lightning impulse current (10/350 μs) I imp 100 ka Nominal discharge current (8/20 μs) I n 100 ka Voltage protection level U P 4 kv Follow current extinguishing capability ac I fi 100 A rms Response time t A 100 ns TOV voltage 1200 V / 200 ms Operating temperature range T U -40 C...+80 C Cross-sectional area (min.) 10 mm 2 solid/flexible Cross-sectional area (max.) 50 mm 2 stranded/35 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 2 mods., DIN 43880 Approvals, Certifications KEMA, VDE, UL Type DGP BN 255 Part No. 900 132 Packing unit 1 pc(s) 62

900 269 DGP B NH00 N 255 N-PE LIGHTNING CURRENT ARRESTERS DEHNgap DEHNgap B NH00 DGP B NH00 N 255 DEHNgap B/NH/n 900 269 Dimension drawing DGP B NH00 N 255 Basic circuit diagram DGP B NH00 N 255 DGP B NH00 N 255: Single-pole N-PE lightning current arrester, NH design, size 00 DGP B NH00 N 255 SPD according to EN 61643-11 Type 1 SPD according to IEC 61643-1 Class I 255 V Lightning impulse current (10/350 μs) I imp 50 ka Nominal discharge current (8/20 μs) I n 50 ka Voltage protection level U P 4 kv Follow current extinguishing capability ac I fi 100 A rms Response time t A 100 ns TOV voltage 1200 V / 200 ms Operating temperature range T U -40 C...+80 C Mounting on NH fuse holder, size 00 Enclosure material red thermoplastic, UL 94 V-0 Approvals, Certifications VDE, UL Type DGP B NH00 N 255 Part No. 900 269 Packing unit 1 pc(s) 63

64

SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11 SPD Class II according to IEC 61643-1 For protection of low-voltage consumer s installations against surges. For use according to the lightning protection zones concept at boundaries 0 B 1 and higher. DEHNguard modular Modular Multipole Surge Arrester Complete prewired unit, consisting of a base part and plug-in protection modules Energy-coordinated within the Red/Line product family High discharge capacity due to powerful zinc oxide varistors/spark gaps High safety due to Thermo Dynamic Control SPD monitoring device Multifunctional terminals for connection of conductors and busbars Easy exchange of protection modules due to module releasing button DEHNguard M TNC...: DEHNguard M TNS...: DEHNguard M TT...: DEHNguard M TN...: DEHNguard M TT 2P...: DEHNguard M... FM: Modular surge arrester for TN-C systems Modular surge arrester for TN-S systems Modular surge arrester for TT and TN-S systems ( 3+1 circuit) Modular surge arrester for 230 V TN systems Modular surge arrester for 230 V TT and TN systems ( 1+1 circuit) With remote signalling contact for controlling device (floating changeover contact) The new modular DEHNguard M... surge arresters with functional Red/Line family design set new standards for safety and easy application. The approved protective circuit with powerful zinc oxide varistors in combination with the dual controlling device Thermo Dynamic Control characterise the DEHNguard technology. The fact that both safe surge protection and reliability of the devices are the central aspect of the new modular DEHNguard, can be taken from many features of the device. The application-orientated product designation, which makes the choice of the right devices considerably easier, stands also for high safety requirements as well as using the unique module locking device. This fixes the protection modules in the base part of the device. Neither vibrations during transport nor the enormous forces of currents during discharges can loosen the protection modules. And still, they can be exchanged easily without tools, if necessary. This is ensured by the user-friendly module releasing button of the protection modules. In order to avoid a wrong supplying by the installer or user when exchanging the modules, every protective circuit of the multipole surge arresters and protection module has a mechanical coding. The dual SPD monitoring device Thermo Dynamic Control was not developed only on the basis of the national and international product standards in force, but it stands also for experience of decades with surge protective devices worldwide and takes many application fields, which can lead to damage to the surge arresters, into consideration. Like with all DEHN surge arresters with Thermo Dynamic Control, also the intensity of the discharge current is evaluated, apart from the surface temperature of the high-capacity varistor. The readiness for operation of each protective circuit is shown by the visual indicator with green and red marks. Apart from this standard visual indicator, types DEHNguard M... FM have a 3- pole terminal for remote signalling. With the remote signalling contact, being a floating changeover contact, the remote signal can be used as a make or break contract, according to the circuit concept. The surge arresters of the multipole modular DEHNguard M family have multifunctional terminals in a standardised distance of 1 module for connection of conductors and busbars for easy wiring with other DINrail mountable devices. A series connection according to IEC 60364-5-53, which is optimal for protection, is therefore possible for many applications. 65

DEHNguard modular DEHNguard M TNC 275 (FM) SURGE ARRESTERS TYPE 2 952 300 DG M TNC 275 952 305 DG M TNC 275 FM L1 L2 L3 DG M TNC 275 952 300 DG M TNC 275 FM 952 305 12 11 14 PEN Basic circuit diagram DG M TNC 275 FM Dimension drawing DG M TNC 275 FM DG M TNC 275 (FM): Modular surge arrester for TN-C systems DG M TNC 275 DG M TNC 275 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230/400 V 230/400 V 275 V 275 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Voltage protection level U P 1.25 kv 1.25 kv Voltage protection level at 5 ka U P 1 kv 1 kv Response time t A 25 ns 25 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 3 mods., DIN 43880 3 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG M TNC 275 DG M TNC 275 FM Part No. 952 300 952 305 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNguard modular 952 010 DG MOD 275 Varistor-Based Protection Module for DEHNguard M... and DEHNguard S... surge arresters DG MOD 275 ÜS-Modul für DG M und DG S, 275 V 952 010 Type DG MOD 275 Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. DG MOD 275 1 952 010 66

952 400 DG M TNS 275 952 405 DG M TNS 275 FM SURGE ARRESTERS TYPE 2 DEHNguard modular DEHNguard M TNS 275 (FM) DG M TNS 275 952 400 DG M TNS 275 FM 952 405 L1 L2 L3 N 12 11 14 PE Dimension drawing DG M TNS 275 FM Basic circuit diagram DG M TNS 275 FM DG M TNS 275 (FM): Modular surge arrester for TN-S systems DG M TNS 275 DG M TNS 275 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230/400 V 230/400 V 275 V 275 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Voltage protection level U P 1.25 kv 1.25 kv Voltage protection level at 5 ka U P 1 kv 1 kv Response time t A 25 ns 25 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 4 mods., DIN 43880 4 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG M TNS 275 DG M TNS 275 FM Part No. 952 400 952 405 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNguard modular 952 010 DG MOD 275 Varistor-Based Protection Module for DEHNguard M... and DEHNguard S... surge arresters DG MOD 275 ÜS-Modul für DG M und DG S, 275 V 952 010 Type DG MOD 275 Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. DG MOD 275 1 952 010 67

DEHNguard modular DEHNguard M TT 275 (FM) SURGE ARRESTERS TYPE 2 952 310 DG M TT 275 952 315 DG M TT 275 FM L1 L2 L3 N DG M TT 275 952 310 DG M TT 275 FM 952 315 12 11 14 PE Basic circuit diagram DG M TT 275 FM Dimension drawing DG M TT 275 FM DG M TT 275 (FM): Modular surge arrester for TT and TN-S systems ( 3+1 circuit) DG M TT 275 DG M TT 275 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230/400 V 230/400 V Max. continuous ac voltage [L-N] U C 275 V 275 V Max. continuous ac voltage [N-PE] U C 255 V 255 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Lightning impulse current (10/350 μs) [N-PE] I imp 12 ka 12 ka Voltage protection level [L-N] U P 1.25 kv 1.25 kv Voltage protection level [L-N] at 5 ka U P 1 kv 1 kv Voltage protection level [N-PE] U P 1.5 kv 1.5 kv Follow current extinguishing capability [N-PE] I fi 100 A rms 100 A rms Response time [L-N] t A 25 ns 25 ns Response time [N-PE] t A 100 ns 100 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms TOV voltage [L-N] U T 335 V / 5 sec. 335 V / 5 sec. TOV voltage [N-PE] U T 1200 V / 200 ms 1200 V / 200 ms Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 4 mods., DIN 43880 4 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG M TT 275 DG M TT 275 FM Part No. 952 310 952 315 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNguard modular 952 010 DG MOD 275 Varistor-Based Protection Module for DEHNguard M... and DEHNguard S... surge arresters Accessory Part for DEHNguard modular 952 050 DG MOD NPE N-PE Spark-Gap-Based Protection Module for two- and four-pole DEHNguard DG M TT... surge arresters DG MOD 275 ÜS-Modul für DG M und DG S, 275 V 952 010 Type DG MOD 275 Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. DG MOD 275 1 952 010 DG MOD NPE ÜS-Modul N-PE für DG M TT 952 050 Type DG MOD NPE Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 40 ka PU Part Type pc(s) No. DG MOD NPE 1 952 050 68

952 200 DG M TN 275 952 205 DG M TN 275 FM SURGE ARRESTERS TYPE 2 DEHNguard modular DEHNguard M TN 275 (FM) DG M TN 275 952 200 DG M TN 275 FM 952 205 L N 12 11 14 PE Dimension drawing DG M TN 275 FM Basic circuit diagram DG M TN 275 FM DG M TN 275 (FM): Modular surge arrester for single-phase 230 V TN systems DG M TN 275 DG M TN 275 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230 V 230 V 275 V 275 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Voltage protection level U P 1.25 kv 1.25 kv Voltage protection level at 5 ka U P 1 kv 1 kv Response time t A 25 ns 25 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 2 mods., DIN 43880 2 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG M TN 275 DG M TN 275 FM Part No. 952 200 952 205 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNguard modular 952 010 DG MOD 275 Varistor-Based Protection Module for DEHNguard M... and DEHNguard S... surge arresters DG MOD 275 ÜS-Modul für DG M und DG S, 275 V 952 010 Type DG MOD 275 Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. DG MOD 275 1 952 010 69

DEHNguard modular DEHNguard M TT 2P 275 (FM) SURGE ARRESTERS TYPE 2 952 110 DG M TT 2P 275 952 115 DG M TT 2P 275 FM L N DG M TT 2P 275 952 110 DG M TT 2P 275 FM 952 115 12 11 14 PE Basic circuit diagram DG M TT 2P 275 FM Dimension drawing DG M TT 2P 275 FM DG M TT 2P 275 (FM): Modular surge arrester for single-phase 230 V TT and TN systems ( 1+1 circuit) DG M TT 2P 275 DG M TT 2P 275 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230 V 230 V Max. continuous ac voltage [L-N] U C 275 V 275 V Max. continuous ac voltage [N-PE] U C 255 V 255 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Lightning impulse current (10/350 μs) [N-PE] I imp 12 ka 12 ka Voltage protection level [L-N] U P 1.25 kv 1.25 kv Voltage protection level [L-N] at 5 ka U P 1 kv 1 kv Voltage protection level [N-PE] U P 1.5 kv 1.5 kv Follow current extinguishing capability [N-PE] I fi 100 A rms 100 A rms Response time [L-N] t A 25 ns 25 ns Response time [N-PE] t A 100 ns 100 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms TOV voltage [L-N] U T 335 V / 5 sec. 335 V / 5 sec. TOV voltage [N-PE] U T 1200 V / 200 ms 1200 V / 200 ms Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 2 mods., DIN 43880 2 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG M TT 2P 275 DG M TT 2P 275 FM Part No. 952 110 952 115 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNguard modular 952 010 DG MOD 275 Varistor-Based Protection Module for DEHNguard M... and DEHNguard S... surge arresters Accessory Part for DEHNguard modular 952 050 DG MOD NPE N-PE Spark-Gap-Based Protection Module for two- and four-pole DEHNguard DG M TT... surge arresters DG MOD 275 952 010 Type DG MOD 275 Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. DG MOD 275 1 952 010 DG MOD NPE 952 050 Type DG MOD NPE Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 40 ka PU Part Type pc(s) No. DG MOD NPE 1 952 050 70

SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11 SPD Class II according to IEC 61643-1 For protection of low-voltage consumer s installations against surges. For use in the lightning protection zones concept at boundaries 0 B 1 and higher. DEHNguard S Single-pole pluggable Surge Arrester Surge arrester for universal use, consisting of a base part and plug-in protective component High discharge capacity due to powerful zinc oxide varistor High safety due to Thermo Dynamic Control SPD monitoring device Energy-coordinated within the Red/Line product family Operating state/fault indication by mark in the inspection window Small (modular) design according to DIN 43880 Multifunctional terminals for connection of conductors and busbars Easy exchange of protection modules with module releasing button DEHNguard S...: Pluggable surge arrester, consisting of a base part and plug-in protection module DEHNguard S... FM: With remote signalling contact for monitoring device (floating changeover contact) The universal features characterise the single-pole devices of the DEHNguard S product family. Whether as a single device or in combination with other devices the DEHNguard S surge arresters are always suitable for the right protective circuit. The modern Red/Line family design and its universal features ensure safety and easy application for the user. The module releasing button also characterises the devices of the DEHNguard S series, like the approved Thermo Dynamic Control SPD monitoring device with dual tripping performance. Experience of decades with the application of surge arresters worldwide has further improved the latest DEHNguard generation compared to the previous types. The module locking system, which is unique for surge protective devices, fixes the protection modules to the base part. Neither vibrations during transport nor the enourmous forces of currents during discharges can loosen the protection modules. And still, they can be easily exchanged without tools, if necessary. This is ensured by the user-friendly releasing button of the protection modules. Like with all DEHNguard surge arresters, the users of DEHNguard S can rely on the dual monitoring device Thermo Dynamic Control. This provides maximum safety of the devices, even under unfavourable environmental conditions. Readiness for operation of DEHNguard S is indicated by the visual indicator with green and red marks. Apart from the standard visual indicator, DEHNguard S... FM has a 3-pole terminal for remote signalling. With the remote signalling contact, being a floating changeover contact, the remote signal can be used as a break or make contact, according to circuit concept. The DEHNguard S surge arresters are supplied with multifunctional terminals for connection of conductors and busbars. This allows for easy wiring in connection with other DINrail mountable devices. A series connection according to IEC 60364-5-53, which is optimal for protection, can therefore be performed in many applications. In order to avoid a wrong supplying by the installer or user when exchanging the protection modules, every base part and protection module has a mechanical coding set by the manufacturer. 71

DEHNguard S DEHNguard S 275 FM SURGE ARRESTERS TYPE 2 952 070 DG S 275 952 090 DG S 275 FM DG S 275 952 070 DG S 275 FM 952 090 12 11 14 Basic circuit diagram DG S 275 FM Dimension drawing DG S 275 FM DG S 275 (FM): Single-pole, pluggable surge arrester, consisting of a base part and plug-in protection module DG S 275 DG S 275 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II 275 V 275 V Max. continuous dc voltage U C 350 V 350 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Voltage protection level U P 1.25 kv 1.25 kv Voltage protection level at 5 ka U P 1 kv 1 kv Response time t A 25 ns 25 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms TOV voltage U r 335 V / 5 sec. 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1,5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 1 mod., DIN 43880 1 mod., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG S 275 DG S 275 FM Part No. 952 070 952 090 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNguard S 952 010 DG MOD 275 Varistor-Based Protection Module for DEHNguard M... and DEHNguard S... surge arresters DG MOD 275 952 010 Type DG MOD 275 Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. DG MOD 275 1 952 010 72

SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11 SPD Class II according to IEC 61643-1 For protection of low-voltage consumer s installations against surges. For use in the lightning protection zones concept at boundaries 0 B 1 and higher. DEHNgap C S N-PE Surge Arrester Especially for use in TT systems in 3+1 and 1+1 circuits according to IEC 60364-5-53 between neutral conductor N and protective conductor PE High discharge capacity Two-part unit, consisting of a base part and plug-in spark-gap-based protection module Energy-coordinated within the Red/Line product family Easy exchanging of protection modules with module releasing button Operating state/fault indication by mark in the inspection window With remote signalling contact for SPD controlling device DEHNgap C S: N-PE Surge arrester, consisting of a base part and plug-in protection module DEHNgap C S FM: With remote signalling contact for controlling device (floating changeover contact) The N-PE surge arrester DEHNgap C S is the perfect addition to the single-pole DEHNguard S surge protective devices. Being a total current arrester between the neutral conductor and protective conductor in TT systems, it ensures the requirements for protection of persons and material assets in so-called 3+1 and 1+1 circuits. With the modern Red/Line design, DEHNgap C S provides safety and performance just as the DEHNguard S devices. The module locking system, which is unique for surge protective devices, combines the spark-gapbased module and the base part to one powerful unit. Neither vibrations during transport nor the enormous forces of discharge currents can loosen the protection module. And still, the protection modules can be easily exchanged without tools, if necessary. This is ensured by the module releasing button of the protection module. The mechanical coding set by the manufacturer at the protection module and the base part prevents any wrong supplying by the installer or user. The monitoring of the arrester temperature and the integrated disconnector, which is connected in series to the surge arrester, further increases the safety of DEHNgap C S. Readiness for operation of DEHNgap C S is indicated by the visual indicator with green and red mark. Apart from the standard visual indicator, DEHNgap C S... FM provides a 3-pole terminal for remote signalling. As the remote signalling contact is a floating changeover contact, the remote signal can be used as a break or make contact, according to circuit concept. The N-PE surge arrester DEHNgap C S is supplied with multifunctional terminals for connection of conductors and busbars. This allows for easy wiring with further DIN rail mountable devices. A series connection according to IEC 60364-5-53, which is optimal for protection, can therefore be performed applied in many applications. 73

