![]() ![]() When the 120-volt AC power comes in from the power pedestal, it hits a transfer switch, and from here some of that power just flows right on through the circuit breaker and to the components in the RV that require 120 volts of AC power. Let’s look a little closer at how all of this comes together. If your RV is plugged into a power pedestal (AC power) then it makes sense how your AC dependent components are getting power, but how are the DC components getting power? Well, you are going to need to convert that 120 volts of AC power to 12 volts of DC in order for those DC components to work. Here is a good starting point to help you understand RV electricity: different components in an RV are designed to run on different types of power, either 120-volt AC or 12-volt DC. Oh, and don’t forget the generator! Different Types of RV Power Then I see all of these funny little convertor and inverter boxes. Kidding of course, but what in the world is going on in this diagram? I see power coming in, and then I see batteries providing power. So just look over this diagram and it will all come clear: AC comes from the power lines and DC comes from batteries. Just to confirm the terms here, AC means alternating current (2 way current) and DC means direct current (one way current). The main reason it can be a bit difficult to follow is because unlike a regular house that only has AC power, the RV runs AC and DC components. Electricity and RVs are a bit complicated. I get asked a lot of questions about electricity in RVs, and while my background is not as an electrician, I have gained knowledge of the RV systems through trial and error (luckily not too much error). Water Filtration Systems Expand submenu. ![]()
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