ABB ST202M-K20 is a two-pole miniature circuit breaker in ABB’s System pro M Compact ST200M family, designed to protect low-voltage circuits in industrial control panels. The K20 designation indicates a 20 A rating, and the device is UL 1077 listed, reflecting its suitability for use in compliant circuits. As part of the ST200M line, it provides thermal-magnetic overload and short-circuit protection for 2-pole circuits in industrial environments.