DEHNgap C S DEHNgap C S (FM) SURGE ARRESTERS TYPE 2 952 030 DGP C S 952 035 DGP C S FM DGP C S 952 030 DGP C S FM 952 035 12 11 14 Basic circuit diagram DGP C S FM Dimension drawing DGP C S FM DGP C S (FM): N-PE Surge arrester DGP C S DGP C S FM SPD Type according to EN 61643-11 SPD Class according to IEC 61643-1 Class II Class II 255 V 255 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Follow current extinguishing capability I fi 100 A rms 100 A rms Lightning impulse current (10/350 μs) I imp 12 ka 12 ka Voltage protection level U P 1.5 kv 1.5 kv Response time t A 100 ns 100 ns VOV voltage U T 1200 V / 200 ms 1200 V / 200 ms Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 1 mod., DIN 43880 1 mod., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DGP C S DGP C S FM Part No. 952 030 952 035 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNgap C S 952 060 DGP C MOD N-PE Spark-Gap-Based Protection Module for single-pole N-PE surge arresters type DEHNgap DGP C S... DGP C MOD 952 060 Type DGP C MOD Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 40 ka PU Part Type pc(s) No. DGP C MOD 1 952 060 74

SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11 SPD Class II according to IEC 61643-1 Protection Module for DEHNguard M,... S and DEHNgap C S High discharge capacity due to powerful zinc oxide varistors/spark gaps High safety due to Thermo Dynamic Control Energy-coordinated within the Red/Line product family Operating state/fault indication by mark in the inspection window With module releasing button for exchanging protection modules without tools For protection of low-voltage consumer s installations against surges. For use according to the lightning protection zones concept at boundaries 0 B 1 and higher. 952 010 DG MOD 275 DEHNguard MOD...: Varistor-based protection module for DEHNguard M... and DEHNguard S DEHNguard MOD NPE: N-PE spark-gap-based protection module for two- and four-pole DEHNguard M TT... devices DEHNgap C MOD: N-PE spark-gap-based protection module for single-pole N-PE DEHNgap C S... surge arresters The varistor- and spark-gap-based protection modules of the new DEHNguard M-, DEHNguard S- and DEHNgap C S devices impress users with their performance and sophistication. The compact protection modules include the complete protective circuit as well as the controlling device and disconnector. The readiness for operation of the protection modules is indicated by the green mark in the inspection window. In order to avoid a wrong supplying by the installer or user when exchanging the modules, all protection modules are coded mechanically by the manufacturer. For easy exchange of the modules without tools, all protection modules have a user-friendly module releasing button. Varistor-Based Protection Module DG MOD 275 952 010 Dimension drawing DG MOD varistor-based protection module Nominal discharge current (8/20 μs) I n Max. discharge current (8/20 μs) I max Max. continuous dc voltage U C Basic circuit diagram DG MOD varistor-based protection module DG MOD...: Varistor-based protection module for DEHNguard M... and DEHNguard S... surge arresters DG MOD 275 20 ka 40 ka 275 V 350 V Type DG MOD 275 Part No. 952 010 Packing unit 1 pc(s) 75

N-PE Spark-Gap-Based Protection Module for DEHNguard M TT SURGE ARRESTERS TYPE 2 952 050 DG MOD NPE DG MOD NPE 952 050 Basic circuit diagram DG MOD NPE Dimension drawing DG MOD NPE DG MOD NPE: N-PE spark-gap-based protection module for two- and four-pole DEHNguard DG M TT... surge arresters DG MOD NPE Nominal discharge current (8/20 μs) I n Max. discharge current (8/20 μs) I max 20 ka 40 ka 255 V Type DG MOD NPE Part No. 952 050 Packing unit 1 pc(s) N-PE Spark-Gap-Based Protection Module for DEHNgap C S 952 060 DGP C MOD DGP C MOD 952 060 Basic circuit diagram DGP C MOD Dimension drawing DGP C MOD DGP C MOD: N-PE spark-gap-based protection module for single-pole N-PE surge arresters type DEHNgap DGP C S... DGP C MOD Nominal discharge current (8/20 μs) I n Max. discharge current (8/20 μs) I max 20 ka 40 ka 255 V Type DGP C MOD Part No. 952 060 Packing unit 1 pc(s) 76

SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11 SPD Class II according to IEC 61643-1 For protection of low-voltage consumer s installations from surges. For use according to the lightning protection zones concept at boundaries 0 B 1 and higher. DEHNguard... H LI Multipole Surge Arrester with Pro-Active Thermo Control Complete prewired unit for common system configurations, consisting of a base part and plug-in protection modules Clear operating state indication due to 3-stage visual service life indicator <GREEN-YELLOW-RED> with linked remote signalling device SPD controlling device Pro-Active Thermo Control Requests the user in due time to exchange the protection module <YELLOW> at risk of prospective overload Energy-coordinated within the Red/Line product family DEHNguard TNC H LI: Multipole surge arrester with service life indicator for TN-C systems DEHNguard TNS H LI: Multipole surge arrester with service life indicator for TN-S systems DEHNguard TT H LI: Multipole surge arrester with service life indicator for TT and TN-S systems ( 3+1 circuit) DEHNguard T H LI: Single-pole surge arrester with service life indicator The single- and multipole surge arresters of the DEHNguard... H LI family provide maximum safety and easy application and set new standards in surge protection. With Pro-Active Thermo Control, they are the first intelligent surge arresters warning the user against upcoming failures of the surge protection system. With this technology, the brandnew SPD controlling device comes up to the more and more increasing requirements on the availability of electrical systems in industrial, commercial and private environments. The 3-stage visual indicator, coupled with a floating changeover contact for remote signalling, always informs about the readiness for operation of the SPD. If there is a risk coming up of irreversible damage to the structure of the varistor due to an increased energy load, the yellow indicator and the activated remote signalling device recommend the user to replace the surge protection module before the installation is unprotected! Like the well-known DEHNguard family, the application-orientated type designation makes the choice of products of the complete prewired units considerably easier. Less installation errors and simultaneous saving of installation work are unbeatable advantages for the customer. Both the triple controlling unit of each circuit with Pro-Active Thermo Control and the coding of the pluggable protection modules set by the manufacturer characterise the maximum safety of the devices. Damage caused by wrong subsequent assembly by the installer or the user, is unlikely. With DEHNguard T H LI, the operator is also provided with a single-pole type for universal use. All types of DEHNguard... H LI have a 3-pole terminal for remote signalling. As the remote signalling contact is a floating changeover contact, the remote signal can be used as a make or break contact, according to circuit concept. All surge arresters of the DEHNguard... H LI family have multifunctional terminals for connecting conductors and busbars for easy wiring with other DIN rail mountable devices. Yellow phase: Exchange of the protection module recommended 77

DEHNguard... H LI DEHNguard TNC H... LI... SURGE ARRESTERS TYPE 2 950 160 DG TNC H230 400 LI PEN DG TNC H230 400 LI 950 160 12 11 14 L1 L2 L3 Basic circuit diagram DG TNC H230 400 LI Dimension drawing DG TNC H230 400 LI DG TNC H LI: Multi-pole surge arrester for TN-C systems with Pro-Active Thermo Control SPD controlling device with 3-stage visual indicator. DG TNC H230 400 LI SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Nominal ac voltage 230/400 V 275 V Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 65 ka Voltage protection level U P 1.25 kv Voltage protection level at 5 ka U P 1 kv Response time t A 25 ns Max. mains-side overcurrent protection 160 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 20 ka rms TOV voltage U T 335 V / 5 sec. Operating temperature range -40 C...+60 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 3 mods., DIN 43880 Approvals, Certifications KEMA Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Indication of disconnector green-yellow-red Type DG TNC H230 400 LI Part No. 950 160 Packing unit 1 pc(s) Accessory Part for DEHNguard... H LI Varistor-Based Protection Module with Pro-Active Thermo Control 950 130 T H 275 LI T H 275 LI 950 130 Type T H 275 LI Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 65 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. T H 275 LI 1 950 130 78

950 170 DG TNS H230 400 LI SURGE ARRESTERS TYPE 2 DEHNguard... H LI DEHNguard TNS H LI DG TNS H230 400 LI 950 170 PE 12 11 14 L1 L2 L3 N Dimension drawing DG TNS H230 400 LI Basic circuit diagram DG TNS H 230 400 LI DG TNS H LI: Multi-pole surge arrester for TN-S systems with Pro-Active Thermo Control SPD controlling device with 3-stage visual indicator DG TNS H230 400 LI SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Nominal ac voltage 230/400 V 275 V Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 65 ka Voltage protection level U P 1.25 kv Voltage protection level at 5 ka U P 1 kv Response time t A 25 ns Max. mains-side overcurrent protection 160 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 20 ka rms TOV voltage U T 335 V / 5 sec. Operating temperature range -40 C...+60 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 4 mods., DIN 43880 Approvals, Certifications KEMA Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Indication of disconnector green-yellow-red Type DG TNS H230 400 LI Part No. 950 170 Packing unit 1 pc(s) Accessory Part for DEHNguard... H LI Varistor-Based Protection Module with Pro-Active Thermo Control Type T H 275 LI Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 65 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. T H 275 LI 1 950 130 950 130 T H 275 LI T H 275 LI 950 130 79

DEHNguard... H LI DEHNguard TT H LI SURGE ARRESTERS TYPE 2 950 150 DG TT H230 400 LI PE DG TT H230 400 LI 950 150 12 11 14 L1 L2 L3 N Basic circuit diagram DG TT H230 400 LI Dimension drawing DG TT H230 400 LI DG TT H LI: Multipole surge arrester with Pro-Active Thermo Control SPD controlling device and 3-stage visual indicator for TT and TN-S systems ( 3+1 circuit) DG TT H230 400 LI SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Nominal ac voltage 230/400 V Max. continuous ac voltage [L-N] 275 V Max. continuous ac voltage [N-PE] 255 V Nominal discharge current (8/20 μs) [L-N] 20 ka Nominal discharge current (8/20 μs) [N-PE] 40 ka Max. discharge current (8/20 μs) I max 65 ka Lightning impulse current (10/350 μs) [N-PE] 12 ka Voltage protection level [L-N] 1.25 kv Voltage protection level [L-N] at 5 ka 1 kv Voltage protection level [N-PE] 1.5 kv Follow current extinguishing capability [N-PE] 100 A rms Response time [L-N] 25 ns Response time [N-PE] 100 ns Max. mains-side overcurrent protection 160 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 20 ka rms TOV voltage [L-N] 335 V / 5 sec. TOV voltage [N-PE] 1200 V / 200 ms Operating temperature range -40 C...+60 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 4 mods., DIN 43880 Approvals, Certifications KEMA Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Indication of disconnector green-yellow-red Type DG TT H230 400 LI Part No. 950 150 Packing unit 1 pc(s) Varistor-Based Protection Module with Pro-Active Thermo Control 950 130 T H 275 LI T H 275 LI 950 130 Type T H 275 LI Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 65 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. T H 275 LI 1 950 130 N-PE Spark-Gap-Based Protection Module 900 216 T C H 255 T C H 255 900 216 Type T C H 255 Nominal discharge current (8/20 μs) I n 40 ka Max. discharge current (8/20 μs) I max 65 ka 255 V PU Part Type pc(s) No. T C H 255 1 900 216 80

950 120 DG T H 275 LI SURGE ARRESTERS TYPE 2 DEHNguard... H LI DEHNguard T H LI DG T H 275 LI 950 120 12 11 14 Dimension drawing DG T H 275 LI Basic circuit diagram DG T H 275 LI DG T H LI: Single-pole, pluggable surge arrester with Pro-Active Thermo Control SPD controlling device with 3-stage visual indicator DG T H 275 LI SPD according to EN 61643-11 SPD according to IEC 61643-1 Nominal ac voltage Nominal discharge current (8/20 μs) I n Max. discharge current (8/20 μs) I max Voltage protection level U P Voltage protection level at 5 ka U P Response time t A Max. mains-side overcurrent protection Short circuit withstand capability at max. mains-side overcurrent protection TOV voltage U T Operating temperature range Cross-sectional area (min.) Cross-sectional area (max.) Class II 230 V 275 V 20 ka 65 ka 1.25 kv 1 kv 25 ns 160 A gl/gg 20 ka rms 335 V / 5 sec. -40 C...+60 C 1.5 mm 2 solid/flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 1 mod., DIN 43880 Approvals, Certifications Type of remote signalling contact Switching capacity ac Switching capacity dc Cross-sectional area for remote signalling terminals Indication of disconnector Type KEMA changeover contact 250 V/0.5 A 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A max. 1.5 mm 2 solid/flexible green-yellow-red DG T H 275 LI Part No. 950 120 Packing unit 1 pc(s) Accessory Part for DEHNguard... H LI Varistor-Based Protection Module with Pro-Active Thermo Control Type T H 275 LI Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 65 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. T H 275 LI 1 950 130 950 130 T H 275 LI T H 275 LI 950 130 81

Multipole DEHNguard Multipole Surge Arrester Complete prewired unit for common system configurations, consisting of a base part and plug-in protection modules Energy-coordinated within the Red/Line product familiy High discharge capacity due to powerful zinc oxide varistors/spark gaps Reliable control due to Thermo Dynamic Control disconnector Fault indication by red mark in the inspection window Multifunctional terminals for connecting conductors and busbars SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11; SPD Class II according to IEC 61643-1; For protection of low voltage consumer s installations against surges. For use in the lightning protection zones concept at boundaries 0 B 1 and higher. DEHNguard TNC 230/400: Multipole surge arrester for TN-C systems DEHNguard TNS 230/400: Multipole surge arrester for TN-S systems DEHNguard TT 230/400: Multipole surge arrester for TT and TN-S systems ( 3+1 circuit) DEHNguard IT 500: Multipole surge arrester for IT systems without integrated neutral conductor with 500 V phase-to-phase voltage DEHNguard TN 230: Multipole surge arrester for 230 V TN systems DEHNguard TT 230: Multipole surge arrester for 230 V TT and TN systems ( 1+1 circuit) DEHNguard... FM: With remote signalling contact for control device (floating changeover contact) The multipole surge arresters of the DEHNguard TNC /... TNS /... TT /... IT product family provide maximum safety and easy application. The application-orientated product designation makes it considerably easier to choose the right complete prewired unit. Reduced installation mistakes and work are unbeatable advantages for customers. Both the dual monitoring unit for each circuit with Thermo Dynamic Control and the code of the plug-in protection modules preset by the manufacturer characterise the high reliability and safety of the equipment. Damage caused by subsequent installation mistakes of the installer or operator is unlikely. Apart from measuring the surface temperature of the high-capacity varistor, the Thermo Dynamic Control monitoring and disconnection device also evaluates the intensity of the discharge currents. This ensures that the surge arrester changes not only to a safe and isolated state in case of standard overloads but also remains safe if the device parameters are significantly exceeded. Apart from the standard visual indication with green and red marks, types DEHNguard... FM provide a 3-pole terminal for remote signalling. As the remote signalling contact works also as a floating changeover contact, the remote signal can be used as a break or make contact according to circuit concept. The surge arresters of the DEHNguard TNC /... TNS /... TT /... IT family provide multifunctional terminals for connection of conductors and busbars for easy wiring with other DIN rail mounted devices. 82

