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I’m installing power to my horse trailer for camping. I bought a 30 amp breaker box and plan to run a cord to the outside of the trailer to plug a 30 amp cord into that and then into the 30 amp service from the campsite.
How do I do this and can I use a internal double pole breaker? I’d like to run outlets on one side and lights on other side of breaker.
Where you plug in on the campsite will already have a 30A fuse or breaker. Your breakers inside your panel need to be correct for the wiring and loads you are using. To use normal receptacles and lights, you must use 15A or 20A breakers.
They do not need to be a 2-pole breaker, that nano-panel there will take two independent breakers.
Note that 30A 3-prong campsite power is 120V, so you will need to rewire this panel to be 120V not 240V. If you were thinking you will get 2 legs of 30A each, that's not how RV power works. If you want two legs, you have to bump up to 50A RV service.
There is nothing wrong with putting lights and receptacles on the same circuit. The largest plug-in loads are generally 1500 watts. Two won't fit on a 20A circuit (2400W). So you can only have one per 15A or 20A circuit. If you put all your receptacles on one 20A circuit, you cannot run two such loads -- even though your supply power (30A/3600W) is capable of it. So put some receptacles on each of the two circuits.
Feel free to put the lights in one area on a different circuit than the receptacles for that same area... that way, when you have a problem you can still see. (the other area can't, but they are probably not inches away from a hot griddle or spinning saw blade).
