To start with a 30 Amp system is the most common on RVs. The plug on your RV is a large three-prong, heavy duty 30 Amp, 120-volt plug. Most campgrounds you go to will provide you with a 30 Amp outlet that your RV power cord will plug directly into.

What size wire is needed for a 30 amp RV plug?

10-gauge wire is usually used for short 30 amp runs. If you plan on going over 150 feet, 8-gauge wire or thicker will be needed.

What type of wire is used in RVs?

12-volt wiring is usually fairly small gauge, mostly #12 or smaller. The red wire is usually the hot wire and the black wire is the ground. Larger #10 wire may be used for special, high-amperage appliances, charging circuits, and main lines.

What size wire do I need for 60 amp service?

While its common to use a 6-gauge wire for 60-amp breakers in practice, its best to use a 4-gauge wire if youre installing a 60-amp subpanel. 60-amp breaker panels controlling several circuits can draw a max of 60 amps before the subpanel breaker trips.