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Hi, I have a cruising boat that I am installing a new LifePO4 house bank on. I have 4/0 cables leaving the battery and going (through fuse/shutoff for POS, through shunt for NEG) to 600a busbars. All good thus far. My question is what happens from the NEG busbar to connect to boat common ground...

My boat has a 50a/240v service with both shore power and 9kw generator. As you can see in the diagram, there is a manual selector that prevents us from energizing the shore power and generator at the same time. The panel is split into two halves, with one leg per half. I assume (and please...