The Schneider Electric ENW24182 is a 4-pole switch disconnector from the EasyPact NW range, rated 1000 A in AC-23A utilisation category at 690 V AC. The drawout mounting allows the chassis to be racked out for safe maintenance without disconnecting main power cables, a feature that matters when a line-down event means a freezer starts thawing.
Rated operational current is 1000 A in AC-23A at 690 V. The short-time withstand current (Icw) is 50 kA for 1 s or 25 kA for 3 s, both conforming to IEC 60947-3. This tells you the switch can hold closed through a downstream fault long enough for an upstream breaker to clear, which is the basis for selective coordination in a distribution board. Ambient operating range is -5 to 70 °C, and storage range is -40 to 85 °C, which covers cold storage and freezer anteroom conditions without issue. The switch is certified as suitable for isolation per IEC 60947-3, meaning it provides a visible-break disconnection point for safe maintenance. Rated insulation voltage (Ui) is 1000 V AC, and impulse withstand (Uimp) is 12 kV — this gives headroom for 690 V systems and handles switching surges common in large motor circuits. Electrical durability is 6000 cycles at 440 V and 4000 cycles at 690 V without maintenance; mechanical durability is 20000 cycles with maintenance, 10000 without. For a main disconnect that may be operated once a shift, this is ample; for frequent switching duty, factor in the maintenance interval.