/ SR0 Busbar System General Data / Busbar routing / Mounting components / Accessories /
SR0 Busbar System General Data Overview The SR0 busbar system is a modular system for busbars, for installation in distribution boards. The busbar clearance is 0 mm. The basic elements are Busbar routings Mounting components for mounting onto busbars Covers for ensuring protection against contact Design DIN VDE 0, DIN VDE 00 Part 00/ Part 0 Rated voltages: 90 V AC Rated short-circuit strength: 0 ka for a clearance of 0 mm between supports Rated current: depending on selected busbar up to 0 A AC The modular design facilitates planning and installation The design can be freely selected The terminal can be freely positioned Switching and modular installation devices can be integrated Adjustable multi-range busbar support for busbars x mm to 0 x 0 mm The set busbar width can be read at the side Fast mounting using mounting components, which can be plugged on and locked in place Fast mounting using snap-on covers and touch protection elements Terminals can be retrofitted onto the busbars without having to be inserted SR0 Busbar System High-quality material Busbar supports and fuse bases are manufactured from glass-fiber reinforced, thermoplastic polyester with the color RAL 0 (light gray). The material ensures excellent mechanical, chemical and electrical properties. Furthermore, the material has an extremely low flammability and meets the requirements of UL 94 V0. Planning When dimensioning the busbar routings, depending on rated currents, the ambient temperature and the Cu busbar temperature must also be taken into account. The location and the ability of the busbar system to dissipate heat through convection also plays a key role in this calculation. As conditions can differ in each distribution system planning instructions can be found on page /. Panel widths: The SR0 busbar system is designed for ALPHA distribution systems and is suitable for the following panel widths W = 0 mm W = 00 mm W = 0 mm W4 = 000 mm and W = 0 mm. The panel widths determine the required busbar length. 4 4 I_04a 9 $ -pole NEOZED bus-mounting base % -pole DIAZED bus-mounting base & Panel infeed ( Adapter for modular installation devices according to DIN 40 ) LV HRC fuse switch disconnectors * Edge section + End cover, Blanking cover - Partition. DIAZED fuse and screw cap / NEOZED fuses and screw caps 0 Cu busbars Support for residual field cover Busbar holders Support for partition and edge section Not illustrated: LV HRC bus-mounting 0 /
Overview The busbar supports are set by adjusting their spacers to the required busbar dimensions. After inserting the busbars in the busbar supports, they are positioned by screwing together the busbar supports. The recommended spacing for supports is 0 mm. The terminals can be subsequently mounted onto the busbars without having to be inserted laterally. $ Busbar holder, -phase % Busbar holder N/PE & Incoming and outgoing terminals ( Terminal ) Cu busbar Application The use of busbar runs with their versatile rail-adaptable connection, switching and installation devices is an ideal and cost-effective electrotechnical enhancement of modern distribution boards due to their small footprint, compact design and quick assembly contacts. Mounting is carried out on distribution board rails or mounting plates. The direct snap-on contacts of the rail-adaptable switching and installation devices on the Cu busbars drastically reduces distribution panels and assembly times, as well as the transfer resistance of the connections, compared to conventional installation. The basic elements of the busbar runs are as follows: busbar holders, enclosures and cover parts, channels and supports, as well as the rail-adaptable connection, switching and installation range such as ingoing/outgoing terminals, incoming supply, adapters for modular installation devices according to DIN 40, LV HRC fuse switch disconnectors and three-pole NEOZED and DIAZED bus-mounting fuses. Function Dynamic rated short-circuit strength The electrodynamic load of the busbar run depends on the level of short-circuit