The Schneider Electric ENW24287 is a 4-pole switch disconnector from the EasyPact NW range, rated for 1250 A in AC-23A utilisation category at 690 V AC.
The headline number is 1250 A rated operational current (Ie) in AC-23A at 690 V — that's the motor-switching duty class, not a resistive-heat figure. The rated insulation voltage (Ui) is 1000 V AC, and impulse withstand (Uimp) is 12 kV, so it's comfortable in 690 V line-to-line systems with decent surge margin. Short-time withstand (Icw) is 66 kA for 1 second, and making capacity (Icm) is 143 kA peak — that tells you the switch can close onto a fault without destroying itself, which matters for coordination studies.
Durability and environmental limits
Electrical durability in AC-23A is 6,000 cycles at 440 V and 4,000 cycles at 690 V — that's the contact life before replacement is due. Operating temperature range is -5 to 70 °C, storage is -40 to 85 °C.
