1SYS273022R0031

The ABB SB203M I-D3 is a three-pole, 3 A miniature circuit breaker (MCB) designed to protect compatible low-voltage electrical circuits against overloads and short circuits. It features a D-type tripping characteristic, suitable for applications where electrical equipment may draw high inrush currents during startup. Its compact modular construction supports DIN-rail mounting in compatible distribution boards, switchboards and industrial control panels.