The Siemens 5SU1356-0DV06 is a combined residual current device and miniature circuit breaker — an RCBO, or FI/LS-protector in Siemens terminology. It covers both overcurrent and earth-fault protection in a single 1+N-pole unit, rated 6A B-curve with 30mA trip sensitivity and 6kA breaking capacity. The Type AC designation means it detects sinusoidal AC residual currents only — the most common class for general socket-outlet and lighting circuits where no pulsating DC or smooth DC fault currents are expected.
Deployment context
The 70mm depth (D=70mm) and pig-tail connection make this unit a direct swap for Siemens 5SU1-series RCBOs in standard distribution boards. Mounts on DIN rail in consumer units or sub-distribution panels.