ABB SU203M-C16 Three-Phase Molded Case Circuit Breaker

ABB SU203M-C16 is a three‑pole molded‑case circuit breaker (C‑curve) with a 16 A nominal rating, designed for reliable branch‑circuit protection in low‑voltage installations. It supports 277/480Y VAC three‑phase power and can handle DC control circuits in the 48–96 VDC range, with UL489 certification and a 10 kA interrupting capacity for robust short‑circuit protection. The compact housing measures about 52.5 mm in width and 69 mm in depth, making it suitable for standard panels and compact distribution enclosures. Typical applications include protecting branch circuits in commercial or light‑industrial panels and motor/control circuits that require a 3P, 16 A breaker with a C‑characteristic curve.