1SYF274027R1404

ABB DSB204M AC-C40/0.03 is a four-pole residual current circuit breaker with integral overcurrent protection (RCBO), designed to protect electrical circuits against earth-leakage currents, overloads and short circuits. It features a rated current of 40 A, a residual-current sensitivity of 30 mA, Type AC residual-current detection and a C-curve tripping characteristic. The device has a rated short-circuit breaking capacity of 10 kA and is designed for DIN-rail mounting in electrical distribution boards. It is suitable for residential, commercial and industrial electrical installations where these protection specifications meet the requirements.