The ABB XT4NU3200AFF000XXX is a 3-pole molded case circuit breaker from the XT4N series, rated 200 A continuous at 600 VAC.
Panel mounting and enclosure fit
Panel-mount form factor means this breaker bolts directly to a backplate or enclosure subpanel — no DIN-rail adapter. That's typical for the 200 A frame size where the conductor lugs and bus bar connections need a fixed base. Verify the mounting hole pattern matches your existing cutout before committing the BOM line.
