The key to living on 30 amps is to not exceed the amperage of an individual circuit, and to not exceed a total of 30 amps at any given time. With a better understanding of your RVs electrical system and some simple electrical formulas you can live comfortably on 30 amps with little to no problems.

What is a double 30 amp breaker used for?

Double-pole breaker Uses the entire 240 volts available to the panel. The 15-amp and 20-amp breakers often handle baseboard heaters, 30-amp serve water heaters and electric dryers, 40- and 50-amp are for electric ranges, and the 70-amp could serve a large air conditioner or a subpanel.