900 510 DG TNC 230 400 900 540 DG TNC 230 400 FM SURGE ARRESTERS TYPE 2 Multipole DEHNguard DEHNguard TNC DG TNC 230 400 DEHNguard TNC, 3-pole 900 510 DG TNC 230 400 FM DEHNguard TNC FM, 3-pole 900 540 PEN 12 11 14 L1 L2 L3 Dimension drawing DG TNC 230 400 (FM) Basic circuit diagram DG TNC 230 400 FM DG TNC 230 400 (FM): Surge arrester for TN-C systems DG TNC 230 400 DG TNC 230 400 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230/400 V 230/400 V 275 V 275 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Voltage protection level U P 1.25 kv 1.25 kv Voltage protection level at 5 ka U P 1 kv 1 kv Response time t A 25 ns 25 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 3 mods., DIN 43880 3 mods., DIN 43880 Approvals, Certifications KEMA, VDE, UL KEMA, VDE, UL Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG TNC 230 400 DG TNC 230 400 FM Part No. 900 510 900 540 Packing unit 1 pc(s) 1 pc(s) Accessory Part for Multipole DEHNguard 900 670 T 275 Varistor-Based Protection Module T 275 ÜS-Modul für DEHNguard T, 275 V 900 670 Type T 275 Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. T 275 1 900 670 83

Multipole DEHNguard DEHNguard TNS SURGE ARRESTERS TYPE 2 900 530 DG TNS 230 400 900 560 DG TNS 230 400 FM PE DG TNS 230 400 DEHNguard TNS, 4-pole 900 530 DG TNS 230 400 FM DEHNguard TNS FM, 4-pole 900 560 12 11 14 L1 L2 L3 N Basic circuit diagram DG TNS 230 400 FM Dimension drawing DG TNS 230 400 (FM) DG TNS 230 400 (FM): Surge arrester for TN-S systems DG TNS 230 400 DG TNS 230 400 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230/400 V 230/400 V 275 V 275 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Voltage protection level U P 1.25 kv 1.25 kv Voltage protection level at 5 ka U P 1 kv 1 kv Response time t A 25 ns 25 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 4 mods., DIN 43880 4 mods., DIN 43880 Approvals, Certifications KEMA, VDE, UL KEMA, VDE, UL Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG TNS 230 400 DG TNS 230 400 FM Part No. 900 530 900 560 Packing unit 1 pc(s) 1 pc(s) Accessory Part for Multipole DEHNguard 900 670 T 275 Varistor-Based Protection Module T 275 ÜS-Modul für DEHNguard T, 275 V 900 670 Type T 275 Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. T 275 1 900 670 84

900 520 DG TT 230 400 900 550 DG TT 230 400 FM SURGE ARRESTERS TYPE 2 Multipole DEHNguard DEHNguard TT DG TT 230 400 DEHNguard TT, 4-pole 900 520 DG TT 230 400 FM DEHNguard TT FM, 4-pole 900 550 PE 12 11 14 L1 L2 L3 N Dimension drawing DG TT 230 400 (FM) Basic circuit diagram DG TT 230 400 FM DG TT 230 400 (FM): Surge arrester for TT- and TN-S systems ( 3+1 circuit) DG TT 230 400 DG TT 230 400 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230/400 V 230/400 V Max. continuous ac voltage [L-N] U C 275 V 275 V Max. continuous ac voltage [N-PE] U C 255 V 255 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Lightning impulse current (10/350 μs) [N-PE] I imp 12 ka 12 ka Voltage protection level [L-N] U P 1.25 kv 1.25 kv Voltage protection level [L-N] at 5 ka U P 1 kv 1 kv Voltage protection level [N-PE] U P 1.5 kv 1.5 kv Follow current extinguishing capability [N-PE] I fi 100 A rms 100 A rms Response time [L-N] t A 25 ns 25 ns Response time [N-PE] t A 100 ns 100 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms TOV voltage [L-N] U T 335 V / 5 sec. 335 V / 5 sec. TOV voltage [N-PE] U T 1200 V / 200 ms 1200 V / 200 ms Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 4 mods., DIN 43880 4 mods., DIN 43880 Approvals, Certifications KEMA, VDE, UL KEMA, VDE, UL Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG TT 230 400 DG TT 230 400 FM Part No. 900 520 900 550 Packing unit 1 pc(s) 1 pc(s) Accessory Part for Multipole DEHNguard N-PE Spark-Gap-Based Protection Module Type T C 255 Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 40 ka 255 V PU Part Type pc(s) No. T C 255 1 900 134 900 134 T C 255 T C 255 ÜS-Modul N-PE für DGP C T 900 134 Accessory Part for Multipole DEHNguard 900 670 T 275 Varistor-Based Protection Module T 275 ÜS-Modul für DEHNguard T, 275 V 900 670 Type T 275 Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. T 275 1 900 670 85

Multipole DEHNguard DEHNguard IT SURGE ARRESTERS TYPE 2 900 516 DG IT 500 900 546 DG IT 500 FM PE DG IT 500 DEHNguard IT, 3-pole 900 516 DG IT 500 FM DEHNguard IT FM, 3-pole 900 546 12 11 14 L1 L2 L3 Basic circuit diagram DG IT 500 FM Dimension drawing DG IT 500 (FM) DG IT 500 (FM): Surge arrester for IT systems with 500 V phase-to-phase voltage DG IT 500 DG IT 500 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 500 V 500 V 600 V 600 V Nominal discharge current (8/20 μs) I n 15 ka 15 ka Max. discharge current (8/20 μs) I max 30 ka 30 ka Voltage protection level U P 2.5 kv 2.5 kv Voltage protection level at 5 ka U P 2.0 kv 2.0 kv Response time t A 25 ns 25 ns Max. mains-side overcurrent protection 100 A gl/gg 100 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 25 ka rms 25 ka rms TOV voltage U T 600 V / 5 sec. 600 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 3 mods., DIN 43880 3 mods., DIN 43880 Approvals, Certifications KEMA, VDE, UL KEMA, VDE, UL Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG IT 500 DG IT 500 FM Part No. 900 516 900 546 Packing unit 1 pc(s) 1 pc(s) Accessory Part for Multipole DEHNguard 900 671 T 600 T 600 ÜS-Modul für DEHNguard T, 600 V 900 671 Varistor-Based Protection Module Type T 600 Nominal discharge current (8/20 μs) I n 15 ka 600 V Max. continuous dc voltage U C 600 V PU Part Type pc(s) No. T 600 1 900 671 86

900 506 DG TN 230 900 507 DG TN 230 FM SURGE ARRESTERS TYPE 2 Multipole DEHNguard DEHNguard TN 230 DG TN 230 DEHNguard TN, 2-pole, 230 V 900 506 DG TN 230 FM DEHNguard TN FM, 2-pole, 230 V 900 507 PE 12 11 14 L N Dimension drawing DG TN 230 (FM) Basic circuit diagram DG TN 230 FM DG TN 230 (FM): Surge arrester for single-phase 230 V TN systems DG TN 230 DG TN 230 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230 V 230 V 275 V 275 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Voltage protection level U P 1.25 kv 1.25 kv Voltage protection level at 5 ka U P 1 kv 1 kv Response time t A 25 ns 25 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 2 mods., DIN 43880 2 mods., DIN 43880 Approvals, Certifications KEMA, VDE, UL KEMA, VDE, UL Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG TN 230 DG TN 230 FM Part No. 900 506 900 507 Packing unit 1 pc(s) 1 pc(s) Accessory Part for Multipole DEHNguard 900 670 T 275 Varistor-Based Protection Module T 275 ÜS-Modul für DEHNguard T, 275 V 900 670 Type T 275 Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. T 275 1 900 670 87

Multipole DEHNguard DEHNguard TT 230 SURGE ARRESTERS TYPE 2 900 508 DG TT 230 900 509 DG TT 230 FM PE DG TT 230 DEHNguard TT, 2-pole 900 508 DG TT 230 FM DEHNguard TT FM, 2-pole 900 509 12 11 14 L N Basic circuit diagram DG TT 230 FM Dimension drawing DG TT 230 (FM) DG TT 230 (FM): Surge arrester for single-phase 230 V TT and TN systems ( 1+1 circuit) DG TT 230 DG TT 230 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230 V 230 V Max. continuous ac voltage [L-N] U C 275 V 275 V Max. continuous ac voltage [N-PE] U C 255 V 255 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Lightning impulse current (10/350 μs) [N-PE] I imp 12 ka 12 ka Voltage protection level [L-N] U P 1.25 kv 1.25 kv Voltage protection level [L-N] at 5 ka U P 1 kv 1 kv Voltage protection level [N-PE] U P 1.5 kv 1.5 kv Follow current extinguishing capability [N-PE] ac I fi 100 A rms 100 A rms Response time [L-N] t A 25 ns 25 ns Response time [N-PE] t A 100 ns 100 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms TOV voltage [L-N] U T 335 V / 5 sec. 335 V / 5 sec. TOV voltage [N-PE] U T 1200 V / 200 ms 1200 V / 200 ms Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 2 mods., DIN 43880 2 mods., DIN 43880 Approvals, Certifications KEMA, VDE, UL KEMA, VDE, UL Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG TT 230 DG TT 230 FM Part No. 900 508 900 509 Packing unit 1 pc(s) 1 pc(s) 900 670 T 275 T 275 ÜS-Modul für DEHNguard T, 275 V 900 670 Varistor-Based Protection Module Type T 275 Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. T 275 1 900 670 N-PE Spark-Gap-Based Protection Module 900 134 T C 255 T C 255 TC Protection Module, 255 V 900 134 Type T C 255 Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 40 ka 255 V PU Part Type pc(s) No. T C 255 1 900 134 88

SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11 SPD Class II according to IEC 61643-1 For protection of low voltage consumer s installations against surges. For use in the lightning protection zones concept at boundaries 0 B 1 and higher. DEHNguard T / DEHNguard T FM Single-pole, pluggable Surge Arrester High discharge capacity due to powerful zinc oxide varistor Quick response Two-part unit, consisting of a base part and plug-in protection component Reliable control due to Thermo Dynamic Control disconnector Energy-coordinated within the Red/Line product family Fault indication by red mark in the inspection window Small design (modular construction) according to DIN 43880 Multifunctional terminals for connection of conductors and busbars DEHNguard T: Surge arrester, consisting of base part and plug-in protection module DEHNguard T FM: With remote signalling contact for control device (floating changeover contact) The pluggable DEHNguard T surge arresters are real all-rounders. Whether in single-phase systems, in dc power supplies or at high system voltages there is always the right arrester for every kind of application. The multifunctional terminals supply the devices with an almost unlimited flexibility for connection with each other, but also with other DIN rail mounted devices in the same distribution board. Not only flexibility characterises the DEHNguard T family. Moreover, it is the striking performance parameters setting trends all over the world: High discharge capacity, low voltage protection level and the dual safe Thermo Dynamic Control disconnector define the high reliability of the devices. Especially the DEHN-specific Thermo Dynamic Control disconnector ensures the arresters to change to a safe isolated state even at extreme overloads. Apart from the surface temperature of the high-capacity varistor, the intensity of the discharge current is also evaluated. Apart from the standard visual indication with green and red coloured marks, the DEHNguard T... FM types have a 3-pole terminal for remote signalling. As the remote signalling contact works also as a floating changeover contact, the remote signal can be used as a break or make contact according to circuit concept. Should, nevertheless, the varistor unit be overloaded despite of the high discharge capacity of the DEHNguard T devices, its two-part design allows for easy exchange of the protection module without tools. 89

DEHNguard T / DEHNguard T FM DEHNguard T SURGE ARRESTERS TYPE 2 900 654 DG T 75 900 653 DG T 150 900 650 DG T 275 900 652 DG T 320 900 641 DG T 385 900 655 DG T 440 900 651 DG T 600 DG T 75 DEHNguard T, 75 V 900 654 DG T 150 DEHNguard T, 150 V 900 653 DG T 275 DEHNguard T, 275 V 900 650 DG T 320 DEHNguard T, 320 V 900 652 DG T 385 DEHNguard T, 385 V 900 641 DG T 440 DEHNguard T, 440 V 900 655 DG T 600 DEHNguard T, 600 V 900 651 Basic circuit diagram DG T... Dimension drawing DG T... DG T...: Single-pole, pluggable surge arrester, consisting of a base part and plug-in protection module DG T 75 DG T 150 DG T 275 DG T 320 DG T 385 DG T 440 DG T 600 SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Class II Class II Class II Class II Class II 75 V 150 V 275 V 320 V 385 V 440 V 600 V Max. continuous dc voltage U C 100 V 200 V 350 V 420 V 500 V 585 V 600 V Nominal discharge current (8/20 μs) I n 10 ka 15 ka 20 ka 20 ka 20 ka 20 ka 15 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka 40 ka 40 ka 40 ka 40 ka 30 ka Voltage protection level U P 0.4 kv 0.7 kv 1.25 kv 1.5 kv 1.75 kv 2 kv 2.5 kv Voltage protection level at 5 ka U P 0.35 kv 0.55 kv 1 kv 1.2 kv 1.35 kv 1.7 kv 2 kv Response time t A 25 ns 25 ns 25 ns 25 ns 25 ns 25 ns 25 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg 125 A gl/gg 125 A gl/gg 125 A gl/gg 125 A gl/gg 100 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms 50 ka rms 25 ka rms 25 ka rms 25 ka rms 25 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C -40 C...+80 C -40 C...+80 C -40 C...+80 C -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) Cross-sectional area (max.) 1.5 mm 2 solid/flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic UL 94 V-0 Degree of protection IP 20 IP 20 IP 20 IP 20 IP 20 IP 20 IP 20 Dimension 1 mod., DIN 43880 1 mod., DIN 43880 1 mod., DIN 43880 1 mod., DIN 43880 1 mod., DIN 43880 1 mod., DIN 43880 1 mod., DIN 43880 Approvals, Certifications KEMA, VDE, UL KEMA, VDE, UL KEMA, VDE, UL KEMA, VDE UL KEMA, VDE, UL KEMA, VDE, UL KEMA, VDE, UL Type DG T 75 DG T 150 DG T 275 DG T 320 DG T 385 DG T 440 DG T 600 Part No. 900 654 900 653 900 650 900 652 900 641 900 655 900 651 Packing unit 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) Accessory Part for DEHNguard T / DEHNguard T FM Varistor-Based Protection Module 900 674 T 75 900 673 T 150 900 670 T 275 900 672 T 320 900 679 T 385 900 675 T 440 900 671 T 600 T 75 für DEHNguard T 150 T T T T T 600 für DEHNguard Type T 75 T 150 T 275 T 320 T 385 T 440 T 600 Nominal discharge current T, 75 V ÜS-Modul 900 674 ÜS-Modul (8/20 μs) I n 10 ka 15 ka 20 ka 20 ka 20 ka für DEHNguard T, 150 V 275 für DEHNguard T, 275 V 320 20 ka 900 673 ÜS-Modul 900 670 15 ÜS-Modul ka 75 V 150 V 275 V 320 V 385 V für DEHNguard T, 320 V 385 für DEHNguard T, 385 V 440 440 V für DEHNguard T, 440 V 900 672 ÜS-Modul 900 679 600 ÜS-Modul V 900 675 Max. continuous dc voltage U C 100 V 200 V 350 V 420 V 500 V T, 600 V 585 V ÜS-Modul 900 671 600 V PU Part Type pc(s) No. T 75 1 900 674 T 150 1 900 673 T 275 1 900 670 T 320 1 900 672 T 385 1 900 679 T 440 1 900 675 T 600 1 900 671 90

