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DRIESCHER -Low voltage fused-switch-disconnector system 403 • Rated current 400 A upto 1445 A

protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable Index Technical data General Fused-switch disconnector system 403, 400 A and 630 A, 1 - and 3 pole switchable Fused-switch disconnector system 403, 400 A and 630 A, with conn. routed up or below Connection types for fused-switch disconnector system 403, 400 A, 630 A and 909 A Feeder circuits for transformers up to 1000 kVA (1445 A) Feeder and coupling circuits 400 A and 630 A Feeder and coupling circuits 1000 A Accessories Earthing and shorting arrangement Mounting of busbars with width more than 40 mm...

protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable The requirement of protection against accidental 50 ON-OFF operations each were carried out at contact as well as switching under load was taken 550 V/320 V AC and cos 9 = 0,7 by 500 A, 750 A and into consideration when developing this system. 1000 A successfully. By all switching operations the That means: maximum possible operational and arc was successfully extinguished . functional saftey! The distribution system is made of high quality plastic press parts and guarantees an ideal...

protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable 1) possible connection types, see page 6 2) Cable-covering bonnet, see page 10, on ordering Part-no. Rated Current For lv-fuses Operation b in mm f in mm g in mm s in mm Weig. in kg 4) Use of lv-fuses size 1 in 400 A system and size 2 in 630 A system, possible without changing the connecting element.

protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable 1) 2) Cable-covering bonnet, see page 10, on order Part-no. Rated current for lv-fuses Operation Use of lv-Fuses size 1 in 400 A and size 2 in 630 Asystem, is possible without changing the connecting element.

protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable Version with built in current transformers up to max. 630 A (Connection screws M12 x 55) Version with built in current transformers up to max. 1250 A (Connection screws M12 x 55) ® Transformer bus for system 403 up to max. 630 A (Connection type acc. to Pos. 1 to 4 @ Transformer bus for system 403 up to max. 1250 A (Connection screws M12 x 55) 1) for example 843 22 113 means distribution system 403 / 400 A, 1-pole switchable

protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable 630 kVA (909 A) connection above 1) Cable-covering bonnet, see page 10, on ordering 1000 kVA (1445 A) connection below Transformer-rating Part-no. lv-fuses Connection Operation Drawing-Nr. Weight in kg

protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable Examples for arrangement from incomer and outgoing circuit as well as from coupling and outgoing circuit The dimensions k, l and m are dependent on the different system sizes. 1) Cover (page 10) and 3 cap nut made of plastic only on ordering. Screw extension from metal nut 8 mm to 15 mm. Connecting bracket (drawing-no. NN4-40947) coupler circuit and busbars only on ordering. Rated current Incomer or coupler Part-no. Part-no. Rated current k Connection on theleft Connection on the right outgoing...

843 DRIESCHER - Low voltage fused-switch disconnector system 403 protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable Feeder and coupler 1000 A consisting of two parallel connected distribution system 403, 630 A System 403, 630 A, parallel connected 1) Current transformer is not included in the delivery System 403, 630 A, parallel connected Coupling circuit 1000 A according to drawing NN3-71307 Outgoing section 2) Cover (page 10) and 3 cap nuts made of plastic only on ordering. Screw extension from metal nut 8 mm to 15 mm. 2) Connecting bracket (drawing-no....

protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable Accessories Busbar-covering plate for the distribution system 301 and 403 Made of GFK • 2,5 mm, grey colour with cap nuts made of plastic ■ for system 301/160 A Part-no. 840 30005 for system 403/400 A Part-no. 840 30001 for system 403/630 A Part-no. 840 30002 ■ for coupling circuit Part-no. 840 30003 Work and covering bonnet for distribution system type 403 acc. to BGVA2 • acc. to drawing NN4-39041 and NN4-41231 Pic. Application ■0 Covering bonnet for system with normal conn. © Covering bonnet for system...

843 DRIESCHER - Low voltage fused-switch disconnector system 403 protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable Earthing and shorting arrangements Earthing slider (without earthing set), for conventional earthing accessories with 35 mm2 and 50 mm2 • for rated current 400 A Part-no. 840 31031 Drawing-no. NN4-71309 • for rated current 630 A Part-no. 840 31032 Drawing-no. NN4-71309 Earthing accessories Part-no. 773 11535 Part-no. 773 11550 Earthing accessory ∅ Cu 35 mm2 Earthing accessory ∅ Cu 50 mm2 Universal earthing case with earthing accessory ∅ Cu...

protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable Version 1a and 1b (Picture left) The busbars (> 40 mm) are connected to fused switch disconnector system 403 with distance pieces. Part-no. Rated Current Operation Connection Drawing-no. 843 62143 400 A 3-pole M12 x 35 NN4-22049 Copper-brackets can also be used instead of distance pieces (see Pic. 1b). Version 2 (Picture right) The busbar (> 40 mm) is connected to the fused switch dis-conector system 403 with distance pieces. Due to the extended distance pieces current transformers can be mounted...