The Schneider Electric ENW22349 is a drawout chassis from the EasyPact NW range, rated for 800 A at 40 °C across 4 poles with H-class breaking capacity. This is the mechanical frame that carries the switching mechanism in a low-voltage air circuit breaker — the part you bolt into the switchgear cubicle, not the plug-in breaker itself. The drawout mounting means the breaker module slides in and out for maintenance without disturbing the bus connections, which is standard for high-current distribution in industrial plants and data centers.
The chassis measures 440 mm high by 400 mm wide by 560 mm deep. It's designed for drawout mounting in a fixed switchgear cubicle — the breaker slides into this frame and connects to the busbars via primary disconnects. The 4-pole configuration covers three-phase plus neutral, which is the standard for 4-wire distribution systems. The H breaking capacity code indicates a higher interrupting rating than the standard N code, so it's suited for installations with higher fault current potential.