Industrial S202-K1 Circuit Breaker

ABB S202-K1 is a two-pole miniature circuit breaker (S200-series) designed for DIN-rail mounting in low-voltage distribution panels. It is rated for 1 A and 480Y/277 VAC operation, offering up to 6 kA short-circuit interruption with a K-type thermal-magnetic trip curve that responds to overloads and faults in two separate circuits. The device is intended as a supplementary protector and is UL 1077 and CSA-certified, featuring finger-safe terminals and a 35 mm DIN-rail mounting footprint for straightforward integration into standard enclosures. The S202-K1 designation indicates two poles and a 1-amp rating, aligning with ABB's legacy portfolio (ASEA BROWN BOVERI) and a family of similarly coded S200-series breakers. This combination of compact form, explicit voltage and current ratings, and recognized safety certifications makes the S202-K1 a practical choice for protecting small-diameter branch circuits or control circuits within commercial and industrial electrical installations.