Hi Larry,

I need some advice on 12 volt circuit breakers.

I am redesigning my switchboard as the one I had made when I launched
Herodotus 15 years ago is getting too small to add the extra switches
and fuses I want. There is nothing worse than having to replace a fuse
and not knowing where, even though you wired it yourself.

Question: I am of the understanding that one should have a breaker
that is at least double the proposed load in the combined circuits
that it protects. E.g port cabin lights.

Is this correct or is there a rule of thumb that applies?

regards
Peter