5SU1656-7KK40 SIEMENS

The 5SU1656-7KK40 is a Residual Current Circuit Breaker with Overcurrent protection (RCBO) from Siemens, designed to provide comprehensive protection against both overload/short circuits and residual currents. This RCBO has a breaking capacity of 6 kA, making it suitable for standard residential and commercial applications. It features a 1P+N configuration, meaning it protects one phase and the neutral conductor. The device is a type A RCBO, which is sensitive to both AC and pulsating DC residual currents, ensuring reliable protection against a wider range of fault currents. With a residual current tripping sensitivity of 300 mA, it provides a moderate level of protection against earth leakage faults, suitable for applications where a higher fault current is tolerable. The C-characteristic tripping curve indicates that it is designed for circuits with moderate inrush currents, such as lighting and general-purpose circuits. It has a rated current (In) of 40 A and a rated voltage (Un) of 230 V AC. This RCBO combines the functions of a circuit breaker and a residual current device in a single unit, saving space in the distribution board and simplifying installation. It is suitable for use in a variety of applications, including residential, commercial, and industrial settings, where protection against both overcurrents and residual currents is required. The 5SU1656-7KK40 RCBO helps to ensure the safety of people and equipment by quickly disconnecting the circuit in the event of a fault.