900 684 DG T 75 FM 900 683 DG T 150 FM 900 680 DG T 275 FM 900 682 DG T 320 FM 900 691 DG T 385 FM 900 685 DG T 440 FM 900 681 DG T 600 FM SURGE ARRESTERS TYPE 2 DEHNguard T / DEHNguard T FM DEHNguard T FM DG T 75 FM DEHNguard T FM, 75 V 900 684 DG T 150 FM DEHNguard T FM, 150 V 900 683 DG T 275 FM DEHNguard T FM, 275 V 900 680 DG T 320 FM DEHNguard T FM, 320 V 900 682 DG T 385 FM DEHNguard T FM, 385 V 900 691 DG T 440 FM DEHNguard T FM, 440 V 900 685 DG T 600 FM DEHNguard T FM, 600 V 900 681 12 11 14 Dimension drawing DG T... FM Basic circuit diagram DG T... FM DG T... FM: Single-pole, pluggable surge arrester, consisting of a base part and plug-in protection module; with floating remote signalling contact DG T 75 FM DG T 150 FM DG T 275 FM DG T 320 FM DG T 385 FM DG T 440 FM DG T 600 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Class II Class II Class II Class II Class II 75 V 150 V 275 V 320 V 385 V 440 V 600 V Max. continuous dc voltage U C 100 V 200 V 350 V 420 V 500 V 585 V 600 V Nominal discharge current (8/20 μs) I n 10 ka 15 ka 20 ka 20 ka 20 ka 20 ka 15 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka 40 ka 40 ka 40 ka 40 ka 30 ka Voltage protection level U P 0.4 kv 0.7 kv 1.25 kv 1.5 kv 1.75 kv 2 kv 2.5 kv Voltage protection level at 5 ka U P 0.35 kv 0.55 kv 1 kv 1.2 kv 1.35 kv 1.7 kv 2 kv Response time t A 25 ns 25 ns 25 ns 25 ns 25 ns 25 ns 25 ns Max. mains-side overcurrent protection 125 A gl/gg 125 A gl/gg 125 A gl/gg 125 A gl/gg 125 A gl/gg 125 A gl/gg 100 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 50 ka rms 50 ka rms 50 ka rms 25 ka rms 25 ka rms 25 ka rms 25 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C -40 C...+80 C -40 C...+80 C -40 C...+80 C -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) Cross-sectional area (max.) 1.5 mm 2 solid/flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 IP 20 IP 20 IP 20 IP 20 IP 20 Dimension 1 mod., DIN 43880 1 mod., DIN 43880 1 mod., DIN 43880 1 mod., DIN 43880 1 mod., DIN 43880 1 mod., DIN 43880 1 mod., DIN 43880 Approvals, Certifications KEMA, VDE, UL KEMA, VDE, UL KEMA, VDE, UL KEMA, VDE, UL KEMA, VDE, UL KEMA, VDE, UL KEMA, VDE, UL Type of remote signalling contact Switching capacity ac Switching capacity dc Cross-sectional area for remote signalling terminals changeover contact 250 V/0.5 A 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A max. 1.5 mm 2 solid/flexible Type DG T 75 FM DG T 150 FM DG T 275 FM DG T 320 FM DG T 385 FM DG T 440 FM DG T 600 FM Part No. 900 684 900 683 900 680 900 682 900 691 900 685 900 681 Packing unit 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) Accessory Part for DEHNguard T / DEHNguard T FM Varistor-Based Protection Module Type T 75 T 150 T 275 T 320 T 385 T 440 T 600 Nominal discharge current (8/20 μs) I n 10 ka 15 ka 20 ka 20 ka 20 ka 20 ka 15 ka 75 V 150 V 275 V 320 V 385 V 440 V 600 V Max. continuous dc voltage U C 100 V 200 V 350 V 420 V 500 V 585 V 600 V PU Part Type pc(s) No. T 75 1 900 674 T 150 1 900 673 T 275 1 900 670 T 320 1 900 672 T 385 1 900 679 T 440 1 900 675 T 600 1 900 671 900 674 T 75 900 673 T 150 900 670 T 275 900 672 T 320 900 679 T 385 900 675 T 440 900 671 T 600 T 75 DGT Surge Protection Module, 75 V 900 674 T 150 DGT Surge Protection Module, 150 V 900 673 T 275 DGT Surge protection Module, 275 V 900 670 T 320 DGT Surge Protection Module, 320 V 900 672 T 385 DGT Surge Protection Module, 385 V 900 679 T 440 DGT Surge Protection Module, 440 V 900 675 T 600 DGT Surge Protection Module, 600 V 900 671 91

DEHNguard Y PV Multi-pole Surge Arrester for SURGE ARRESTERS TYPE 2 Photovoltaic Systems SPD according to EN 61643-11 SPD Class II according to IEC 61643-1 Complete prewired unit for photovoltaic systems, consisting of a base part and plug-in protection modules Fault-resistant Y circuit with 3 highcapacity varistors, avoids damage to the surge protection at insulation faults in the generator circuit For use in accordance with IEC 60364-7- 712 Electrical installations of buildings Part 7-712: Requirements for special installations or locations; Solar photovoltaic (PV) power supply systems High discharge capacity due to powerful zinc oxide varistors Reliable control due to Thermo Dynamic Control disconnector Fault indication by red mark in the inspection window For protection of low voltage consumer s installations against surges. For use according to IEC 60364-7-712:2002-05 Electrical installations of buildings Part 7-712: Requirements for special installations or locations; Solar photovoltaic (PV) power supply systems. DEHNguard Y PV 1000: Complete unit for photovoltaic systems with U OC STC 1000 V dc DEHNguard Y PV 1000 FM: With remote signalling contact for control device (floating changeover contact) The multipole surge arresters DEHNguard Y PV 1000 (FM) pass approved DEHNguard safety to the field of photovoltaic power generating plants. Both the dual monitoring unit for each circuit with Thermo Dynamic Control and the code of the plug-in protection modules set by the manufacturer characterise the high reliability of the equipment. Damage caused by subsequent installation errors of the installer or operator is unlikely. Apart from the surface temperature of the high-capacity varistor, the Thermo Dynamic Control monitoring and disconnection device evaluates also the intensity of the discharge currents. This ensures the arrester not to change into a safe and isolated state at standard overloads only, but to remain safe as well, if the device parameters are significantly exceeded. The fault-resistant Y circuit with 3 high-capacity varistors avoids damage to the surge protection at isolation faults in the circuit of the photovoltaic generator. Apart from the standard visual indication with green and red marks, type DEHNguard Y PV 1000 FM provides a 3-pole terminal for remote signalling. As the remote signalling contact works also as a floating changeover contact, the remote signal can be used as a break or make contact, according to circuit concept. The surge arresters of the DEHNguard Y PV product family provide multifunctional terminals for connection of conductors and busbars for easy wiring with other DIN rail mounted devices. 92

900 517 DG Y PV 1000 900 547 DG Y PV 1000 FM SURGE ARRESTERS TYPE 2 DEHNguard Y PV DEHNguard Y PV (FM) DG Y PV 1000 DEHNguard Y PV 900 517 DG Y PV 1000 FM DEHNguard Y PV 900 547 12 11 14 L+ L Dimension drawing DG Y PV 1000 (FM) Basic circuit diagram DG Y PV 1000 FM DG Y PV 1000...: Complete circuit for photovoltaic systems with U OC STC 1000 V dc DG Y PV 1000 DG Y PV 1000 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II PV voltage acc. to IEC 60364-7-712 U OC STC 1000 V 1000 V Max. continuous dc voltage [(L+/L-) > PE] U c 500 V 500 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Voltage protection level U P 4 kv 4 kv Voltage protection level at 5 ka U P 3.5 kv 3.5 kv Response time t A 25 ns 25 ns Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 3 mods., DIN 43880 3 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.1 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG Y PV 1000 DG Y PV 1000 FM Part No. 900 517 900 547 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNguard Y PV Varistor-Based Protection Module Type T 440 Nominal discharge current (8/20 μs) I n 20 ka 440 V Max. continuous dc voltage U C 585 V PU Part Type pc(s) No. T 440 1 900 675 900 675 T 440 T 440 DGT Surge Protection Module, 440 V 900 675 93

DEHNguard / DEHNguard... FM Single-pole, compact Surge Arrester SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11; SPD Class II according to IEC 61643-1; High discharge capacity due to powerful zinc oxide varistor Quick response Reliable control due to Thermo Dynamic Control disconnector Energy-coordinated within the Red/Line product family Fault indication by red mark in the inspection window For protection of low voltage consumer s installations against surges. For use in the lightning protection zones concept at boundaries 0 B 1 and higher. DEHNguard 275: Single-pole, compact surge arrester with rated voltage U C = 275 V ac DEHNguard 1000: Single-pole, compact surge arrester with rated voltage U C = 1000 V ac DEHNguard... FM: With remote signalling contact for controlling device (floating changeover contact) With rated voltages of 275 V and 1000 V, the user is supplied with compact and powerful surge arresters of the DEHNguard product family. With their design as single-pole devices, these surge arresters are suitable for universal use. Not only the flexibility characterises the DEHNguard family, but especially the distinctive performance parameters, setting trends worldwide: High discharge capacity, low voltage protection level and the dual controlling and disconnecting device Thermo Dynamic Control stand for maximum system reliability. Especially the DEHN-specific Thermo Dynamic Control disconnector ensures the arresters to change to a safe isolated state even at extreme overloads. Apart from the surface temperature of the high-capacity varistor, also the intensity of the discharge current is evaluated. Also the external design of the device is adapted completely to the application field. DEHNguard 1000 (FM), 2 mods. wide, fulfils entirely all mechanical requirements resulting from the high system voltages. Apart from the standard visual indicator with green and red marks, the types of DEHNguard... FM have a 3-pole terminal for remote signalling. As the remote signalling contact works as a floating changeover contact, the remote signal can be used as a break or make contact, according to circuit concept. For earth-side installation of DEHNguard (FM) devices, earthing bracket type EB DG 1000 1 3 can be used. 94

900 600 DG 275 900 620 DG 275 FM SURGE ARRESTERS TYPE 2 DEHNguard / DEHNguard... FM DEHNguard 275 (FM) DG 275 DEHNguard, 275 V 900 600 DG 275 FM DEHNguard FM, 275 V 900 620 12 11 14 Dimension drawing DG 275 FM Basic circuit diagram DG 275 FM DG 275 (FM): Single-pole, compact surge arrester with rated voltage U C = 275 V ac DG 275 DG 275 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II 275 V 275 V Max. continuous dc voltage U C 350 V 350 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 40 ka Voltage protection level U p 1.25 kv 1.25 kv Voltage protection level at 5 ka U P 1 kv 1 kv Response time t A 25 ns 25 ns Max. backup fuse 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. backup fuse 50 ka rms 50 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1,5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 1 mod., DIN 43880 1 mod., DIN 43880 Approvals, Certifications KEMA, VDE, UL KEMA, VDE, UL Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG 275 DG 275 FM Part No. 900 600 900 620 Packing unit 1 pc(s) 1 pc(s) 95

DEHNguard / DEHNguard... FM DEHNguard 1000 (FM) SURGE ARRESTERS TYPE 2 950 102 DG 1000 950 112 DG 1000 FM DG 1000 950 102 DG 1000 FM 950 112 12 11 14 Basic circuit diagram DG 1000 FM Dimension drawing DG 1000 FM DG 1000 (FM): Single-pole compact surge arrester with rated voltage U C = 1000 V ac DG 1000 DG 1000 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II 1000 V 1000 V Max. continuous dc voltage U C 1000 V 1000 V Nominal discharge current (8/20 μs) I n 15 ka 15 ka Max. discharge current (8/20 μs) I max 30 ka 30 ka Voltage protection level U p 4.2 kv 4.2 kv Voltage protection level at 5 ka U P 3.5 kv 3.5 kv Response time t A 25 ns 25 ns Max. overcurrent protection 100 A am 100 A am Max. overcurrent protection at U 690 V ac 125 A gl/gg 125 A gl/gg Short circuit withstand capability at max. backup fuse 25 ka rms 25 ka rms Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 2 mods., DIN 43880 2 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DG 1000 DG 1000 FM Part No. 950 102 950 112 Packing unit 1 pc(s) 1 pc(s) 1 3 EB DG 1000 1 3 900 411 Accessory Part for DEHNguard / DEHNguard... FM 900 411 EB DG 1000 EB DG 3-pole, single-phase unit For earth-side bridging of 3 or 4 DEHNguard 1000 (FM) surge arresters PU Part Type Dimension Terminal pc(s) No. EB DG 1000 1 3 34 x 112 x 3 mm up to 25 mm 2 1 900 411 96

SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11; SPD Class II according to IEC 61643-1; DEHNgap C/T N-PE Surge Arrester Especially for use in TT systems in 3+1 or 1+1 circuits according to IEC 60364-5-53 between neutral conductor N and protective conductor PE High discharge capacity Two-part unit, consisting of a base part and a plug-in spark-gap-based protection module Energy-coordinated within the Red/Line product family For protection of low voltage consumer s installations against surges. For use in the lightning protection zones concept at boundaries 0 B 1 and higher. DEHNgap C/T: N-PE surge arrester, consisting of base part and plug-in protection module T C 255 Being a total current arrester between the neutral and protective conductor in TT systems, the single-pole N-PE surge arrester DEHNgap C/T ensures the fulfilment of the protection requirements for protection of persons and material assets by socalled 3+1 or 1+1 circuits. A combination out of approved surge arresters of the DEHNguard and DEHNguard T families shows the flexibility of the multifunctional terminals of DEHNgap C/T. Being designed for connection of conductors and busbars, they allow for system-specific connection in distribution boards. The spark-gap-based surge arrester DEHNgap C/T fulfils the requirements of safe electrical isolation between neutral and protective conductor in TT systems. The high lightning current discharge capacity (10/350 μs) underlines the high safety requirements on the two-part protective device. DEHNgap C/T for indirect shield earthing with shield terminal 97

DEHNgap C/T DEHNgap C/T SURGE ARRESTERS TYPE 2 900 133 DGP C T 255 DGP C T 255 DEHNgap C/T 900 133 Basic circuit diagram DGP C T Dimension drawing DGP C T DGP C T: N-PE Surge Arrester DGP C T 255 SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II 255 V Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 40 ka Follow current extinguishing capability I fi 100 A rms Lightning impulse current (10/350 μs) I imp 12 ka Voltage protection level U P 1.5 kv Response time t A 100 ns TOV voltage U T 1200 V / 200 ms Operating temperature range T U -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 1 mod., DIN 43880 Approvals, Certifications KEMA, ÖVE, VDE, UL Type DGP C T 255 Part No. 900 133 Packing unit 1 pc(s) Accessory Part for DEHNgap C/T 900 134 T C 255 N-PE Spark-Gap-Based Protection Module T C 255 TC Protection Module, 255 V 900 134 Type T C 255 Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 40 ka 255 V PU Part Type pc(s) No. T C 255 1 900 134 98

SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11 SPD Class II according to IEC 61643-1 For protection of low voltage consumer s installations against surges. For use in the lightning protection zones concept at boundaries 0 B 1 and higher. DEHNguard T VA / DEHNguard T VA FM Varistor-/Spark-Gap-Based Surge Arrester Two-part unit, consisting of base part and plug-in protection module High-capacity zinc oxide varistor, control device Thermo Dynamic Control and spark gap in series connection Energy-coordinated within the Red/Line product family Fault indication by red mark in the inspection window Small (modular) design according to DIN 43880 Multifunctional terminals for conductor and busbar connection DEHNguard T... VA: Two-part unit, consisting of base part and plug-in protection module DEHNguard T... VA FM: With remote signalling contact for control device (floating changeover contact) The single-pole DEHNguard T... VA surge arresters complete the approved DEHNguard and DEHNguard T product families. The special series connection of spark gap and varistor module opens up new fields of application. For example, DEHNguard T... VA devices provide reliable protection especially for systems with permanent isolation control. The multifunctional terminals provide the devices with a nearly unlimited flexibility for connection with each other but also with other DIN rail mounted devices in the same distribution board. Not only flexibility characterises the DEHNguard T... VA family but also the striking performance parameters setting trends all over the world: High discharge capacity, low voltage protection level and the dual Thermo Dynamic Control disconnector ensure the high reliability of the devices. Especially the DEHN-specific Thermo Dynamic Control disconnector ensures the arresters to change to a safe state, isolated from the system, even at extreme overloads. In parallel to the surface temperature of the high-capacity varistor, the intensity of the discharge current is also evaluated. Apart from the standard visual indicator with green and red marks, types DEHNguard T VA... FM have a 3-pole terminal for remote signalling. As the remote signalling contact works also as a floating changeover contact, the remote signal can be used as a break or make contact according to circuit concept. 99

DEHNguard T VA / DEHNguard T VA FM DEHNguard T VA SURGE ARRESTERS TYPE 2 900 667 DG T 75 VA 900 659 DG T 275 VA DG T 75 VA DEHNguard T VA, 75 V 900 667 DG T 275 VA DEHNguard T 275 VA, 275 V 900 659 Basic circuit diagram DG T... VA Dimension drawing DG T... VA DG T... VA: Single-pole surge arrester with varistor-/spark-gap-based series connection DG T 75 VA DG T 275 VA SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II 75 V 275 V Max. continuous dc voltage U C 100 V 350 V Nominal discharge current (8/20 μs) I n 10 ka 10 ka Max. discharge current (8/20 μs) I max 20 ka 20 ka Voltage protection level U P 1.5 kv 1.5 kv Response time t A 100 ns 100 ns Max. mains-side overcurrent protection 100 A gl/gg 100 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 25 ka rms 25 ka rms TOV voltage U T 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 1 mod., DIN 43880 1 mod., DIN 43880 Type DG T 75 VA DG T 275 VA Part No. 900 667 900 659 Packing unit 1 pc(s) 1 pc(s) 100

