Page 108 of Circuit Breakers / Switches by Moeller Electric USA

technical data disconnect switches derating moeller sk1230-1157en-na n3 550 a max disconnect switches rated impulse withstand voltage uimp main contacts auxiliary contacts rated operational voltage rated uninterrupted current max iec/en 61131-3 technical data divergent from the products for the iec market ul489 csa 22.2 no 5.1 overvoltage category/pollution degree rated insulation voltage switching capacity rated short-circuit making capacity rated short-time withstand current t 0.3 s t=1s rated conditional short-circuit current with back-up fuse 400/415 v 690 v with downstream fuse 400/415 v 690 v rated making and breaking capacity rated operational current ac-22/23a n4 1200 a max 107 ue iu iu v v v ac a a 8000 6000 690 630 550 8000 6000 690 1600 1200 ue icm icw icw v ac ka ka ka a gg/gl ka ka a gg/gl ka ka iii/3 1000 25 12 12 550 100 80 630 100 100 iii/3 1000 53 25 25 2 x 600 100 80 2 x 600 100 80 415 v 690 v lifespan mechanical maximum operating frequency lifespan electrical to iec/en 60947-4-1 section b ac-1 400/415 v 690 v ac-3 400/415 v 690 v current heat loss per pole at i u1 notes 1 the 3 690 ie ie operations a a ops/h 550 550 15000 60 5000 3000 3000 2000 40 1200 1200 10000 60 3000 2000 2000 1000 97 operations operations operations operations w current heat loss per pole ratings refer to the maximum current rating of the frame size v max 160 kw nzm1 ns1 125 a nzm2 ns2 250 a without with xsv tm nzm3 n3 ns3 600 a without e with xav nzm4 n4 ns4 1200 a without with xav permissible loading at different ambient temperatures derating open 20°c 30°c 40°c 50°c 60°c 65°c 70°c notes 100 100 100 100 86 83 79 100 100 100 100 90 85 80 100 97 92 87 81 78 75 100 100 100 94 88 84 81 100 100 100 100 90 85 80 96 92 87 83 78 75 73 100 100 100 100 87 85 82 100 98 93 89 85 83 80 xsv plug-in unit xav withdrawable unit tm thermomagnetic e electronic circuit-breakers disconnect switches up to 1200 a

[close]