The ENW22335 is a chassis for the EasyPact NW range, rated 1250 A at 40 °C with N breaking capacity across 4 poles. At 1250 A continuous, this is sized for the main incoming feeder or a large bus-tie in a 400 V to 690 V distribution board — not a branch circuit. The N breaking capacity code means it handles standard-level fault interruption for this frame size; if your system demands higher SCCR (like H or L class), this chassis isn't the one. Drawout mounting means the moving portion pulls out for inspection or swap without unbolting busbars — a line-down saver when you need to rack a unit out under load.
Drawout chassis means the enclosure needs a cutout and guide rails — not a bolt-in. The 560 mm depth is the full chassis travel, so account for that behind the door plus cable bending radius. Four poles cover three-phase plus neutral, common for a main breaker in a 4-wire system. At 1250 A, the busbar connection is typically multiple bars per phase; plan your lugging and torque spec accordingly.