The Schneider Electric ENW24237 is a fixed-mount EasyPact NW air circuit breaker rated for 800 A at 40 °C, configured as a 4-pole unit (4P). It's designed for distribution duty in industrial switchboards and main low-voltage panels, built to IEC 60947-2. Breaking capacity is 50 kA Icu at 220...440 V AC, 42 kA Icu at 690 V AC — both at 50/60 Hz. The Ics (service breaking capacity) matches the Icu at those voltages, meaning the breaker can be reclosed after clearing a fault at full rated interruption without derating. That's Category B utilization, with 6000 cycles electrical durability at 440 V without maintenance. Rated insulation voltage is 1000 V AC, operational voltage 690 V AC, with a 12 kV impulse withstand.
For a BOM line requiring a 800 A, 4P, fixed-mount air breaker with 50 kA interrupting capacity at 440 V, this order code fits directly.
IP40 protection — suitable for indoor panel mounting where no water spray is present. Push-button control on the front; contact position indicator visible. Ambient operating range is -5 to 60 °C.
Conforms to IEC 60947-2. The breaker carries a 12 kV rated impulse withstand voltage (Uimp). Storage temperature range: -40 to 85 °C without control unit, -25 to 85 °C with control unit.