I’m going for a super simple 12v system for my build, and I have a few questions:
1. Is 12 ga adequate from the battery to the box?
2. Is a 30 amp breaker too large?
3. Will 16 ga work for all the appliances, including the vent fan?
4. What size fuse for the LED lights?
5. What size fuse for the vent fan?
6. What size fuse for the ports?
7. Do I need to ground the (-) to the trailer frame? If so, what size wire?
The battery and charger will be housed in a vintage cooler mounted to the tongue.
The longest wire run will be out to the galley.
Thanks for your input.