current, the length of the busbar section through which the current flows, the support spacing of the busbar holders and, of course, on the distance between the busbars themselves. Because, for example, an LV HRC fuse is connected upstream to the busbars in the protective device, the let-through current i D is the maximum current to flow through this protective device. The value i D depends in turn on the maximum system short-circuit current and the current-limiting action of the protective device used. The possible let-through values of the protective equipment are specified by the manufacturers in the form of a current limitation diagram as a function of the so-called prospective short-circuit current (r.m.s. value of the possible rated short-circuit current for the system). You will find the current-limiting characteristics for Siemens fuse links in the Chapter "Low-voltage fuse systems". For busbar holders with power rails of x mm to 0 x mm, the distance between the holders of the support spacing should be adapted to suit the bars in the distribution board and, if possible, should not exceed 0 mm. When using power rails of x mm, 0 x mm, x 0 mm to 0 x 0 mm the distance can also be up to 00 mm. In the case of larger distances, subcarriers must be fitted as increased support spacing reduces the dynamic stability. It is essential to ensure that the permissible current carrying capacity of the individual busbars is not exceeded. A center infeed is required in the limit range. However, the infeed can also be carried out from both sides of the busbar ends. SR0 Busbar System Busbar routing I_04 Busbar holders and fuse bases are manufactured from glass-fiber reinforced, thermoplastic polyester (color RAL 0, light gray). The material ensures excellent mechanical, chemical and electrical properties. Furthermore, the material has an extremely low flammability and meets the requirements of UL 94 V0. This satisfies the load requirements at rated operational voltage 00 V and rated currents at 00 A to 0 A, as well as the rated short-circuit strength 0 ka. When dimensioning the busbar routings, depending on rated currents, the ambient temperature and the Cu busbar temperature must also be taken into account. The location and the ability of the busbar system to dissipate heat through convection also plays a key role in this calculation. Because conditions can vary for each distribution board, the values in the following table serve as a guideline only. However, they must be applied to the entire power rail length. Diagram of the dynamic short-circuit strength of the busbars i D : Let-through values (ka) of the LV HRC fuse links, utilization category gl/gg with rated current 00 A to 0 A for prospective short-circuit current I p = 0 ka. 4 Distance of the busbar holders in mm Let-through current of the fuse links utilization category gl/gg Busbar dimensions in mm 9 0 /
SR0 Busbar System Busbar routing Technical specifications Continuous currents depending on the Cu power rail dimensions and Cu busbar temperatures at C ambient temperature Cu busbar dimensions H D Continuous current for open busbar run ambient temperature C Continuous current of fuse link utilization category gl/gg mm mm A A 00 00 0 0 0 0 0 44 400 0 0 0 0 0 00 400 400 0 0 00 0 44 400 0 0 0 0 As far as other types of upstream protective devices are concerned, please observe the permissible continuous current of the power rail. Selection and ordering data Dimensions Order No. Weight PS*/ W x H x D item P. unit mm mm mm kg Items Busbar support for SR0 busbar system for busbars with a bar thickness of or 0 mm and a,, 0, or 0 mm busbar height 0 mm busbar distance external -phase 0 0 0/ US9 -AA00 0.4 0 internal -phase 0 0/ US9 -AA00 0.00 0 internal 4-phase 0 4 0/ US9-4AA00 0.9 0 N/PE busbar support for mounting onto busbar supports, can also be used as single support -phase 0 90 0/ SH 0 0.00 /0 SR0 connecting terminal plate -phase, for conductors from 0 to 00 mm (illustration without cover) SH. Connector block for SR0 busbars -phase, for conductors from to 0 mm US9 -AA00 0.0 /4 * You can order this quantity or a multiple thereof.