900 692 DG T 75 VA FM 900 689 DG T 275 VA FM SURGE ARRESTERS TYPE 2 DEHNguard T VA / DEHNguard T VA FM DEHNguard T VA FM DG T 75 VA FM DEHNguard T VA FM, 75 V 900 692 DG T 275 VA FM DEHNguard T 275 VA FM, 275 V 900 689 12 11 14 Dimension drawing DG T... VA FM Basic circuit diagram DG T... VA FM DG T... VA FM: Single-pole surge arrester with varistor-/spark-gap-based series connection, with floating remote signalling contact DG T 75 VA FM DG T 275 VA FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II 75 V 275 V Max. continuous dc voltage U C 100 V 350 V Nominal discharge current (8/20 μs) I n 10 ka 10 ka Max. discharge current (8/20 μs) I max 20 ka 20 ka Voltage protection level U P 1.5 kv 1.5 kv Response time t A 100 ns 100 ns Max. mains-side overcurrent protection 100 A gl/gg 100 A gl/gg Short circuit withstand capability at max. mains-side overcurrent protection 25 ka rms 25 ka rms TOV voltage U T 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid/flexible 1.5 mm 2 solid/flexible Cross-sectional area (max.) 35 mm 2 stranded/25 mm 2 flexible 35 mm 2 stranded/25 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 1 mod., DIN 43880 1 mod., DIN 43880 Type of remote signalling contact changeover contact changeover contact Switching capacity ac 250 V/0.5 A 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible max. 1.5 mm 2 solid/flexible Type DG T 75 VA FM DG T 275 VA FM Part No. 900 692 900 689 Packing unit 1 pc(s) 1 pc(s) 101

Protection Module for DEHNguard T / BBA 60 / DEHNgap C/T SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11; SPD Class II according to IEC 61643-1; High discharge capacity due to powerful zinc oxide varistors (T...)/spark gaps (T C...) Reliable control due to device-specific disconnectors Energy-coordinated within the Red/Line product family The plug-in protection module can be exchanged without disconnecting from power supply and without removing the cover plate from the distribution board Fault indication by red mark in the inspection window For protection of low voltage consumer s installations against surges. For use in the lightning protection zones concept at boundaries 0 B 1 and higher. T...: Varistor-based protection module with Thermo Dynamic Control T H...: Varistor-based protection module with Pro-Active Thermo Control T C...: N-PE spark-gap-based protection module The varistor-based protection modules for DEHNguard T and the sparkgap-based protection module of DEHNgap C/T show the synergy between safety and easy application. Should DEHNguard T... / DEHNgap C/T protection modules be overloaded despite of their high performance parameters, they can be removed and exchanged easily without tools. Any wrong assembling is prevented by the coding of the DEHNguard T... / DEHNgap C/T devices and their corresponding protection modules preset by the manufacturer. Of course, also the (spare) protection modules of the DEHNguard T family provide the dual monitoring device and disconnector Thermo Dynamic Control, which ensures the arresters to change to a safe, isolated state even at extreme overloads. In parallel to the surface temperature of the high-capacity varistor, it also evaluates the intensity of discharge currents. The DEHNguard T, BBA 60 and DEHNgap C/T protection modules have removable enclosure lugs, which prevent the protection modules from being removed from current distribution boards with isolated cover (protection level 2) by electrical laypersons. 900 674 T 75 900 673 T 150 900 670 T 275 900 672 T 320 900 679 T 385 900 675 T 440 900 671 T 600 950 204 T 275 BBA Varistor-Based Protection Module with Thermo Dynamic Control T 75 DGT Surge Protection Module, 75 V 900 674 T 150 DGT Surge Protection Module, 150 V 900 673 T 275 DGT Surge protection Module, 275 V 900 670 T 320 DGT Surge Protection Module, 320 V 900 672 T 385 DGT Surge Protection Module, 385 V 900 679 T 440 DGT Surge Protection Module, 440 V 900 675 T 600 DGT Surge Protection Module, 600 V 900 671 T 275 BBA 950 204 Basic circuit diagram of varistor-based protection module Dimension drawing of varistor-based protection module T 75 T 150 T 275 T 320 T 385 T 440 T 600 T 275 BBA Nominal discharge current (8/20 μs) I n 10 ka 15 ka 20 ka 20 ka 20 ka 20 ka 15 ka 20 ka 75 V 150 V 275 V 320 V 385 V 440 V 600 V 275 V Max. continuous dc voltage U C 100 V 200 V 350 V 420 V 500 V 585 V 600 V 350 V Type T 75 T 150 T 275 T 320 T 385 T 440 T 600 T 275 BBA Part No. 900 674 900 673 900 670 900 672 900 679 900 675 900 671 950 204 Packing unit 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 102

950 130 T H 275 LI T H 275 LI 950 130 SURGE ARRESTERS TYPE 2 Protection Module Varistor-Based Protection Module with Pro-Active Thermo Control Dimension drawing of varistor-based protection module with Pro-Active Thermo Control Basic circuit diagram of varistor-based protection module with Pro-Active Thermo Control T H 275 LI Nominal discharge current (8/20 μs) I n Max. discharge current (8/20 μs) I max Max. continuous dc voltage U C 20 ka 65 ka 275 V 350 V Type T H 275 LI Part No. 950 130 Packing unit 1 pc(s) 900 134 T C 255 900 216 T C H 255 950 205 T C 255 BBA T C 255 TC Protection Module, 255 V 900 134 T C H 255 900 216 T C 255 BBA 950 205 N-PE Spark-Gap-Based Protection Module Dimension drawing of N-PE spark-gap-based protection module Basic circuit diagram of N-PE spark-gap-based protection module T C 255 T C H 255 T C 255 BBA Nominal discharge current (8/20 μs) I n 20 ka 40 ka 20 ka Max. discharge current (8/20 μs) I max 40 ka 65 ka 30 ka 255 V 255 V 255 V Type T C 255 T C H 255 T C 255 BBA Part No. 900 134 900 216 950 205 Packing unit 1 pc(s) 1 pc(s) 1 pc(s) 103

BBA 60 Multipole Surge Arrester for SURGE ARRESTERS TYPE 2 60 mm Busbar Systems SPD according to EN 61643-11 SPD Class II according to 61643-1 Prewired surge arrester for 60 mm busbar systems Complete unit consisting of a base part, plug-in surge protection modules and backup fuses Energy-coordinated within the Red/Line product family High discharge capacity due to powerful zinc oxide varistors or zinc oxide varistors/spark gaps Reliable control due to Thermo- Dynamic Control disconnector Fault indication by red mark in the inspection window For protection of low-voltage consumer s installations against surges. For use according to the lightning protection zones concept at boundaries 0 B 1 and higher. BBA 60 3P 275: Complete unit for TN-C systems BBA 60 4P 275: Complete unit for TT and TN-S systems ( 3+1 circuit) BBA 60... 275 FM: With remote signalling contact for control device (floating changeover contact) Following the trend of industrial current distribution systems, surge protection was integrated further more into application panels. With BBA 60... devices, surge protection has its defined position on 60 mm busbar systems. Approved protection modules of the DEHNguard family with Thermo Dynamic Control dual monitoring were connected to one functional unit with the backup fuses, which are often necessary for this application. The surge protective device can be snapped easily onto the busbars without requiring tools. Short installation work and less material are unbeatable advantages of the BBA 60... family. The direct contacting of the BBA 60... surge arresters on the busbars helps to reach an optimum voltage protection level. By using a standard dimension, the BBA 60... surge arresters can be used for any type of 60 mm busbar system with 5 and 10 flat copper rails. The complete prewired unit with only 4.5 modules in width and consisting of surge protection and integrated backup fuse, is available with and without remote signalling device and for 4-wire (TN-C) and 5-wire systems (TN-S and TT). BBA 60...: Complete unit for TN-C systems consisting of surge protection and backup fuse 104

950 200 BBA 60 3P 275 950 201 BBA 60 3P 275 FM SURGE ARRESTERS TYPE 2 BBA 60 BBA 60 3P BBA 60 3P 275 950 200 BBA 60 3P 275 FM 950 201 L1 L2 L3 PEN Dimension drawing BBA 60 3P 275 FM Basic circuit diagram BBA 60 3P 275 BBA 60 3P 275 (FM): Surge arrester to be mounted onto 60 mm busbar systems; with integrated backup fuses for TN-C systems BBA 60 3P 275 BBA 60 3P 275 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230/400 V 230/400 V 275 V 275 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 30 ka 30 ka Voltage protection level U P 1.5 kv 1.5 kv Response time t A 25 ns 25 ns Short-circuit withstand capability 50 ka rms 50 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid 1.5 mm 2 solid Cross-sectional area (max.) 25 mm 2 stranded 25 mm 2 stranded Mounting on 60 mm busbar systems 60 mm busbar systems Enclosure material thermoplastic thermoplastic Degree of protection IP 20 IP 20 Dimension 4.5 mods., DIN 43880 4.5 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type BBA 60 3P 275 BBA 60 3P 275 FM Part No. 950 200 950 201 Packing unit 1 pc(s) 1 pc(s) Accessory Part for BBA 60 Accessory Part for BBA 60 950 206 F D02 BBA D02 Backup Fuse for BBA 60 Devices F PU Part D02 BBA 950 206 Type pc(s) No. F D02 BBA 10 950 206 950 204 T 275 BBA Varistor-Based Protection Module with Thermo Dynamic Control T BBA 204 275 950 Type T 275 BBA Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. T 275 BBA 1 950 204 105

BBA 60 BBA 60 4P SURGE ARRESTERS TYPE 2 950 202 BBA 60 4P 275 950 203 BBA 60 4P 275 FM L1 L2 L3 BBA 60 4P 275 950 202 BBA 60 4P 275 FM 950 203 PE Basic circuit diagram BBA 60 4P 275 N Dimension drawing BBA 60 4P 275 FM BBA 60 4P 275 (FM): Surge arrester for mounting onto 60 mm busbar systems; with integrated backup fuses for TT and TN-S systems ( 3+1 circuit) BBA 60 4P 275 BBA 60 4P 275 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II Nominal ac voltage U N 230/400 V 230/400 V Max. continuous ac voltage [L-N] U C 275 V 275 V Max. continuous ac voltage [N-PE] U C 255 V 255 V Nominal discharge current (8/20 μs) I n 20 ka 20 ka Max. discharge current (8/20 μs) I max 30 ka 30 ka Voltage protection level [L-N] U P 1.5 kv 1.5 kv Voltage protection level [N-PE] U P 1.5 kv 1.5 kv Follow current extinguishing capability [N-PE] I fi 100 A rms 100 A rms Response time [L-N] t A 25 ns 25 ns Response time [N-PE] t A 100 ns 100 ns Short-circuit withstand capability 50 ka rms 50 ka rms TOV voltage [L-N] U T 335 V / 5 sec. 335 V / 5 sec. TOV voltage [N-PE] U T 1200 V / 200 ms 1200 V / 200 ms Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 1.5 mm 2 solid 1.5 mm 2 solid Cross-sectional area (max.) 25 mm 2 stranded 25 mm 2 stranded Mounting on 60 mm busbar systems 60 mm busbar systems Enclosure material thermoplastic thermoplastic Degree of protection IP 20 IP 20 Dimension 4.5 mods., DIN 43880 4.5 mods., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type BBA 60 4P 275 BBA 60 4P 275 FM Part No. 950 202 950 203 Packing unit 1 pc(s) 1 pc(s) Accessory Part for BBA 60 950 204 T 275 BBA Varistor-Based Protection Module with Thermo Dynamic Control T 275 BBA 950 204 Type T 275 BBA Nominal discharge current (8/20 μs) I n 20 ka 275 V Max. continuous dc voltage U C 350 V PU Part Type pc(s) No. T 275 BBA 1 950 204 Accessory Part for BBA 60 950 205 T C 255 BBA N-PE Spark-Gap-Based Protection Module T C 255 BBA 950 205 950 206 F D02 BBA F D02 BBA 950 206 Type T C 255 BBA Nominal discharge current (8/20 μs) I n 20 ka Max. discharge current (8/20 μs) I max 30 ka 255 V PU Part Type pc(s) No. T C 255 BBA 1 950 205 D02 Backup Fuse for BBA 60 Devices PU Part Type pc(s) No. F D02 BBA 10 950 206 106

SURGE ARRESTERS TYPE 2 SPD according to EN 61643-11; SPD Class II according to IEC 61643-1; V NH / VA NH Surge Arresters in NH Design Surge arrester for use in NH fuse holders, sizes 00 and 1 Zinc oxide varistor with control device, disconnector and integrated backup fuse (VA NH with additional spark gap in series connection) Energy-coordinated within the Red/Line product family Visual indication of faults by tripping indicator For protection of low voltage consumer s installations against surges. For use in the lightning protection zones concept at boundaries 0 B 1 and higher. German patent. V(A) NH00 280: Surge arrester for use in NH fuse holders, size 00 V(A) NH1 280: Surge arrester for use in NH fuse holders, size 1 V(A) NH00 280 FM: With fault indicator for remote signalling; allows for use of NH fuse holders with microswitch (tripping distance of fault indicator max. 7 mm) The single-pole V NH and VA NH surge arresters show that surge protective devices have not to be designed for DIN rails or socket outlets only. Being adjusted to the conditions at industrial sub-circuit distribution boards, V NH and VA NH devices are designed in form of a NH fuse holder. This allows for easy integration into busbar systems, as often applied in zones belonging to the operators of power supply systems or in industrial installations. Thus, the advantages of busbar systems like easy installation, less installation time and less wiring, apply also to surge protection. The idea of such a busbar system is continued consistently with arresters in NH design. V NH and VA NH surge arresters can be installed and removed by means of a fuse switch disconnector and a fuse handle. This makes it considerably easier to measure the isolation of the installation, as the SPD has not to be disconnected any more. A further considerable advantage of the V NH / VA NH family is the already integrated backup fuse. Using an earth fault and short-circuit-proof wiring, this is really a decisive contribution for saving space and costs in distribution boards. Type VA NH of the high-capacity zinc oxide varistor with thermal control and disconnection device of the V NH devices, has been amended by a spark gap in series connection. VA NH devices provide reliable protection especially for widely expanded systems with permanent isolation control. Apart from the standard visual indication by fault indicator, V(A) NH... FM units provide a microswitch already set into the NH fuse base for remote signalling. 107

V NH / VA NH V NH00 (FM) SURGE ARRESTERS TYPE 2 900 261 V NH00 280 900 263 V NH00 280 FM V NH00 280 VNH Surge Arrester, Size 00 900 261 V NH00 280 FM VNH FM Surge Arrester, Size 00 900 263 Basic circuit diagram V NH00 (FM) Dimension drawing V NH00 (FM) V NH00 (FM): Surge arrester for use in NH fuse holders, size 00, optionally with fault indicator for remote signalling V NH00 280 V NH00 280 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II 280 V 280 V Nominal discharge current (8/20 μs) I n 15 ka 15 ka Max. discharge current (8/20 μs) I max 30 ka 30 ka Voltage protection level U P 1.25 kv 1.25 kv Voltage protection level at 5 ka U P 1 kv 1 kv Response time t A 25 ns 25 ns Short circuit withstand capability 25 ka rms 25 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Indication of disconnector red fault indicator red fault indicator (tripping distance 7 mm) Operating temperature range T U -40 C...+80 C -40 C...+80 C Mounting on NH fuse holder, size 00 NH fuse holder, size 00 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IPX4W Type V NH00 280 V NH00 280 FM Part No. 900 261 900 263 Packing unit 1 pc(s) 1 pc(s) 108

900 270 V NH1 280 SURGE ARRESTERS TYPE 2 V NH / VA NH V NH1 V NH1 280 900 270 Dimension drawing V NH1 Basic circuit diagram V NH1 V NH1: Surge arrester for use in NH fuse holders, size 1 V NH1 280 SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II 280 V Nominal discharge current (8/20 μs) I n 15 ka Max. discharge current (8/20 μs) I max 30 ka Voltage protection level U P 1.25 kv Voltage protection level at 5 ka U P 1 kv Response time t A 25 ns Short circuit withstand capability 25 ka rms TOV voltage U T 335 V / 5 sec. Indication of disconnector red fault indicator Operating temperature range T U -40 C...+80 C Mounting on NH fuse holder, size 1 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IPX4W Type V NH1 280 Part No. 900 270 Packing unit 1 pc(s) 109

