5SU1656-0KK20 SIEMENS

The 5SU1656-0KK20 from Siemens is a Residual Current Circuit Breaker with Overcurrent protection (RCBO), designed to provide comprehensive protection against both short circuits and earth leakage faults. This device has a breaking capacity of 6 kA, ensuring it can safely interrupt high fault currents. It features a 1P+N configuration, meaning it protects one phase and the neutral conductor. The RCBO is Type AC, making it suitable for detecting AC residual currents. With a sensitivity of 300 mA, it trips quickly in the event of an earth leakage, minimizing the risk of electric shock. It has a B characteristic, indicating its tripping behavior for overload protection, suitable for resistive and inductive loads with low inrush currents. The rated current (In) is 20 A, designed for circuits with a maximum current of 20 Amperes. The rated voltage (Un) is 230 V AC, compatible with standard residential and commercial power systems. This RCBO combines the functions of a circuit breaker and a residual current device in a single compact unit, saving space in the distribution board and simplifying installation.