ABB S283-Z63A Molded Case Circuit Breaker is a 3-pole protective device rated for 63 A at 240 V AC, belonging to ABB’s S283 MCCB family. Designed for low-voltage distribution, it protects branch circuits in commercial and light-industrial panels by interrupting fault currents and overloads within its molded enclosure. The S283-Z63A model specifies a 63 A, three‑pole configuration within the S283 line, suitable for integration into compatible ABB systems and standard panelboard installations.
