1SYS273022R0501

The ABB SB203M I-D50 is a three-pole, 50 A miniature circuit breaker designed to provide overload and short-circuit protection in industrial and commercial electrical distribution systems. It features a D-type tripping characteristic, suitable for appropriately designed circuits with high inrush currents, such as certain motor and transformer applications. This device belongs to ABB's SB200M Industrial series and is intended for installation in electrical distribution panels. Proper selection requires consideration of system voltage, cable current capacity, prospective short-circuit current, and coordination with other protective devices.