1SYF272027R1634

The ABB DSB202M AC-C63/0.03 is a two-pole residual current circuit breaker with overcurrent protection (RCBO), designed to protect compatible low-voltage electrical circuits against overloads, short circuits and earth-leakage faults.

The matching catalogue entry specifies a rated current of 63 A, a C-type tripping characteristic and a rated residual operating current of 30 mA (0.03 A). It combines overcurrent protection with residual-current detection in one compact device and is designed for DIN-rail installation in compatible electrical distribution boards.

The 30 mA sensitivity provides additional protection against electric shock when correctly selected and installed. The device's rated current, cable capacity and breaking capacity must be checked against the electrical installation requirements. Installation should be carried out by a qualified electrician in accordance with ABB's technical documentation and applicable standards.