ABB ST202M-C3 is a two-pole miniature circuit breaker from ABB's System Pro M Compact family, designed for DIN-rail mounting in electrical distribution panels to protect circuits from overload and short circuits. This model is rated at 3 A with a 10 kA interrupting capacity and a C-type trip curve, suitable for 480Y/277 V AC systems, and UL 1077-listed as a supplemental protective device. It is a compact 2P device used in panel boards to safeguard both conductors in a single circuit and is commonly deployed for control circuits and feeder protection in industrial automation applications.
