The ENW24161 is a 4-pole EasyPact NW air 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 per IEC 60947-2. The 50 kA at 690 V covers industrial 690 V distribution, though the Ics (service breaking capacity) matches the Icu at each voltage level, so it can reclose after a fault without derating. The IP40 enclosure keeps tools and fingers out but is not washdown-rated; mount in a cabinet for wet areas.
Deployment context
Fixed-mount base-plate installation with rear vertical or horizontal connections. The 115 mm connection pitch without spreader matches standard busbar layouts for 2000 A switchgear. Neutral position left, 4P 4d protected poles — covers full four-wire distribution with neutral protection configurable to 0.5 x Ir or 1 x Ir. Mechanical durability of 20,000 cycles with maintenance, 10,000 without; electrical durability of 6,000 cycles at 440 V and 4,000 at 690 V without maintenance — adequate for infrequent switching in distribution, not for frequent motor starting.
Certified to IEC 60947-2, with suitability for isolation marked on the device. The contact position indicator gives visual confirmation of open/closed state — a survey requirement for isolation duty. The breaker's 25 ms maximum breaking time and 70 ms maximum closing response time are typical for air power breakers in this class.