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Old 11-03-2014, 06:52 PM   #11
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Join Date: Jan 2013
Location: Berryville, Arkansas
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Originally Posted by proggod View Post
Technically it should be wired that way. It should be 4 wires in total, 2 hot, 1 neutral and 1 ground. Your rv plug should not pull the each leg separate for 2 110v legs with the neutral. However if something wanted to pull 220v they would just use the two hots together. Thats why the 50a plugs have 4 wires. I wired my outlets w/ only 3 wires and are now regretting it. Since i can't use the welder and the rv in the same outlet. When I get some time, i'll move them to 4 wire plugs..
Huh? A 30 amp RV receptacle should be 3 wires, not 4. There should be one ground, one neutral and one hot (120 VAC) wire. In fact, there are only 3 connections to be made to a 30 amp RV receptacle. Now, if there are 4 wires in your installation, you could change the 30 amp receptacle to a 50 amp receptacle and use a 50 to 30 amp adapter. That way, when you trade your 30 amp RV in for a larger RV with 50 amp service, you'll be ready. I say this because I originally wired my RV shelter for 30 amps and had to later add a 50 amp circuit when I got my current RV. Plan big!


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Old 11-03-2014, 06:52 PM   #12
Join Date: Sep 2014
Posts: 53
If it was me I'd just use a 4 wire plug with 3 wire adapter. Then the outlet has multiple uses

Even thought they call them 30amp or 50amp that's not the type of plug. So that's why the confusion from electrician. Most people if you ask for 30amp expect 220v. These rvs are just weird

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