Personal protection plug BDI-S 30 *GB*

A residual current circuit breaker (RCD) is an electrical protective device used primarily to protect against electric shocks. The RCD detects the difference between the incoming and outgoing current in a circuit. If a fault current occurs, for example due to an insulation fault or a current flow via an unwanted discharge such as a person, the RCD switches off the circuit. This significantly reduces the risk of electric shock or fire caused by a fault current. When used as personal protection, a residual current device must trip and interrupt the circuit at a residual current of 30mA at the latest.