S202-D63 MCB 2P D 63A 277V AC, 6 kA Interrupt

The ABB S202-D63 is a 2-pole miniature circuit breaker rated for 63 A continuous current, with a D-curve trip characteristic that handles high inrush loads like motor starters and transformer primaries without nuisance tripping. Rated 277 V AC phase-to-neutral (480Y/277 V wye systems), it breaks fault currents up to 6 kA — enough for most downstream distribution panels, though verify against your available fault current at the panelboard. Snaps onto standard DIN rail; the 2-pole form factor occupies two module widths in the enclosure, leaving room for adjacent breakers or auxiliaries.