Drawout mounting means the breaker mechanism slides in and out of the cradle without disturbing the line and load connections — essential for switchgear where you need to rack out for maintenance or isolation without unbolting busbars.
The chassis footprint is 560 mm deep by 400 mm wide by 440 mm high. That depth is the critical dimension for existing switchgear cubicles — verify the enclosure depth clears 560 mm before the breaker is racked in, including the rear arc-chamber clearance the EasyPact NW requires.