Page 109 of Circuit Breakers / Switches by Moeller Electric USA

108 technical data molded case switches moeller sk1230-1157en-na ns1 na max 125a ns2 na max 250a circuit-breakers disconnect switches up to 1200 a molded case switch rated impulse withstand voltage main contacts auxiliary contacts rated operational voltage rated uninterrupted current max iec/en 60947-2 annex l ul489/csa 22.2 no 5.1 overvoltage category/pollution degree rated insulation voltage switching capacity to ul 489 csa 22.2 no 5.1 240 v 480 v 600 v switching capacity divergent from the products for the na market rated short-circuit making capacity 240 v 400/415 v 440 v 525 v 690 v rated short-circuit breaking capacity icu to iec/en 60947 240 v icc icu to iec/en 60947-2 annex l test cycle o-t-co 400/415 v 440 v 525 v 690 v ics to iec/en 60947 240 v test cycle o-t-co-t-co 400/415 v 440 v 525 v 690 v lifespan mechanical maximum operating frequency lifespan electrical ac-1 400/415 v 690 v ac-3 400/415 v 690 v current heat loss per pole at iu1 total opening delay on short-circuit notes 1 uimp 6000 6000 690 125 125 iii/3 690 85 35 ­ icm icm icm icm icm icu icu icu icu icu ics ics ics ics ics operations operations operations operations operations 187 105 74 53 17 85 50 35 20 10 85 50 35 10 7.5 20000 120 10000 7500 7500 5000 13 10 8000 6000 690 250 250 iii/3 1000 150 100 50 330 330 286 105 53 150 150 130 50 20 150 150 130 37.5 5 20000 120 10000 7500 6500 5000 19 10 ue iu iu ui details relate to the maximum nominal current of the frame size

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