It mounts via drawout mechanism, meaning the moving portion can be racked out for inspection or replacement without disturbing the fixed housing — standard practice for switchgear where uptime matters and isolation is required before access. The N breaking capacity covers standard distribution-level fault interruption.
Drawout mounting means the chassis slides into a fixed cradle with disconnectable primary and secondary contacts. The panel cutout and cradle must match the EasyPact NW drawout footprint — the 400 mm width and 440 mm height define the envelope for the fixed portion; the 445 mm depth includes the racking mechanism travel. The 1250 A rating drives busbar sizing and cable lug selection — expect M12 or larger studs for the line and load connections. Verify the short-circuit withstand rating of the downstream bus to coordinate with the N breaking capacity.