The Schneider Electric ENW24153 is an EasyPact NW drawout circuit breaker rated 2000 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 conforming to IEC 60947-2.
Drawout mounting and panel integration
The ENW24153 uses a drawout mounting mechanism on a rail, which means the breaker chassis stays wired to the bus while the moving portion can be racked out for maintenance or replacement without de-energizing the entire switchboard — a standard practice for high-current distribution where downtime costs are high. The 4-pole configuration with neutral on the left and rear connection positions suits fixed-pattern switchgear layouts where busbar runs are pre-drilled.
Electrical durability and duty cycle
Rated for Category B utilization, the ENW24153 delivers 6000 electrical cycles at 440 V without maintenance and 4000 cycles at 690 V. Mechanical durability is 20000 cycles with maintenance, 10000 without. The 25 ms maximum breaking time and 70 ms maximum closing response are fast enough for most distribution protection schemes, but if you need arc-flash mitigation below those thresholds, verify coordination with your upstream relay settings.
Insulation and environmental limits
Rated insulation voltage (Ui) is 1000 V AC, and operational voltage (Ue) is 690 V AC — both at 50/60 Hz. Storage temperature range is -40...85 °C without the control unit, -25...85 °C with it; operating range is -5...60 °C.