The Schneider Electric ENW24180 is a 3-pole switch disconnector in the EasyPact NW range, rated for 4000 A in AC-23A duty at 690 V AC. That AC-23A utilisation category means it handles switching of motor loads and other highly inductive circuits — not just resistive break — so it's sized for heavy distribution or large motor feeder isolation where frequent on-load switching is expected. Rated insulation voltage sits at 1000 V AC, with an impulse withstand of 12 kV per IEC 60947-3, and the short-time withstand current is 55 kA for 1 s or 30 kA for 3 s. The short-circuit making capacity hits 121 kA AC — that's the peak current it can close into a fault without welding contacts. For a 4000 A frame, those numbers give real selectivity headroom downstream. The IP40 enclosure keeps tools and fingers out but isn't sealed against water; mount it inside a panel or switchgear cubicle.
Deployment and integration
Fixed-mount design on a base plate, with rear connections spaced at 115 mm pitch without a spreader. That pitch is standard for busbar or cable tap-offs in LV switchgear. The 422 mm width and 352 mm height fit typical cubicle compartments; depth of 297 mm leaves room for rear cabling without forcing a deep enclosure. Continuous rated duty — no derating needed for sustained load. The contact position indicator gives a visible break confirmation, which is required for isolation applications per IEC 60947-3. Suitability for isolation is explicitly marked as 'Yes' on the standard.
Electrical durability is specified at 5000 cycles at 440 V and 2500 cycles at 690 V in AC-23A without maintenance. Mechanical durability reaches 20000 cycles with maintenance, 10000 without. Those are the numbers to plug into your maintenance schedule — after that, contact wear inspection is due.