Before using 230 V devices on board (e.g. chargers, drill, vacuum cleaner, etc.), it is necessary to install an AC system with a two-pole RCD 3 A and a circuit breaker. For personal protection, the on-board power supply is disconnected from the shore power supply within seconds in the event of a fault. Shore power connectors (IP56 is best) are 3-pole according to the CEE standard and should be installed in a water-protected location. Very space-saving are the waterproof BINDER circular connectors RS 692 for AC 230 V / 50 Hz / 15 A - protection class IP 6These are approved by Germanischer Lloyd as a safe plug connection for shore power takeover.