The ABB XT1NU3060AAA000XXX is a 60 A, 3-pole molded case circuit breaker rated for 480 V AC with an interrupting capacity of 18 kA. Panel-mount construction fits standard distribution panel cutouts — no DIN-rail adapter needed.
The closest peer in the same XT1 family is the XT1NU3090AFF000XXX, which shares the 3-pole, panel-mount footprint but steps up to 90 A. The 60 A unit here is the right pick for a 60 A feeder or branch circuit; the 90 A variant serves a heavier load. Both use the same frame size, so the physical drop-in is identical — no bus-bar rework needed if you swap between them at the same ampacity.
