1SYS273022R0201

The ABB SB203M I-D20 is a three-pole industrial miniature circuit breaker designed to provide overcurrent and short-circuit protection in electrical distribution systems. It has a rated current of 20 A and a D-type tripping characteristic, making it suitable for applications where equipment can produce high inrush currents during startup. It is used to protect electrical circuits and connected equipment against excessive current and short circuits. Verify the rated voltage, breaking capacity, and installation requirements against the manufacturer's datasheet before selection.