Accessories Terminals SR0 Busbar System Busbar routing Conductor crosssection Tightening Order No. Weight PS*/ torque item P. unit up to mm Nm kg Items Terminals for one busbar mm mm.....4 JH4 0 0.00....0 JH4 04 0.00 JH4 0 JH4 04 JH4 0 JK 0 JH4 0 JK 0... 0.0 JH4 0 0.00... 9 0.0 JH4 0 0.00... 0 0.0 JK 0 0.090 Terminals for two busbars mm 0 mm....0 JH4 0 0.00... 0 0.0 JH4 0 0.00... 0 0.0 JK 0 0.090 Extension terminal for mm mm busbar busbar not included in delivery set.0 JK 0 0.00 set Terminal for circular conductor 0 mm mm to 0 mm 0 mm 0... 40 US9 4-BB00 0.0 9 0 * You can order this quantity or a multiple thereof. /
SR0 Busbar System Busbar routing Dimensional drawings US9 busbar holders for SR0 busbar system US9 -AA00 US9 -AA00 US9-4AA00 N/PE busbar support US9 -AA00 Connector block for SR0 busbars US9 -AA00 shown closed shown open /
Overview $ -pole NEOZED bus-mounting base % -pole DIAZED bus-mounting base & Panel infeed ( Adapter for modular installation devices according to DIN 40 ) LV HRC fuse switch disconnectors SR0 Busbar System 4 Mounting components Selection and ordering data I_0a Size Rated current Rated Order No. Weight PS*/ voltage item P. unit A V kg Items NEOZED SR0 bus-mounting bases for busbar thickness mm for NEOZED adapter sleeves -pole D0 400 SG 0 0.4 /0 excess width with clearance for wiring D0 400 SG 04 0.4 /0 for busbar thickness 0 mm NEOZED adapter sleeves -pole D0 400 SG 0 0. /0 excess width with clearance for wiring D0 400 SG 0 0.49 /0 DIAZED SR0 bus-mounting bases for busbar thickness mm for use of DIAZED SR0 adapter rings -pole DII 00 SF 04 0.0 /0 DIII 90 SF 4 0. /0 for use of DIAZED screw adapters -pole DII 00 SF 0 0. /0 DIII 90 SF 0.0 /0 for busbar thickness 0 mm for use of DIAZED SR0 adapter rings -pole DII 00 SF 0 0. /0 DIII 90 SF 0. /0 for use of DIAZED screw adapters -pole DII 00 SF 0 0.0 /0 DIII 90 SF 0. /0 9 0 * You can order this quantity or a multiple thereof. /
SR0 Busbar System Mounting components Selection and ordering data Size MW Order No. Weight PS*/ item P. unit kg Items NEOZED SR0 covers D0. SH 4 0.0 /0 excess width with clearance for wiring D0 SH 4 0.0 /0 with double width for a larger clearance for wiring D0 SH 4 0.040 /0 DIAZED SR0 covers DII. SH 04 0.00 /0 DIII. SH 4 0.0 /0 with double width for a larger clearance for wiring DII 4. SH 04 0.04 /0 DIII.4 SH 4 0.0 /0 Size Thread For fuse links Order No. Weight PS*/ item P. unit A kg Items DIAZED SR0 adapter rings only for DIAZED SR0 bus-mounting bases DII E SH 0 0.00 0 4 SH 0 0.00 0 SH 0 0.00 0 0 SH 04 0.00 0 SH 0 0.00 0 0 SH 0 0.004 0 DIII E SH 0 0.00 0 4 SH 00 0.00 0 SH 0 0.00 0 0 SH 0 0.00 0 SH 0 0.00 0 0 SH 04 0.00 0 SH 0 0.00 0 SH 0 0.00 0 0 SH 0 0.00 0 For NEOZED screw caps, adapter sleeves and fuse links, see the Chapter "Low-voltage fuse systems", NEOZED fuse system. For DIAZED screw caps, screw adapters and fuse links, see the Chapter "Low-voltage fuse systems", DIAZED fuse system. / * You can order this quantity or a multiple thereof.
Selection and ordering data SR0 Busbar System Mounting components Width Order No. Weight PS*/ item P. unit mm kg Items SR0 LV HRC bus-mounting fuse bases Size 000 and 00 with cover, top terminals, for and 0 mm busbar thickness -pole Terminals up to 0 mm Rated voltage 90 V AC with saddle-type terminal connection NH4 0 0.4 with flat termination, screw M NH4 0 0.4 I u For LV HRC Conductor crosssection Type of connection/ Order No. Weight PS*/ links adapter item P. unit A Size up to mm kg Items Fuse switch disconnectors for SR0 busbars climate-proof, rated operational voltage 90 V AC delivered without LV HRC fuse links 00 000 and 00.... top NP40 -CK0 0.9 bottom NP40 -CJ0 0.90 0 000 and 00 up to 0 top NP40 -CE0.00 bottom NP40 -CF0.00 0 000 and 00.... 0 top NP40 -CK0.90 (SIGUT terminal) bottom NP40 -CJ0.40 0 0 and max. 0 top or bottom NP4 -CG0.0 400 max. 40 top or bottom NP4 -CG0.440 0 max. 40 top or bottom NP44 -CG0.0 For additional busbar adapters and fuse switch disconnectors, see the Chapter "Low-voltage fuse systems, LV HRC fuse system, LV HRC fuse switch disconnectors". 9 0 * You can order this quantity or a multiple thereof. /9
SR0 Busbar System Mounting components Selection and ordering data Rated current Rated Order No. Weight PS*/ AC voltage AC item P. unit A V kg Items NEOZED SR0 bus-mounting switch disconnectors for busbar thickness and 0 mm for -phase busbar system Width:. MW -pole Size D0 400 SG 0 0.00 SR0 bus-mounting disconnector for 0 x mm cylindrical fuses for busbar thickness and 0 mm for -phase busbar system -pole 90 NW 40 0.00 Auxiliary switch changeover contact, 4 to 0 V AC, AC A SH 0.00 Lateral module for NEOZED SR0 bus-mounting switch disconnectors for better heat conduction at permanent loads over A Width: 0. MW SH 0.00 / Reducer for NEOZED fuse links D0 in the SR0 bus-mounting switch disconnector SH 0.00 0 /0 * You can order this quantity or a multiple thereof.
