What this 1000 A drawout breaker is for
It carries a 50 kA Icu breaking capacity at 440 V AC and 42 kA at 690 V AC, both per IEC 60947-2 — that means it clears faults at those levels without the arc re-striking, which is what you need for main or feeder protection in a plant where fault currents can hit that range. Drawout mounting lets you rack the breaker out for maintenance without disconnecting power cables, a standard feature for switchgear where uptime matters.
The IP40 enclosure keeps tools and fingers out but doesn't seal against water — mount it in a cabinet.
Drawout mounting on rails, rear-connected at 115 mm pitch without spreader. Dimensions are 441 mm wide by 439 mm high by 395 mm deep — that's a substantial footprint, so check the switchgear cell size before committing. The control is push-button operated with a contact position indicator. Mechanical durability is 20,000 cycles with maintenance, 10,000 without — for a main breaker that's cycled infrequently, that's plenty; for a frequently switched load, consider the electrical durability: 6,000 cycles at 440 V, 4,000 at 690 V without maintenance.