The Siemens 5SU9106-1DV25 is a combined RCBO in a single 1+N-pole module. It pairs a 25 A C-curve MCB with a 10 mA Type AC RCD, rated for 6 kA breaking capacity.
The 10 mA RCD threshold means this device will trip on leakage currents as low as 5 mA (half the rated IΔn), which is below the let-go threshold for adults; it is not intended for general socket circuits where 30 mA is standard, but for dedicated high-sensitivity protection.