V NH / VA NH VA NH00 FM SURGE ARRESTERS TYPE 2 900 262 VA NH00 280 900 264 VA NH00 280 FM VA NH00 280 VANH Surge Arrester, Size 00 900 262 VA NH00 280 FM VANH FM Surge Arrester, Size 00 900 264 Basic circuit diagram VA NH00 (FM) Dimension drawing VA NH00 (FM) VA NH00 280 FM: Surge arrester with varistor- and spark-gap-based series connection; for use in NH fuse holders, size 00, optionally with fault indicator for remote signalling VA NH00 280 VA NH00 280 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II Class II 280 V 280 V Nominal discharge current (8/20 μs) I n 10 ka 10 ka Max. discharge current (8/20 μs) I max 20 ka 20 ka Voltage protection level U P 2.0 kv 2.0 kv Response time t A 100 ns 100 ns Short circuit withstand capability 25 ka rms 25 ka rms TOV voltage U T 335 V / 5 sec. 335 V / 5 sec. Indication of disconnector red fault indicator red fault indicator (tripping distance 7 mm) Operating temperature range T U -40 C...+80 C -40 C...+80 C Mounting on NH fuse holder, size 00 NH fuse holder, size 00 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IPX4W Type VA NH00 280 VA NH00 280 FM Part No. 900 262 900 264 Packing unit 1 pc(s) 1 pc(s) 110

900 271 VA NH1 280 SURGE ARRESTERS TYPE 2 V NH / VA NH VA NH1 VA NH1 280 900 271 Dimension drawing VA NH1 Basic circuit diagram VA NH1 VA NH1 280: Surge arrester with varistor- and spark-gap-based series connection; for use in NH fuse holders, size 1 VA NH1 280 SPD according to EN 61643-11 SPD according to IEC 61643-1 Class II 280 V Nominal discharge current (8/20 μs) I n 10 ka Max. discharge current (8/20 μs) I max 20 ka Voltage protection level U P 2.0 kv Response time t A 100 ns Short circuit withstand capability 25 ka rms TOV voltage U T 335 V / 5 sec. Indication of disconnector red fault indicator Operating temperature range T U -40 C...+80 C Mounting on NH fuse holder, size 1 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IPX4W Type VA NH1 280 Part No. 900 271 Packing unit 1 pc(s) 111

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SURGE ARRESTERS TYPE 3 SPD according to EN 61643-11 SPD Class III according to IEC 61643-1 For protecting the power supply of industrial electronic devices against surges in switchgear installations. DEHNrail modular Two-pole, Pluggable Surge Arrester Two-pole surge arrester consisting of a base element and plug-in protection module High discharge capacity due to powerful zinc-oxide-varistor/spark-gap combination Energy-coordinated within the Red/Line product family Operating state/fault indication by mark in the inspection window Small (modular) design according to DIN 43880 Easy exchange of protection modules with module releasing button DEHNrail M 2P 255: DEHNrail M 2P 255 FM: Two-pole surge arresters consisting of a base element and plug-in protection module With remote signalling contact for monitoring device (floating changeover contact) The new modular devices of the DEHNrail M product family impress the users with their high performance parameters and clear new Red/Line design. The device combines safety and easy handling in only one module to a convincing synergy. The low voltage protection level as well as the comprehensive protection against common-mode and differential-mode interferences are adapted to protection of industrial terminal electronic devices in an optimal way. The design of the devices with input and output terminals for series connection and the protective circuit designed for high load currents underline this concept. If the protective circuit is overloaded despite of the powerful characteristics of the devices, the module releasing button allows for quick exchanging of the protection module. Apart from the standard visual indication by the green and red marking, type DEHNrail M... FM has a 3-pole terminal for remote signalling. As the remote signalling contact is a floating changeover contact, the remote signal can be used as break or make contact, according to circuit concept. The very compact design of the DEHNrail M devices includes the distinctive Y protection circuit and the combined SPD control and disconnector. The coding integrated into the base part and protection module prevents wrong supplying by the installer or user. The new module locking system of the DEHNrail M product family is unique for surge protective devices. It connects the surge protection module tightly with the base part of the SPD. Neither vibrations during transport nor the electromagnetic forces of discharges can loosen this connection. 113

DEHNrail modular DEHNrail M 2P 255 (FM) SURGE ARRESTERS TYPE 3 953 200 DR M 2P 255 953 205 DR M 2P 255 FM 1 2 DR M 2P 255 953 200 DR M 2P 255 FM 953 205 12 11 14 3 4 Basic circuit diagram DR M 2P 255 FM Dimension drawing DR M 2P 255 FM DR M 2P 255 (FM): Two-pole surge arrester, consisting of a base element and plug-in protection module DR M 2P 255 DR M 2P 255 FM SPD according to EN 61643-11 SPD according to IEC 61643-1 Class III Class III Nominal ac voltage U N 230 V 230 V 255 V 255 V Max. continuous dc voltage U C 255 V 255 V Nominal load current ac I L 25 A 25 A Nominal discharge current (8/20 μs) [L-N] I n 3 ka 3 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka 5 ka Combined impulse [L-N] U OC 6 kv 6 kv Combined impulse [L+N-PE] U OC 10 kv 10 kv Voltage protection level [L-N] U P 1250 V 1250 V Voltage protection level [L/N-PE] U P 1500 V 1500 V Response time [L-N] t A 25 ns 25 ns Response time [L/N-PE] t A 100 ns 100 ns Max. mains-side overcurrent protection 25 A gl/gg or B 25 A 25 A gl/gg or B 25 A Short circuit withstand capability at mains-side overcurrent protection with 25 A gl/gg 6 ka rms 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms 1200 V + U 0 / 200 ms Operating temperature range T U -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 0.5 mm 2 solid/flexible 0.5 mm 2 solid/flexible Cross-sectional area (max.) 4 mm 2 stranded/flexible 4 mm 2 solid/2.5 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 Dimension 1 mod., DIN 43880 1 mod., DIN 43880 Type of remote signalling contact changeover contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DR M 2P 255 DR M 2P 255 FM Part No. 953 200 953 205 Packing unit 1 pc(s) 1 pc(s) Accessory Part for DEHNrail modular 953 010 DR MOD 255 Protection Module for DEHNrail M DR MOD 255: Protection module with integrated Y protection circuit DR MOD 255 953 010 Type DR MOD 255 Nominal discharge current (8/20 μs) [L-N] I n 3 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka 255 V Max. continuous dc voltage U C 255 V PU Part Type pc(s) No. DR MOD 255 1 953 010 114

SURGE ARRESTERS TYPE 3 SPD according to EN 61643-11 SPD Class III according to IEC 61643-1 DEHNrail Two-pole Surge Arrester Two-pole surge protection with control device and disconnector Increased safety due to distinctive Y-protective circuit Visual operating state indication (green), visual fault indication (red) Floating remote signalling contact (break contact) for fault indication (no simultaneous disconnection from mains) For protection of the power supply of industrial electronic equipment against surges in switchgears installations. DEHNrail... FML: Two-pole compact surge arrester with visual operating state indicator and optional remote signalling The 2-pole surge arresters of the DEHNrail family have been developed especially for protection of terminal equipment in industrial electronic systems. Being adjusted to this kind of environment, the arresters are designed for 35 mm DIN rails. The low voltage protection level as well as the comprehensive protection against common-mode and differentialmode interferences is characterising for DEHNrail devices. In order to provide the low protection levels for the terminal equipment to be protected in an optimal way, the device provides input and output terminals for series connection. Thus DEHNrail adapts itself ideally to the cable run upstream of the terminal equipment without requiring additional terminal blocks for the outgoing cables. The very compact design of the DEHNrail devices already includes the approved disconnector. This isolates an overloaded circuit without interrupting the supply circuit. Apart from the standard visual indication with green and red light, DEHNrail devices provide a 2-pole terminal for remote signalling. 115

DEHNrail DEHNrail SURGE ARRESTERS TYPE 3 901 100 DR 230 FML 901 101 DR 120 FML 901 102 DR 60 FML 901 103 DR 48 FML 901 104 DR 24 FML FM L(N) FM L(N) DR 230 FML DEHNrail 230 FML, 230 V 901 100 DR 120 FML DEHNrail 120 FML, 120 V 901 101 DR 60 FML DEHNrail 60 FML, 60 V 901 102 DR 48 FML DEHNrail 48 FML, 48 V 901 103 DR 24 FML DEHNrail 24 FML, 24 V 901 104 N (L) N (L) PE PE Basic circuit diagram DR... FML Dimension drawing DR... FML DR... FML: Two-pole compact surge arrester with control device and disconnector DR 230 FML DR 120 FML DR 60 FML DR 48 FML DR 24 FML SPD according to EN 61643-11 SPD according to IEC 61643-1 Class III Class III Class III Class III Class III Nominal ac voltage U N 230 V 120 V 60 V 48 V 24 V 255 V 150 V 75 V 60 V 30 V Max. continuous dc voltage U C 255 V 150 V 75 V 60 V 30 V Nominal load current ac I L 16 A 16 A 16 A 16 A 16 A Nominal discharge current (8/20 μs) [L-N] I n 3 ka 2.5 ka 2.5 ka 1 ka 1 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka 5 ka 5 ka 2 ka 2 ka Combined impulse [L-N] U OC 6 kv 5 kv 5 kv 2 kv 2 kv Combined impulse [L+N-PE] U OC 10 kv 10 kv 10 kv 4 kv 4 kv Voltage protection level [L-N] U P 1250 V 700 V 500 V 350 V 220 V Voltage protection level [L/N-PE] U P 1500 V 1100 V 850 V 850 V 850 V Response time [L-N] t A 25 ns 25 ns 25 ns 25 ns 25 ns Response time [L/N-PE] t A 100 ns 100 ns 100 ns 100 ns 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A 16 A gl/gg or B 16 A 16 A gl/gg or B 16 A 16 A gl/gg or B 16 A 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 6 ka rms 6 ka rms 6 ka rms 6 ka rms 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms Indication of disconnector red light red light red light red light red light Operating state indication green light green light green light green light green light Operating temperature range T U -40 C...+80 C -40 C...+80 C -40 C...+80 C -40 C...+80 C -40 C...+80 C Cross-sectional area (min.) 0.5 mm 2 solid/flexible 0.5 mm 2 solid/flexible 0.5 mm 2 solid/flexible 0.5 mm 2 solid/flexible 0.5 mm 2 solid/flexible Cross-sectional area (max.) 4 mm 2 stranded/flexible 4 mm 2 stranded/flexible 4 mm 2 stranded/flexible 4 mm 2 stranded/flexible 4 mm 2 stranded/flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 IP 20 IP 20 IP 20 IP 20 Dimension 1.5 mods., DIN 43880 1.5 mods., DIN 43880 1.5 mods., DIN 43880 1.5 mods., DIN 43880 1.5 mods., DIN 43880 Approvals, Certifications CSA, UL CSA, UL CSA, UL CSA, UL CSA, UL Type of remote signalling contact break contact break contact break contact break contact break contact Switching capacity ac 250 V/0.5 A 250 V/0.5 A 250 V/0.5 A 250 V/0.5 A 250 V/0.5 A Switching capacity dc Cross-sectional area for remote signalling terminals 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A max. 1.5 mm 2 solid/flexible Type DR 230 FML DR 120 FML DR 60 FML DR 48 FML DR 24 FML Part No. 901 100 901 101 901 102 901 103 901 104 Packing unit 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 116

SURGE ARRESTERS TYPE 3 SPD according to EN 61643-11 SPD Class III according to IEC 61643-1 DEHNrail 230 3N Four-pole Surge Arrester Four-pole surge protection with control device and disconnector Visual operating state indication for the three phase conductors (green) and visual fault indication (red) Floating remote signalling contact (break contact) for fault indication (no simultaneous disconnection from mains) For protection of the power supply of industrial electronic equipment against surges in switchgears. DEHNrail 230 3N FML: Four-pole compact SPD with visual operating state indication and optional remote signalling The 4-pole surge arrester DEHNrail 230 3N has been developed especially for protection of 3-phase terminal devices in industrial electronic systems. Being adjusted to this kind of environment, the surge arrester is designed for 35 mm DIN rails. The low voltage protection level as well as the comprehensive protection against common-mode and differentialmode interferences is characterising for DEHNrail 230 3N. In order to provide the low protection levels in an optimal way for the terminal equipment to be protected, the device was designed with input and output terminals for series connection. Thus, DEHNrail 230 3N adapts itself ideally to the cable run upstream of the terminal equipment without requiring additional terminal blocks for outgoing cables. The very compact design of DEHNrail 230 3N already includes the approved disconnector. This isolates an overloaded circuit from mains without interrupting the supply circuit. Apart from the standard visual indication with a green light and red light for fault indication, DEHNrail 230 3N provides a 2-pole terminal for remote signalling. 117

DEHNrail 230 3N SURGE ARRESTERS TYPE 3 901 130 DR 230 3N FML L1 L1 L2 L2 L3 L3 DR 230 3N FML DEHNrail 230/3N FML, 230 V 901 130 Def. N FM Basic circuit diagram DR 230 3N FML Dimension drawing DR 230 3N FML DR 230 3N FML: Four-pole surge arrester with control device and disconnector DR 230 3N FML SPD Type according to EN 61643-11 SPD according to IEC 61643-1 Class III Nominal ac voltage U N 230/400 V 255/440 V Nominal load current ac I L 16 A Nominal discharge current (8/20 μs) [L-N] I n 3 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka Combined impulse [L-N] U OC 6 kv Combined impulse [L+N-PE] U OC 10 kv Voltage protection level [L-N] U P 1.25 kv Voltage protection level [L/N-PE] U P 1.5 kv Response time [L-N] t A 25 ns Response time [L/N-PE] t A 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms Indication of disconnector red light Operating state indication green light Operating temperature range T U -40 C...+80 C Cross-sectional area (min.) 0.5 mm 2 solid/flexible Cross-sectional area (max.) 4 mm 2 stranded/flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 3 mods., DIN 43880 Type of remote signalling contact break contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Type DR 230 3N FML Part No. 901 130 Packing unit 1 pc(s) 118

SURGE ARRESTERS TYPE 3 Mains Filter NF 10 Protects sensitive industrial electronic systems against balanced and unbalanced interferences Completes surge protection, e.g. DEHNrail 230 FML Easy installation on DIN rails in switchgears NF 10 mains filter is the ideal completion of surge protection for industrial terminal equipment. Being a DIN rail mountable device, the mains filter can be ideally installed downstream of surge protective devices (e.g. DEHNrail 230 FML). This provides protection against balanced and unbalanced induced high-frequency interferences in addition to surge protection. The separate input and output terminals of the mains filter ensure that the protective effect of the device is provided optimally for the equipment to be protected. This allows also to come up to requirements of electromagnetic compatibility exceeding surge protection for construction of control systems and installations. 912 254 NF 10 NF 10 Mains Filter 10 A 912 254 L1 L1 mains SPD N PE N PE Dimension drawing NF 10 Basic circuit diagram NF 10 NF 10: Mains filter for protection against balanced and unbalanced interferences NF 10 Nominal ac voltage U N 230 V Nominal load current ac I L 10 A Discharge current (at U N ) 3.5 ma Attenuation at f = 1 MHz, balanced: > 64 db Attenuation at f = 1 MHz, unbalanced: > 69 db Total circuit capacity [L-N] 660 nf Total circuit capacity [L (N)-PE] 66 nf Total circuit inductance 1.8 mh per line Backup fuse 10 A gl/gg Operating temperature range -25 C...+40 C Cross-sectional area min. 2.5 mm 2 stranded, max. 4 mm 2 flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material thermoplastic GF (polycarbonate) Degree of protection IP 20 Dimension 110 x 45 x 75 mm Type NF 10 Part No. 912 254 Packing unit 1 pc(s) 119

SPS Protector Two-pole Surge Arrester with Filter SURGE ARRESTERS TYPE 3 SPD according to EN 61643-11 SPD Class III according to IEC 61643-1 Surge protection with control device and disconnector Interference suppressor filter with increased attenuation Device installed into a shielded enclosure Visual operating state indication (green) and floating remote signalling contact (break contact) for fault indication For protection of the power supply of industrial electronic equipment (e.g. programmable logic controls/plcs) against surges and high-frequency interference voltages. SPS Protector: Two-pole surge arrester with interference suppressor filter SPS Protector combines surge protection and interference suppressor filter in a compact device. Therefore the device is ideal for protection of sensitive terminal equipment in industrial automation systems (e.g. programmable logic control PLC ). The coordinated functions of surge protection and filter complement one another and prevent any core saturation of the filter at high-energy transients. The separate input and output terminals ensure in an optimal way that the high protective effect is provided for the device to be protected. The metal enclosure of SPS Protector ensures the high-frequency interferences to be conducted without interfering with other devices close the installation. The compact construction of SPS Protector already includes the approved disconnector. In case of overloads, this isolates the arrester from mains without interrupting the supply circuit. Apart from the green light, SPS Protector also offers a standard remote signalling device. 120

