The Schneider Electric ENW24151 is a 4-pole EasyPact NW drawout circuit breaker rated 1250 A at 40 °C, with a breaking capacity of 66 kA Icu at 220–440 V AC and 50 kA Icu at 690 V AC, both per IEC 60947-2.
Rated operational voltage (Ue) is 690 V AC, and rated insulation voltage (Ui) is 1000 V AC — so the breaker is suitable for 480 V and 600 V class systems common in North America, as well as 690 V industrial networks in Europe. The 66 kA Icu at 440 V gives selectivity headroom for high-fault installations — downstream breakers can be rated lower if the upstream let-through is coordinated. The drawout mounting and rear connection mean the breaker is intended for a fixed chassis with stab-in primary connections, typical of a switchgear lineup.
Integration and mounting notes
Mounting is drawout on a rail, with a connection pitch of 115 mm without spreader. The neutral position is left, and connection can be horizontal or vertical from the rear. Pollution degree 4 per IEC 60664-1 indicates the breaker is rated for harsh conductive environments, such as industrial atmospheres with dust or condensation.