403 403 DRIESCHER Low voltage fusedswitch-disconnector system 403 • Rated current 400 A up to 1445 A

protected against accidental contact according to BGV A2, 1-pole and 3-pole switchable 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 Technical...

843 DRIESCHER - Low voltage fused-switch disconnector system 403 protected against accidental contact according to DGUV V3, 1-pole and 3-pole switchable The requirement of protection against accidental contact as well as switching under load was taken into consideration when developing this system. That means: maximum possible operational and functional saftey! The distribution system is made of high quality plastic press parts and guarantees an ideal circulation of air. 50 ON-OFF operations each were carried out at 550 V/320 V AC and cos φ 0,7 by 500 A, 750 A and 1000 A successfully. By all...

protected against accidental contact according to DGUV V3, 1-pole and 3-pole switchable Version 1-pole switchableVersion 3-pole switchable Optionalin OFF-position lockableVersion 3-pole switchable with grip 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 DGUV V3, 1-pole and 3-pole switchable 400 A 1) 2) Cable-covering bonnet, see page 10, on order Optionalin OFF-position lockableVersion 3-pole switchable with grip Part-no. Rated current for lv-fuses Operation 4) Use of lv-Fuses size 1 in 400 A and size 2 in 630 A system, is possible without changing the connecting element.

protected against accidental contact according to DGUV V3, 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

DRIESCHER - Low voltage fused switch disconnector system 403 protected against accidental contact according to DGUV V3, 1-pole and 3-pole switchable Incomer circuit for transformers up to 1000 kVA (1445 A) 1) Cable-covering bonnet, see page 10, on ordering Transformer-rating Part-no. lv-fuses Connection Operation Drawing-Nr. Weight in kg

DRIESCHER - Low voltage fused-switch disconnector system 403 protected against accidental contact according to DGUV V3, 1-pole and 3-pole switchable Incomer or coupling circuit according to drawing NN3-71303 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 Operation Part-no. Part-no. Rated current k l m Incomer or coupler Connection on theleft Connection on the right outgoing circuit By exchanging the connecting element on the slider...

protected against accidental contact according to DGUV V3, 1-pole and 3-pole switchable according to drawing NN3-71305 Operation Part-no. 1-pole 843 41112 1) Current transformer is not included in the delivery Coupling circuit 1000 Aaccording to drawing NN3-71307 Outgoing Operation Part-no. section l 2) Cover (page 10) and 3 cap nuts made of plastic only on ordering. Screw extension from metal nut 8 mm to 15 mm. Connecting bracket (drawing-no. NN4-40947), between coupling circuit and busbars only on ordering.

protected against accidental contact according to DGUV V3, 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 coupling circuit Part-no. 840 30003 Drawing-no. NN4-36540 Drawing-no. NN4-36540 Drawing-no. NN4-36540 Drawing-no. NN4-36540 Work and covering bonnet for distribution system type 403 acc. to DGUV V3 • acc. to drawing NN4-39041 and NN4-41231 Pic. Application Colour Rated current Part-no. Height Width Depth ■0 Covering bonnet for system with normal conn. transparent 400...

843 DRIESCHER - Low voltage fused-switch disconnector system 403 protected against accidental contact according to DGUV V3, 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 Ø Cu 35 mm2 Earthing accessory Ø Cu 50 mm2 Universal earthing case with earthing accessory Ø Cu 35...

DRIESCHER - Low voltage fused-switch-disconnector system 403 protected against accidental contact according to DGUV V3, 1-pole and 3-pole switchable Mounting of busbars with width more than 40 mm 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 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 disconector system 403 with distance pieces. Due to the extended distance pieces current transformers...