5SU1654-1KK40 SIEMENS

The 5SU1654-1KK40 is a Residual Current Circuit Breaker with Overcurrent protection (RCBO) from Siemens, designed to provide comprehensive protection against electrical faults. This RCBO offers a breaking capacity of 10 kA, ensuring reliable interruption of high fault currents to prevent damage to equipment and wiring. It features a 1P+N configuration, meaning it protects one phase and the neutral conductor, making it suitable for single-phase electrical systems. The device is a Type AC RCBO, which detects sinusoidal alternating residual currents. With a sensitivity of 300 mA, it trips when leakage current exceeds this threshold, minimizing the risk of electrical shock. It has a C-Characteristic tripping curve, providing a balance between sensitivity and immunity to nuisance tripping caused by transient overcurrents. The RCBO is rated for a nominal current (In) of 40 A and an AC voltage (Un AC) of 230 V, making it suitable for a wide range of residential and commercial applications. This RCBO combines the functions of a residual current device (RCD) and a miniature circuit breaker (MCB), offering both overload and short-circuit protection along with earth leakage protection. This combination saves space in the distribution board and simplifies installation.