The ENW24246 is a 4-pole drawout circuit breaker from the EasyPact NW range, rated 1000 A at 40 °C. For the sourcing buyer: this is the main line-side breaker for a 1000 A bus, not a feeder or branch device. Breaking capacity is 66 kA Icu at 220...440 V AC and 50 kA Icu at 690 V AC, both per IEC 60947-2. The Icu is the ultimate short-circuit capacity the breaker can interrupt once and still be functional afterward. Drawout mounting means the breaker chassis stays wired to the bus; the moving portion pulls out for inspection or swap without disturbing the cable connections. Rear connection and vertical/horizontal orientation are both supported — check your switchgear layout for the connection pitch of 115 mm without spreader.
Pollution degree 4 per IEC 60664-1 is the highest industrial severity: conductive dust or heavy condensation expected. The breaker is designed for that environment, but the enclosure around it must keep the IP40 rating intact. Ambient operating range is -5 to 60 °C; storage from -40 to 85 °C without control unit, -25 to 85 °C with control unit. Electrical durability at 440 V is 6,000 cycles without maintenance — enough for a main breaker that operates infrequently.