The ABB XT1NU3045AFF000XXX is a 3-pole molded-case circuit breaker from the XT1N frame, rated 45 A continuous at 480 V AC.
Panel-mount format; installs through a cutout in the enclosure gland plate or backplane. No DIN-rail adapter — plan for direct screw-down onto the mounting surface with bus-bar or cable connections on the line and load lugs.
