Robbie G

Not sure probably my brother as it’s his boat, Unfortunately he his overseas and it’s not that easy to get hold of him, will probably have to get someone out to it

Yes it seems to be fine when unplugged, Just when plugged in even with the socket switch off ,

Sorry not on the boat, Will try and locate a name and model number, Just a orange box to me , Thanks for all your kind replies, Looks like it’s more complicated than I first thought. Oh well onwards and upwards

Not sure I’m explaining this very well , yes the battery charger side of the inverter is a 240 volt supply from the sockets on the boat fed from the shore line , The output from the inverter goes through the selector switch to the consumer panel as any other combi , And no of coarse it doesn’t put 240 volt onto a 13 amp plug ; As this in the input not the output ,

The inverter has a 240 volt input for when it’s in charging mode which I plug into the 240 ring main on the boat works perfectly on the ring main when shore power is selected , As a charger If I then select inverter power on the selector switch , I switch the input to the inverter off which is also fine , However and this is the baffling thing, If the inverter is plugged into the one socket which is not on the ring main , but a spare from a socket on the ring main , it trips the RCD , Doesn’t trip on the ring main sockets at all , the cable is only a couple of feet and in good condition ,

Hi I have a new inverter which is not playing , When the boats on mains power the inverter is plugged into one of the sockets and it charges the batteries all fine and well , When I switch the inverter off on the socket , And turn the selector switch to inverter power it trips the breaker even though it’s only plugged in and not switched on , if I physically unplug the inverter input it’s fine , as soon as plug it back in even with the socket switched off it blows the red breaker anybody help with this. Robbie Sorry meant to say RCD breaker not red breaker.