Dimensional drawings NEOZED SR0 bus-mounting bases D0/ A (a = mm) (t = busbar thickness) D0/ A (a = mm) SR0 Busbar System Mounting components DIAZED SR0 bus-mounting bases DII/ A (a = 4 mm) DIII/ A (a = mm) SG 0 (t = mm), SG 0 (t = 0 mm) NEOZED SR0 cover D0/ A SG 04 (t = mm), SG 0 (t = 0 mm) SF 04, SF 0 (t = mm), SF 0, SF 0 (t = 0 mm) DIAZED SR0 cover DII/ A SF 4, SF (t = mm), SF, SF (t = 0 mm) DIII/ A 9 SH 4 -fold SH 4.-fold SH 4 -fold 0 LV HRC SR0 bus-mounting fuse bases, -pole NH4 0, NH4 0 SH 04 (-fold: a = 4 mm) SH 04 (-fold: b = 4 mm) SH 4 (-fold: a = mm) SH 4 (-fold: a = 4 mm) /
SR0 Busbar System Mounting components Dimensional drawings Busbar adapters for SR0 busbars US -NA00 US -NA0 NEOZED SR0 bus-mounting switch disconnectors/ SR0 bus-mounting disconnectors Fuse switch disconnectors for SR0 busbars B > B SG 0 NW 40 Rail distance 0 mm NP40 NP4. (not NP40 ) = @ - # A? Type Dimensions a b c d f NP4 4 4 4. 0 NP4 0 0 4 0 NP44 00 94. 4 0 /
Overview SR0 Busbar System Accessories $ % & ( ) * +, Edge support Base Edge Support for the residual field cover End cover Blanking cover Busbar support, -phase N/PE busbar support 4 Selection and ordering data SR0 covers I_044a Length Order No. Weight PS*/ item P. unit mm kg Items Bases Height 0 mm, for busbars 00 SH.00 90 mm, for 4 busbars SH.00 9 0 Blanking cover Depth mm 000 SH 0.0 Cover profiles for busbars up to 0 x mm 000 US9 -AA00 0. 0 up to 0 x 0 mm US9 -BA00 0.0 0 Edges H x W x mm, for busbars 00 SH 0. x mm, for 4 busbars SH 0 0. Partition slotted H x W x mm 00 SH 0. * You can order this quantity or a multiple thereof. /
SR0 Busbar System Accessories Selection and ordering data SR0 covers Order No. Weight PS*/ item P. unit kg Items End covers for busbar support, lateral Height 0 mm SH 0.0 4 set 90 mm ( set = items) SH 4 0.04 set End covers for busbar support, top -pole US9 -AC00 0.00 0 4-pole US9 -AB00 0.0 Edge support and support for partition SH 0.0 Support for blanking cover for blanking cover SH 0.040 4 /4 * You can order this quantity or a multiple thereof.
Dimensional drawings Blanking cover SH SR0 Busbar System Accessories End cover for busbar support, lateral SH SH 4 Edge SH, SH 0 Edge support and support for partition SH 9 Partition SH 0 Support for the blanking cover SH ' $ $ # " " # # $ #! > #! " & # /
SR0 Busbar System Notes /