ABB SU204M-C63 Soft Starter For Three-Phase Motors

ABB SU204M-C63 is a four-pole miniature circuit breaker in ABB’s System pro M compact family, designed to deliver reliable branch-circuit protection for three‑phase power distribution. With a 63 A rated current and a Type C tripping characteristic, it provides deterministic overload and short‑circuit protection in industrial control panels and motor feeders. The device is UL 489‑compliant and configured for mounting on standard DIN‑rail in ABB's System pro M compact range, enabling straightforward integration into existing ABB installations. It covers protection on AC systems up to 480Y/277 VAC and can handle DC applications up to 96 V, making it suitable for mixed‑voltage control circuits that require consistent overcurrent protection. The SU204M-C63 is cataloged under order 2CDS274337R0634, with the alternate designation SU204M-C63, and is part of ABB’s modular protection lineup that extends the established S200/M family for compact panel builds. Typical installations include feeders to machines, distribution panels, and three‑phase motor circuits where reliable, plug‑and‑play protection is required without the need for external fusing. As a mature component of ABB’s System pro M compact ecosystem, it pairs with other MCBs and accessories in the same series to maintain uniform protection coordination and simplify maintenance in industrial environments.