ABB SU203M-C32 3 Phase Molded Case Circuit Breaker

ABB SU203M-C32 is a 3‑pole molded‑case circuit breaker from ABB’s System pro M compact SU200M family, designed for branch‑circuit protection in commercial and industrial panels. It delivers a 32 A rated current with a C‑curve thermal‑magnetic trip, UL489 listed, and an interrupting rating of 10 kA to clear faults on typical 277/480Y VAC systems as well as 48–96 VDC control circuits. The unit is DIN‑rail mountable and uses screw terminals compatible with 18–4 AWG conductors, ensuring secure, easy installation. Its compact footprint measures 69 mm in length, 52.5 mm in width, and 111 mm in height, and it weighs about 0.375 kg. The enclosure is rated IP20/IP40 depending on mounting and wiring, and the operating temperature range spans from −25 °C to 55 °C, making it suitable for standard industrial environments.