1SYS274022R0401

The ABB SB204M I-D40 is a four-pole miniature circuit breaker designed to protect low-voltage electrical circuits against overloads and short circuits. It has a rated current of 40 A and a D-type tripping characteristic, suitable for compatible applications involving high starting or inrush currents. Its thermal tripping mechanism provides overload protection, while its electromagnetic mechanism responds to short-circuit faults. The device belongs to ABB's System pro M compact SB200-I industrial range and is intended for installation in compatible electrical distribution assemblies. Selection should account for system voltage, prospective short-circuit current, conductor capacity and coordination with other protective devices.