ABB SU203M-C8 is a 3-pole miniature circuit breaker (MCB) in ABB's SU200M family, delivering C-curve overcurrent protection for three‑phase loads. It is rated at 8 A nominal current with a 10 kA short-circuit breaking capacity and UL489 listing. The device supports AC circuits up to 480Y/277 VAC and DC up to 96 V, in line with UL 489 requirements for branch-circuit protection in commercial and industrial panels. The SU203M-C8 is a compact protection device used to safeguard wiring and equipment from overloads and short circuits in 3‑phase distribution systems.