912 253 SPS PRO SURGE ARRESTERS TYPE 3 SPS Protector SPS Protector SPS PRO SPS- Protector 912 253 L FM 11 12 L' N N' PE PE Dimension drawing SPS PRO Basic circuit diagram SPS PRO SPS PRO: Surge arrester with interference suppressor filter SPS PRO SPD according to EN 61643-11 SPD according to IEC 61643-1 Class III Nominal ac voltage U N 230 V 255 V Nominal load current ac I L 3 A Nominal discharge current (8/20 μs) [L-N] I n 3 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka Combined impulse [L-N] U OC 6 kv Combined impulse [L+N-PE] U OC 10 kv Voltage protection level [L-N] U P 0.8 kv Voltage protection level [L/N-PE] U P 1.0 kv Response time [L-N] t A 25 ns Response time [L/N-PE] t A 100 ns Short circuit withstand capability at max. mains-side overcurrent protection 6 ka rms Indication of disconnector green light off Operating state indication green light Operating temperature range T U -10 C...+40 C Cross-sectional area (min.) 0.14 mm 2 solid/flexible Cross-sectional area (max.) 2.5 mm 2 stranded/flexible Mounting on 35 mm DIN rail acc. to EN 60715 Enclosure material aluminium, red powder coating Degree of protection IP 20 Dimension 7 mods., DIN 43880 Type of remote signalling contact break contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Cross-sectional area for remote signalling terminals max. 1.5 mm 2 solid/flexible Mains filter according to DIN VDE 0565 Part 3 Attenuation at f = 1 MHz, balanced: 73 db Attenuation at f = 1 MHz, unbalanced: 45 db Type SPS PRO Part No. 912 253 Packing unit 1 pc(s) 121

DEHNsafe Surge Arrester for Cable Ducts SURGE ARRESTERS TYPE 3 SPD according to EN 61643-11; SPD Class III according to IEC 61643-1; Two-pole surge protection for 230 V terminal devices For use in wiring sockets and cable ducts Increased safety due to distinctive Y protection circuit Multiple visual operating state indication Programmable acoustic function Terminals for series connection Independent from design of socket outlets For protection of electronic devices against surges. For installation into electrical installation systems, e.g. cable ducts or wiring sockets. DEHNsafe 230 LA: Surge protective device for cable ducts Especially the flexible application of DEHNsafe surge arresters enthuses the operators. DEHNsafe is a two-pole surge protective device for 230 V terminal equipment applications for installation into cable ducts, but also into flat wiring sockets. This is possible due to the minor installation depth of only 31 mm. DEHNsafe includes a control device and a thermally based disconnector. In addition to a visual operating state indication, the device provides a programmable acoustic fault indication. With such an acoustic signal, the fault indication can be programmed for three different operating states: Acoustic fault indication, Test function, Muting of the acoustic signal. For covering, a triple TAE cover plate of any switch programme manufacturer is used. Thus, DEHNsafe can adapt itself ideally to every socket outlet design. The two available terminals for L, N and PE allow for series connection to ensure that the surge protection is situated in parallel to the circuit to be protected. In case of overloads on DEHNsafe, this does not necessarily interrupt the circuit to be protected by the surge protection. DEHNsafe surge arresters provide the users with a green and red light for visual control of the protective device. 122

924 370 DSA 230 LA SURGE ARRESTERS TYPE 3 DEHNsafe DEHNsafe DSA 230 LA 924 370 DEHNsafe L PE N Dimension drawing DSA 230 LA Basic circuit diagram DSA 230 LA DSA 230 LA: Surge protective device for cable ducts and wiring sockets DSA 230 LA SPD according to EN 61643-11 SPD according to IEC 61643-1 Class III Nominal ac voltage U N 230 V 255 V Nominal load current I L 16 A Nominal discharge current (8/20 μs) [L-N] I n 3 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka Combined impulse [L-N] U OC 6 kv Combined impulse [L+N-PE] U OC 10 kv Voltage protection level [L-N] U P 1.25 kv Voltage protection level [L/N-PE] U P 1.5 kv Response time [L-N] t A 25 ns Response time [L/N-PE] t A 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms Indication of disconnector red light + acoustic signal Operating state indication green light Switch function test / acoustic signal off Operating temperature range T U -25 C...+40 C Cross-sectional area (max.) 2.5 mm 2 stranded/2.5 mm 2 flexible Mounting on supporting ring (Ø60 mm) for installation into switchboxes, depth 40 mm Enclosure material grey thermoplastic, UL 94 V-2 Degree of protection IP 20 Cover TAE Type DSA 230 LA Part No. 924 370 Packing unit 1 pc(s) Accessory Part for DEHNsafe Accessory Part for DEHNsafe Central Covering Plate Single unit, alpha exclusive PU Part Type Colour pc(s) No. ZAP STW studio white 1 924 329 924 329 ZAP STW ZAP STW Central Covering Plate for DEHNsafe 924 329 Covering Frame Single unit, alpha exclusive PU Part Type Colour pc(s) No. AR1 STW studio white 1 924 328 924 328 AR1 STW AR1 STW Covering Frame for DEHNsafe, studio white 924 328 123

DEHNflex Flexible Protection for Terminal Equipment SURGE ARRESTERS TYPE 3 SPD according to EN 61643-11 SPD Class III according to IEC 61643-1 Two-pole surge protection with control device and disconnector More safety due to distinctive Y protection circuit Acoustic fault indicator Compact design For protection of electronic equipment against surges. For installation into electrical systems, e.g. flush-mounted systems, cable ducts and flush-mounted sockets. German design patent for DEHNflex A /... D. DEHNflex M: DEHNflex A: DEHNflex D: Compact type; for use in cable duct systems and flush-mounted socket outlets For use in any cable duct systems or flush-mounted socket outlets Like DEHNflex A, but for series connection of several socket outlets Already the name of the DEHNflex family points to the nearly unlimited application possibilities of the devices. Being 2-pole surge arresters, the compact modules are suitable for protecting electronic consumers in final circuits. The design was adapted to the most common installation sites, i.e. cable ducts and wiring sockets. DEHNflex devices show very impressively that small and compact sizes do not necessarily mean low-capacity performance. The distinctive Y protection circuit is always safe, even if phase and neutral conductor can not be assigned definitely. Apart from the powerful Y circuit, even a disconnector and an acoustic fault indicator for remote signalling can still be installed into the compact enclosure. Whether in cable ducts, flush-mounted systems, branching boxes or in device tubs DEHNflex can always be installed in the right place close to terminal equipment. 124

924 396 DFL M 255 SURGE ARRESTERS TYPE 3 DEHNflex DEHNflex M DFL M 255 DEHNflex M 924 396 N PE L Dimension drawing DFL M Basic circuit diagram DFL M DFL M: Surge arrester for all kinds of installation systems on terminal equipment level; compact dimension DFL M 255 SPD according to EN 61643-11 SPD according to IEC 61643-1 Class III Nominal ac voltage U N 230 V 255 V Nominal discharge current (8/20 μs) [L-N] I n 1.5 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 3 ka Combined impulse [L-N] U OC 3 kv Combined impulse [L+N-PE] U OC 6 kv Voltage protection level [L-N] U P 1.25 kv Voltage protection level [L/N-PE] U P 1.5 kv Response time [L-N] t A 25 ns Response time [L/N-PE] t A 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms Indication of disconnector acoustic signal on Operating temperature range T U -25 C...+40 C Terminal wires 1 mm 2, length 120 mm Enclosure material red thermoplastic, UL 94 V-2 Degree of protection of installed device IP 20 Dimension 36 x 62 x 19 mm Type DFL M 255 Part No. 924 396 Packing unit 1 pc(s) 125

DEHNflex DEHNflex A SURGE ARRESTERS TYPE 3 924 389 DFL A 255 L N DFL A 255 DEHNflex A 924 389 PE Basic circuit diagram DFL A Dimension drawing DFL A DFL A: Surge arrester for all kinds of installation systems on terminal equipment level; with test function DFL A 255 SPD according to EN 61643-11 SPD according to IEC 61643-1 Class III Nominal ac voltage U N 230 V 255 V Nominal discharge current (8/20 μs) [L-N] I n 3 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka Combined impulse [L-N] U OC 6 kv Combined impulse [L+N-PE] U OC 10 kv Voltage protection level [L-N] U P 1.25 kv Voltage protection level [L/N-PE] U P 1.5 kv Response time [L-N] t A 25 ns Response time [L/N-PE] t A 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms Indication of disconnector acoustic signal on Operating temperature range T U -25 C...+40 C Terminal wires 1 mm 2, length 120 mm Enclosure material red thermoplastic, UL 94 V-2 Degree of protection of installed device IP 20 Dimension 36 x 62 x 19 mm Type DFL A 255 Part No. 924 389 Packing unit 1 pc(s) 126

924 395 DFL D 255 SURGE ARRESTERS TYPE 3 DEHNflex DEHNflex D DFL D 255 DEHNflex D 924 395 L N PE Dimension drawing DFL D Basic circuit diagram DFL D DFL D: Surge arrester for all kinds of installation systems on terminal equipment level; allows for series connection; with test function DFL D 255 SPD according to EN 61643-11 SPD according to IEC 61643-1 Class III Nominal ac voltage U N 230 V 255 V Nominal load current ac I L 16 A Nominal discharge current (8/20 μs) [L-N] I n 3 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka Combined impulse [L-N] U OC 6 kv Combined impulse [L+N-PE] U OC 10 kv Voltage protection level [L-N] U P 1.25 kv Voltage protection level [L/N-PE] U P 1.5 kv Response time [L-N] t A 25 ns Response time [L/N-PE] t A 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms Indication of disconnector acoustic signal on Operating temperature range T U -25 C...+40 C Terminal wires 2.5 mm 2, length 120 mm Enclosure material red thermoplastic, UL 94 V-2 Degree of protection of installed device IP 20 Dimension 36 x 62 x 19 mm Type DFL D 255 Part No. 924 395 Packing unit 1 pc(s) 127

STC Module Surge Arrester for Socket Outlets with Earth Contact SURGE ARRESTERS TYPE 3 SPD according to EN 61643-11; SPD Class III according to IEC 61643-1; Two-pole surge protection with control device and disconnector More safety due to distinctive Y protection circuit Acoustic fault indicator with optional test function For additional installation at common socket outlets with earth contact Independent from the design of the socket outlets used For protection of electronic devices against surges. For use with common socket outlets with earth contact. STC 230: Snap-on module for common socket outlets with earth contact The popular STC surge protection module presents itself modestly. Being a two-pole surge arrester, the module can be installed additionally on the rear side of common socket outlets with earth contact. Thus, the STC surge protection module adapts itself to every type of socket outlet with earth contact. In addition to a thermal disconnector, the protective device has an acoustic fault indicator with optional manual test function. As the surge protection module is installed in parallel to the socket outlet, the power supply of the connected consumer remains uninterrupted, even if the surge arrester is overloaded. 128

924 350 STC 230 SURGE ARRESTERS TYPE 3 STC Module STC 230 STC 230 STC Surge Protection Module 924 350 N PE L Dimension drawing STC 230 Basic circuit diagram STC 230 STC 230: Two-pole surge arrester for snapping onto socket outlets with earth contact STC 230 SPD according to EN 61643-11 SPD according to IEC 61643-1 Class III Nominal ac voltage U N 230 V 255 V Nominal discharge current (8/20 μs) [L-N] I n 2.5 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka Combined impulse [L-N] U OC 5 kv Combined impulse [L+N-PE] U OC 10 kv Voltage protection level [L-N] U P 1.25 kv Voltage protection level [L/N-PE] U P 1.5 kv Response time [L-N] t A 25 ns Response time [L/N-PE] t A 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms Operating temperature range T U -25 C...+40 C Terminal wires 1 mm 2, 100 mm long Mounting on common socket outlets with earth contact Enclosure material grey thermoplastic, UL 94 V-2 Degree of protection of installed device IP 20 Dimension 53 x 53 x 32 mm Indication of disconnector acoustic signal on Type STC 230 Part No. 924 350 Packing unit 1 pc(s) 129

VC 280/2 Compact Protection for Terminal Equipment SURGE ARRESTERS TYPE 3 SPD according to EN 61643-11 SPD Class III according to IEC 61643-1 Two-pole surge protection with control device and disconnector Complete surge protective circuit for devices with ac power supply More safety due to distinctive Y protection circuit Floating remote signalling contact (break contact) with test option for fault indication For installation onto printed circuit boards For protection of electronic equipment against surges. For installation into enclosures or directly into the device to be protected. German design patent. VC 280 2: Surge protective mains module for installation into the terminal device to be protected Small-sized, but still supplied with all required characteristics this is surge arrester type VC 280/2. The two-pole module includes the distinctive Y protection circuit, control device and disconnector as well as floating remote signalling contact. This means maximum compact safety. Even a device for optional testing of the fault indication is integrated into the devices. With VC 280/2, electronic equipment can be protected safely against surges. By providing solders, the SPD can be installed directly onto the PCBs of the device to be protected. 130

900 471 VC 280 2 SURGE ARRESTERS TYPE 3 VC 280/2 VC 280 2 VC 280 2 Mains Surge Protection Module, 2-pole 900 471 L/N L/N 11 12 Dimension drawing VC 280 2 Basic circuit diagram VC 280 2 VC 280 2: Surge protective mains module for installation into the terminal device to be protected VC 280 2 SPD according to EN 61643-11 SPD according to IEC 61643-1 Class III Nominal ac voltage U N 230 V 280 V Nominal discharge current (8/20 μs) [L-N] I n 3 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka Combined impulse [L-N] U OC 6 kv Combined impulse [L+N-PE] U OC 10 kv Voltage protection level [L-N] U P 1.25 kv Voltage protection level [L/N-PE] U P 1.5 kv Response time [L-N] t A 25 ns Response time [L/N-PE] t A 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms Indication of disconnector break contact Operating temperature range U T -25 C...+40 C Mounting on printed circuit board Enclosure material red thermoplastic, UL 94 V-2 Degree of protection IP 20 Dimension 32 x 24 x 15 mm Type of remote signalling contact break contact Switching capacity ac 250 V/0.5 A Switching capacity dc 250 V/0.1 A; 125 V/0.2 A; 75 V/0.5 A Type VC 280 2 Part No. 900 471 Packing unit 1 pc(s) 131

SF Protector / S Protector Surge Protective Adapter SURGE ARRESTERS TYPE 3 SPD according to EN 61643-11 SPD Class III according to IEC 61643-1 Surge protection with control device and disconnector Visual operating state indication (green) and visual fault indication (red) Mains filter (SF Protector only) More safety due to distinctive Y protection circuit S Protector: Protection for terminal equipment SF Protector: Protection for terminal equipment with mains filter Adapters for protection of the power supply of electronic equipment against surges as well as high-frequency interference voltages (SF Protector). The surge protective adapters of the S/SF Protector family protect electronic consumers in final circuits against surges. In SF Protector, the powerful surge protective circuit of S Protector was amended by an interference suppressor filter with balanced and unbalanced effect. This connection between surge protection and filter prevents the core saturation of the filter at high-energy transients. With a nominal current carrying capability of 16 A, S and SF Protector can be used flexibly in final electrical circuits. The distinctive Y protection circuit takes the lacking assignment of phase and neutral conductor in common socket outlets with earth contact into consideration. The integrated disconnector makes a further contribution for the safety of devices and equipment. The standard green and red lights inform the user about the present operating state of the surge protective devices. 132

909 821 S PRO SURGE ARRESTERS TYPE 3 SF Protector / S Protector S Protector S PRO S- Protector+B247 909 821 L/N PE red green L'/N' PE N'/L' N/L Dimension drawing S PRO Basic circuit diagram S PRO S PRO: Surge protective adapter S PRO SPD according ot EN 61643-11 SPD according to IEC 61643-1 Class III Nominal ac voltage U N 230 V 255 V Nominal load current ac I L 16 A Nominal discharge current (8/20 μs) [L-N] I n 2.5 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka Combined impulse [L-N] U OC 5 kv Combined impulse [L+N-PE] U OC 10 kv Voltage protection level U p 1.5 kv Response time [L-N] t A 25 ns Response time [L/N-PE] t A 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms Indication of disconnector red light Operating state indication green light Operating temperature range T U -25 C...+40 C Mounting plug-in system with earth contact acc. to DIN 49440 / DIN 49441 Enclosure material pure white thermoplastic, UL 94 V-2 Degree of protection IP 20 Dimension 128 x 71 x 40 mm Approvals, Certifications VDE Type S PRO Part No. 909 821 Packing unit 1 pc(s) 133

