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Old 02-21-2018, 09:43 PM   #1
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AC Power-How many circuits?

We are in the planning phases of our build and our main question I am stuck on is AC electrical. How many circuits are typical? We are currently looking at running an apartment size fridge, microwave, one possibly two window air conditioning units, 10 outlets throughout the bus, and 4 AC Wall lights. Any help would be appreciated.
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Old 02-21-2018, 09:54 PM   #2
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Originally Posted by Harriman View Post
We are in the planning phases of our build and our main question I am stuck on is AC electrical. How many circuits are typical? We are currently looking at running an apartment size fridge, microwave, one possibly two window air conditioning units, 10 outlets throughout the bus, and 4 AC Wall lights. Any help would be appreciated.
So you want to fuse the circuits at 20 Amps, then try to keep the load on each circuit under about 15 Amps, Get smaller breakers if you can, and don't forget a GFCI protecting the whole installation.

I'd have the following:

1. Microwave
2. AC 1
3. AC 2
4. Fridge and Lights
5. Outlets

If I had six circuits available I'd either split the outlets or add external outlets which are amazingly useful on an RV.

Remember you will be limited in the power you can draw even with shore-power. The most you can use is 50 amps, and often it will be 30 Amps.
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Old 02-21-2018, 11:20 PM   #3
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Fridge should have it's own circuit, no GFCI on it, they like to trip them for some reason, also current electrical code. If you plan on ever using an electric space heater, seperate plug and circuit for that. Use 12 guage wire for circuits, 6 guage for main feed to cover 50 amp input
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Old 02-22-2018, 12:01 AM   #4
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Quote:
Originally Posted by Harriman View Post
We are in the planning phases of our build and our main question I am stuck on is AC electrical. How many circuits are typical? We are currently looking at running an apartment size fridge, microwave, one possibly two window air conditioning units, 10 outlets throughout the bus, and 4 AC Wall lights. Any help would be appreciated.
Me, personally, would go with a RV load center...and all my lights would be DCV...and my entertainment equipment would be DCV as well...then I'd have a circuit for the microwave...anyway the RV comes with a integrated charger and a "AC" section and a"DC" section...you decide rather 30amp or 50amp shore power...with more experience you could install both...

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