MODEL: MD7ST. [3] LOOP DISCONNECT FUSE 0: Without 1: With (CENELEC/ATEX approval Not selectable)

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1 MODEL: MDST Lightning Surge Protectors for Electronics Equipment M-RESTER LIGHTNING SURGE PROTECTOR FOR STANDARD SIGNAL LINE (ultra-slim) Functions & Features High discharge current capacity 0 ka ( / 0μs), 1 ka (10 / 30 μs) Ultra-thin -mm-wide module can be mounted in high density Excellent protection employing multi-stage SPD circuits DIN rail mounting and grounding terminal provided CE marking (.) 9 (3.4) 9 (3.6) mm (inch) MODEL: MDST[1][][3][4] ORDERING INFORMATION Code number: MDST-[1][][3][4] Specify a code from below for each [1] through [4]. (e.g. MDST-4FF00) For the safety approval code, specify the product s destination country using Ordering Information Sheet (No. ESU-0). [3] LOOP DISCONNECT FUSE 0: Without 1: With (CENELEC/ATEX approval Not selectable) [4] SAFETY APPROVAL 0: None : CENELEC intrinsic safety (ATEX) RELATED PRODUCTS Loop disconnect fuse (model: MDF) GENERAL SPECIFICATIONS Construction: Slim-sized front terminal structure Degree of protection: IP0 Connection: Euro terminal block (torque 0.3 N m) Applicable wire size: 0.. mm : DIN Rail Housing material: Flame-resistant resin (black) Loop disconnect fuse: Current rating 0 ma (Separates the protected device from the power source when the former fails in the shortcircuit mode.) INSTALLATION Operating temperature: - to C (-13 to 1 F) (See Safety Parameters for use in a hazardous location.) Operating humidity: 30 to 90 %RH (non-condensing) Mounting: DIN Rail (TH3-., 1-mm-thick) Oxide film on the surface of an aluminium rail may lower the electric conductivity between this module and the ground. Use a steel or copper rail. Weight: 0 g (. oz) [1] NOMINAL VOLTAGE 4: 4 V DC 60: 60 V DC [] SHIELD TERMINAL (line / earth) FF: / FG: / GF: / GG: / MDST SPECIFICATIONS ES-0 Rev.6 Page 1/6

2 MODEL: MDST PERFORMANCE MODEL NO. NOMINAL VOLTAGE MDST-4 MDST-60 SHLD TERMINAL FF FG GF GG FF FG GF GG Max. continuous Line to Line 30V 0V operating voltage Line to Earth ±160V 30V ±160V 0V (Uc) Line to SHLD ±160V 30V ±160V 0V SHLD to Earth ±160V short ±160V short ±160V short ±160V short Voltage protection Line to Line 60V 11V level (Up) Line to Earth ±00V ±60V ±00V (1. / 0 µs) Line to SHLD ±100V ±00V ±60V ±100V ±00V ±11V SHLD to Earth ±00V short ±00V short ±00V short ±00V short Leakage current Line to Line µa Other sections µa µa Response time Line to Line 4 nsec. 4 nsec. Max. discharge current (Imax) Nominal current (IN) Other sections 0 nsec. 0 nsec. 0kA ( / 0 µs), 1.0kA (10 / 30 µs) 0mA Internal series Without fuse 4.Ω ±10% per line 10Ω ±10% per line resistance With fuse.ω ±10% per line 1.Ω ±10% per line STANDARDS & APPROVALS CE conformity: ATEX Directive (94/9/EC) Ex ia EN : 00 Category 1G EN : 00 EMC Directive (004/10/EC) EMI EN : 00 EMS EN : 00 Safety approval: CENELEC: Intrinsic safety (ATEX) II 1G, Ex ia IIC; T4 and T EN : 006 EN : 00 EN : 00 Surge protection: IEC : 000 (Categories C1, C, D1) SAFETY PARAMETERS CENELEC / ATEX IS DATA MDST-4 MDST-60 Ui (Vmax) 3V 60V Ii (Imax) any any Ci 10 nf nf Li 0 µh 0 µh Temp. Class Range Parameter - to 40 C 1.3W Pi T4 - to 60 C 1.W - to 0 C 1.0W T - to 40 C 1.0W MDST SPECIFICATIONS ES-0 Rev.6 Page /6

3 MODEL: MDST DESCRIPTIONS SELECTING SHIELD TERMINAL TYPE The surge protector has a dedicated shield terminal effective for easy shield wiring and surge protection. Review the shield method (grounding, non-grounding, connecting to SG, etc.) required by the protected device or system. There is no electrical effect to the shield by installing the surge protector, but an appropriate shield terminal type must be selected to suit user applications. Refer to the flow chart below to choose. Cable With Without to Signal Isolated to Signal Not Isolated Signal to Earth Isolated Signal to Earth Not Isolated Not Grounded Grounded Not Grounded Grounded FF FG GF GG FF GG SELECTING LOOP DISCONNECT FUSE Specify Loop disconnect fuse type when multiple transmitters are connected to single power bus. Loop disconnect fuse is used to separate a transmitter loop from the power bus when it fails in the shortcircuit mode. 4 0mA Field-mount Transmitter Surge Protector MDST 4 1 DC Power Supply (model: MD6x) 0Ω ADAPTOR Power Bus To other 4 0mA loops MDST SPECIFICATIONS ES-0 Rev.6 Page 3/6

4 MODEL: MDST CONNECTION EXAMPLES 4 0mA Field-mount Transmitter Surge Protector Current Loop Supply 4 1 (model: MD6x) *4 ADAPTOR *1 * *3 Crossover Wire FG *1. Oxide film on the surface of an aluminium rail may lower the electric conductivity between this module and the ground. Use a steel or copper rail. *. Be sure to ground the DIN rail. Recommended grounding resistance 100Ω *3. Cross-wire between the DIN rail and the metal housing of the protected device to equalize the earth potential. Ground only the surge protector when the protected device has no ground terminal. *4. wiring method is an example. Proceed according to the system requirements. EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch) M3 EURO TERMINAL WIRE INSERTION ANGLE: approx LOOP DISCONNECT FUSE (option) 4 6 ADAPTOR (3 mm wide) 9 (3.4) (.4) 1.9 (.0) (.) 9 (3.6) [1. (.0)] MDST SPECIFICATIONS ES-0 Rev.6 Page 4/6

5 MODEL: MDST SCHEMATIC CIRCUITRY SHIELD TERMINAL MODEL NO. SCHEMATIC CIRCUITRY APPLICATIONS MDST-xFF0x MDST-xFF1x 4 1 Standard type To protect a device having isolation between Signal and Earth. When SHLD should be floating against the earth. (single-end grounding) ADAPTOR MDST-xFG0x MDST-xFG1x 4 1 To protect a device having isolation between Signal and Earth. When SHLD should be grounded. (single- or bothend grounding) ADAPTOR MDST-xGF0x MDST-xGF1x 4 1 To protect a device having isolation between Signal and Earth. When SHLD wire should be connected to SG terminal of the protected device. (SHLD is not grounded to the earth.) ADAPTOR MDST-xGG0x MDST-xGG1x 4 1 To protect a device which does not have a good dielectric strength between Signal and Earth. ADAPTOR Sections enclosed with broken line may differ depending upon the models; without option, fuse circuit is shorted. MDST SPECIFICATIONS ES-0 Rev.6 Page /6

6 MODEL: MDST Specifications are subject to change without notice. MDST SPECIFICATIONS ES-0 Rev.6 Page 6/6