SF Protector / S Protector SF Protector SURGE ARRESTERS TYPE 3 909 820 SF PRO L/N SF PRO SF- Protector 909 820 PE red green L'/N' PE N'/L' N/L Basic circuit diagram SF PRO Dimension drawing SF PRO SF PRO: Surge protective adapter with integrated mains filter SF PRO SPD according ot EN 61643-11 SPD according to IEC 61643-1 Class III Nominal ac voltage U N 230 V 255 V Nominal load current ac I L 16 A Nominal discharge current (8/20 μs) [L-N] I n 2.5 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka Combined impulse [L-N] U OC 5 kv Combined impulse [L+N-PE] U OC 10 kv Voltage protection level U p 1.5 kv Response time [L-N] t A 25 ns Response time [L/N-PE] t A 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms Indication of disconnector red light Operating state indication green light Operating temperature range T U -25 C...+40 C Mounting plug-in system with earth contact acc. to DIN 49440 / DIN 49441 Enclosure material pure white thermoplastic, UL 94 V-2 Degree of protection IP 20 Dimension 128 x 71 x 40 mm Approvals, Certifications VDE Mains filter acc. to DIN VDE 0565 Part 3 Attenuation at f = 1 MHz, balanced: 54 db Attenuation at f = 1 MHz, unbalanced: 42 db Type SF PRO Part No. 909 820 Packing unit 1 pc(s) 134

SURGE ARRESTERS TYPE 3 SPD according to EN 61643-11 SPD Class III according to 61643-1 SFL Protector Surge Protective Multiple Socket Outlet with Filter Surge protection with control device and disconnector Interference suppressor filter More safety due to distinctive Y protective circuit Mains switch with operating state indication Visual fault indicator (red) Multiple socket outlet for protection of the power supply of electronic devices against surges as well as high-frequency interference voltages. SFL Protector: Multiple socket outlet with surge protection and interference suppressor filter SFL Protector completes the various Red/Line programme of surge protective devices. The connection between surge protection and mains filter turns the 5-fold socket outlet into a powerful device for protection of electronic consumers in final electrical circuits. The coordinated functions of surge protection and filter complement one another and prevent the core saturation of the filter at high-energy transients. The integrated mains filter was optimised for protection against balanced and unbalanced highfrequency interferences. With a nominal current carrying capacity of 16 A, SFL Protector can be used flexibly in final electrical circuits. The distinctive Y protective circuit takes the lacking assignment of phase and neutral conductor in conventional socket outlets with earth contact into consideration. The standard green and red lights inform the user at a glance about the present operating state of the surge protective device. 135

SFL Protector SFL PRO SURGE ARRESTERS TYPE 3 912 260 SFL PRO L/N SFL PRO SFL- Protector 912 260 PE N/L Basic circuit diagram SFL PRO Dimension drawing SFL PRO SFL PRO: Multiple socket outlet with surge protection and mains filter SFL PRO SPD according to EN 61643-11 SPD according to IEC 61643-1 Class III Nominal ac voltage U N 230 V 255 V Nominal load current ac I L 16 A Nominal discharge current (8/20 μs) [L-N] I n 3 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka Combined impulse [L-N] U OC 6 kv Combined impulse [L+N-PE] U OC 10 kv Voltage protection level U P 1.5 kv Response time [L-N] t A 25 ns Response time [L/N-PE] t A 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 1.5 ka rms TOV voltage [L-N] U T 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms Indication of disconnector red light Operating state indication green light Operating temperature range T U -25 C...+40 C Connecting cable length 200 cm Quantity of socket outlets 5 Mounting on plug-in system with earth contact acc. to DIN 49440 / DIN 49441 Enclosure material black/anthracite thermoplastic, UL 94 V-2 Degree of protection IP 20 Dimension 560 x 55 x 47 mm Approvals, Certifications VDE Mains filter acc. to DIN VDE 0565 Part 3 Attenuation at f = 1 MHz, balanced: 43 db Attenuation at f = 1 MHz, unbalanced: 48 db Type SFL PRO Part No. 912 260 Packing unit 1 pc(s) 136

SURGE ARRESTERS TYPE 3 SPD according to EN 61643-1 SPD Class III according to IEC 61643-1 NSM Protector Surge Protective Socket Outlet Surge protection with control device and disconnector More safety due to distinctive Y protective circuit Visual operating state indication (green) and visual fault indication (red) With supporting ring (dimension 60 mm) for installation into switchboxes Ø60 mm, depth 40 mm For protection of electronic equipment against surges. Socket outlet with earth contact and surge protective circuit for installation into electrical installation systems. German design patent. NSM Protector: Socket outlet with earth contact and integrated surge protection The devices of the NSM Protector family combine surge protection and socket outlet with earth contact in one device. The two-pole surge arresters are designed especially for protection of electronic consumers in final circuits. The very compact design of NSM Protector devices already includes the approved disconnector. This isolates overloaded surge arresters without interrupting the supply circuit. The low voltage protection level as well as the comprehensive protection against common-mode and differential mode interferences is characterising for the devices of the NSM Protector family. The distinctive Y protective circuit takes the often lacking assignment of phase and neutral conductors in final circuits into consideration. The integrated disconnector makes a further contribution for safety of devices and installations. The standard green and red lights inform the user about the operating state of the surge protective devices. 137

NSM Protector NSM PRO SURGE ARRESTERS TYPE 3 924 335 NSM PRO TW 924 337 NSM PRO SI 924 339 NSM PRO AZ 924 342 NSM PRO EW L/N L/N NSM PRO TW NSM- Protector DELTA profile, titan white 924 335 NSM PRO SI NSM- Protector DELTA profile, silver 924 337 NSM PRO AZ NSM- Protector DELTA profile, anthracite 924 339 NSM PRO EW NSM- Protector DELTA profile, studio white 924 342 PE Basic circuit diagram NSM PRO... Dimension drawing NSM PRO... NSM PRO...: Surge protective socket outlet NSM PRO TW NSM PRO SI NSM PRO AZ NSM PRO EW SPD according to EN 61643-11 SPD according to IEC 61643-1 Class III Class III Class III Class III Nominal ac voltage U N 230 V 230 V 230 V 230 V 255 V 255 V 255 V 255 V Nominal discharge current (8/20 μs) [L-N] I n 3 ka 3 ka 3 ka 3 ka Nominal discharge current (8/20 μs) [L+N-PE] I n 5 ka 5 ka 5 ka 5 ka Combined impulse [L-N] U OC 6 kv 6 kv 6 kv 6 kv Combined impulse [L+N-PE] U OC 10 kv 10 kv 10 kv 10 kv Voltage protection level [L-N] U P 1.25 kv 1.25 kv 1.25 kv 1.25 kv Voltage protection level [L/N-PE] U P 1.5 kv 1.5 kv 1.5 kv 1.5 kv Response time [L-N] t A 25 ns 25 ns 25 ns 25 ns Response time [L/N-PE] t A 100 ns 100 ns 100 ns 100 ns Max. mains-side overcurrent protection 16 A gl/gg or B 16 A 16 A gl/gg or B 16 A 16 A gl/gg or B 16 A 16 A gl/gg or B 16 A Short circuit withstand capability at mains-side overcurrent protection with 16 A gl/gg 6 ka rms 6 ka rms 6 ka rms 6 ka rms TOV voltage [L-N] U T 335 V / 5 sec. 335 V / 5 sec. 335 V / 5 sec. 335 V / 5 sec. TOV voltage [L/N-PE] (I) U T 400 V / 5 sec. 400 V / 5 sec. 440 V / 5 sec. 400 V / 5 sec. TOV voltage [L/N-PE] (II) U T 1200 V + U 0 / 200 ms 1200 V + U 0 / 200 ms 1200 V + U 0 / 200 ms 1200 V + U 0 / 200 ms Indication of disconnector red light red light red light red light Operating state indication green light green light green light green light Operating temperature range T U -25 C...+40 C -25 C...+40 C -25 C...+40 C -25 C...+40 C Cross-sectional area Mounting on screwless double terminals up to 2.5 mm 2 each, also suitable for series connection supporting ring (Ø60 mm) for installation into switchboxes, depth 32 mm Enclosure material thermoplastic, UL 94 V-2 thermoplastic, UL 94 V-2 thermoplastic, UL 94 V-2 thermoplastic, UL 94 V-2 Degree of protection IP 20 IP 20 IP 20 IP 20 Type DELTA titanium white profile silver profile anthracite profile plus studio white Type NSM PRO TW NSM PRO SI NSM PRO AZ NSM PRO EW Part No. 924 335 924 337 924 339 924 342 Packing unit 1 pc(s) 1 pc(s) 1 pc(s) 1 pc(s) 924 340 AR1 AZ 924 343 AR1 EW AR1 TW Protector Cover, single-piece, titan white 924 336 AR1 SI Protector Cover, single piece, silver 924 338 AR1 AZ Protector Cover, single piece, anthracite 924 340 AR1 EW Protector Cover, single piece, studio white 924 343 Accessory Part for NSM Protector 924 336 AR1 TW 924 338 AR1 SI AR1 Single unit, suitable for NSM Protector PU Part Type Profile pc(s) No. AR1 TW DELTA profile, titanium white 1 924 336 AR1 SI DELTA profile, silver 1 924 338 AR1 AZ DELTA profile, anthracite 1 924 340 AR1 EW DELTA plus, studio white 1 924 343 138

ACCESSORIES Wiring DK 35 and STAK 2X16 DK 35 allows for changing the wiring level DK 35 supports a lightning-impulse-current-conform installation of SPD combinations STAK 2X16 allows for clamping cross sections smaller than the defined minimum clamping cross section of the surge protective device STAK 2X16 allows for EMC-optimised series connection according to IEC 60364-5-53 Realisation of an EMC-optimised series connection of lightning current and surge arresters according to IEC 60364-5-53 by means of STAK 2X16 900 699 DK 35 900 589 STAK 2X16 DK 35 Feedthrough Terminal, 35 mm2 900 699 STAK 2X16 900 589 Dimension drawing DK 35 DK 35: Feed-through terminal STAK 2x16: Pin-shape terminal DK 35 STAK 2X16 DK 35 STAK 2X16 Nominal ac/dc voltage U N 500 V Nominal load current ac I L 100 A Test current according to EN 60947-7-1 125 A Lightning impulse current (10/350 μs) 100 ka Backup fuse at application of arrester only 250 A gl/gg Backup fuse carrying operating current 100 A gl/gg Short circuit withstand capability at max. backup fuse 50 ka rms Operating temperature range T U -40 C...+80 C Cross-sectional area min. 1.5 mm 2 solid/flexible, max. 35 mm 2 stranded/25 mm 2 flexible 2 x 16 mm 2 Mounting on 35 mm DIN rail acc. to EN 60715 Type of connection front (double terminal) Enclosure material red thermoplastic, UL 94 V-0 Degree of protection IP 20 Dimension 1 mod., DIN 43880 Approvals, Certifications UL Type DK 35 STAK 2X16 Part No. 900 699 900 589 Packing unit 1 pc(s) 1 pc(s) 139

Insulating Enclosure ACCESSORIES Enclosure for installation of surge arresters, tested with lightning impulse currents Application example: Modular DEHNventil M TNC in insulating enclosure IGA 10 IP54 IGA 10 IP54 900 309 IGA 10 IP54 IGA 10 IP54 Insulating Enclosure, 10 mods. 900 309 Dimension drawing IGA 10 IP54 IGA 10 IP54: Insulating enclosure for installation of surge arresters, for installation of max. 10 mods., with 2 cable entries; ideal for series connection IGA 10 IP54 Degree of protection IP 54 Tested with lightning currents 3 Type of cover transparent cover Colour of enclosure grey Quantity of cable entries 2 x for cables Ø16...32 mm; 3 x for cables Ø8...15 mm Available space for installation 10 mods., DIN 43880 Dimension (w x h x d) 235 x 300 x 130 mm Sealable 3 Type IGA 10 IP54 Part No. 900 309 Packing unit 1 pc(s) 140

902 471 IGA 12 IP54 ACCESSORIES Insulating Enclosure IGA 12 IP54 IGA 12 IP54 902 471 Dimension drawing IGA 12 IP54 IGA 12 IP54: Insulating enclosure with space for 12 modules, for non-exhausting surge arresters IGA 12 IP54 Degree of protection IP 54 Type of cover transparent cover Colour of enclosure grey, RAL 7035 Cable entry integrated, elastic sealing membrane for entering cables PE/N Quantity x Cross section 3 x 25 mm 2, 12 x 4 mm 2, Cu Available space for installation 12 mods., DIN 43880 Dimension (w x h x d) 295 x 333 x 129 mm Type IGA 12 IP54 Part No. 902 471 Packing unit 1 pc(s) 902 472 IGA 24 IP54 IGA 24 IP54 IGA 24 IP54 902 472 Dimension drawing IGA 24 IP54 IGA 24 IP54: Insulating enclosure with space for installing max. 2x 12 modules, for non-exhausting surge arresters IGA 24 IP54 Degree of protection IP 54 Type of cover transparent cover Colour of enclosure grey, RAL 7035 Cable entry integrated, elastic sealing membrane for entering cables PE/N Quantity x Cross section 6 x 25 mm 2, 24 x 4 mm 2, Cu Available space for installation 24 (2x 12) mods., DIN 43880 Dimension (w x h x d) 295 x 458 x 129 mm Type IGA 24 IP54 Part No. 902 472 Packing unit 1 pc(s) 141

Insulating Enclosure IGA 6 IP54 ACCESSORIES 902 485 IGA 6 IP54 IGA 6 IP54 Insulating Enclosure 6 mods. 902 485 Dimension drawing IGA 6 IP54 IGA 6 IP54: Enclosure for non-exhausting surge arresters, with 6 mods. of installation space IGA 6 IP54 Degree of protection IP 54 Type of cover transparent cover Colour of enclosure grey Quantity of cable entries 2 plug-in glands EST 21 for cables Ø9... 21 mm Available space for installation 6 mods., DIN 43880 Dimension (w x h x d) 165 x 255 x 115 mm Type IGA 6 IP54 Part No. 902 485 Packing unit 1 pc(s) IGA 11 IP54 902 486 IGA 11 IP54 IGA 11 IP54 Insulating Enclosure 11 mods. 902 486 Dimension drawing IGA 11 IP54 IGA 11 IP54: Enclosure for exhausting surge arresters, with 11 mods. of installation space IGA 11 IP54 Degree of protection IP 54 Tested with lightning currents 3 Type of cover transparent cover Colour of enclosure grey Quantity of cable entries 2 self-sealing grommets for cables Ø16...32 mm Available space for installation 11 mods., DIN 43880 Dimension (w x h x d) 313 x 313 x 210 mm Type IGA 11 IP54 Part No. 902 486 Packing unit 1 pc(s) 142

ACCESSORIES Busbars / Modular Wiring System Allows for compact connection among the arresters and with other DIN rail mounted devices 900 610 MVS 1 4 MVS 1 4 Busbar single-phase, 4-pole 900 610 MVS 1 4 Single-phase unit 3 Number of contact studs 4-pole Max. installation width 4 mods. Nominal cross section 16 mm 2 Type MVS 1 4 Part No. 900 610 Packing unit 1 pc(s) MVS 4-pole, single-phase 900 848 MVS 1 7 MVS 1 7 900 848 MVS 1 7 Single-phase unit 3 Number of contact studs 7-pole Max. installation width 7 mods. Nominal cross section 16 mm 2 Type MVS 1 7 Part No. 900 848 Packing unit 1 pc(s) MVS 7-pole, single-phase 900 611 MVS 1 8 MVS 1 8 Busbar single-phase, 8-pole 900 611 MVS 1 8 Single-phase unit 3 Number of contact studs 8-pole Max. installation width 8 mods. Nominal cross section 16 mm 2 Type MVS 1 8 Part No. 900 611 Packing unit 1 pc(s) MVS 8-pole, single-phase 900 612 MVS 1 57 MVS 1 57 Busbar single-phase, 57-pole 900 612 MVS 1 57 Single-phase unit 3 Number of contact studs 57-pole Max. installation width 57 mods. Nominal cross section 16 mm 2 Type MVS 1 57 Part No. 900 612 Packing unit 1 pc(s) MVS 57-pole, singlephase 143