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Old 09-28-2014, 07:56 AM   #1
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Is there a required color sequence for a 50 amp RV plug?

I know that red and black represent L1 and L2, but does it matter which goes to L1 or L2. In other words, is there a standard, like the 7 pin plug on a trailer?

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Old 09-28-2014, 08:22 AM   #2
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Black is L1 and red is L2. That being said you could cross those two wires and it would not make any difference.

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Old 09-28-2014, 08:23 AM   #3
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Standard NEMA 14-50 wiring designates Ground as G, Neutral as W and the Hots as X and Y. X and Y are entirely interchangeable.
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Old 09-28-2014, 08:38 AM   #4
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Originally Posted by BPoland View Post
I know that red and black represent L1 and L2, but does it matter which goes to L1 or L2. In other words, is there a standard, like the 7 pin plug on a trailer?
Make sure that you get the green wire to ground the white wire to neutral and then as other posters have said it does not matter which one goes to L1 and L2. I would also turn off the main ckt breaker in the MH when you hook up to the pedestal the first time. Take a voltage meter and check between one leg of the ckt breaker to neutral and make sure it read 120 volts. + - 10, Then check the other leg of the ckt breaker to neutral and check the same thing. Then check ground to neutral and make sure it reads 0 volts if those all check out then you can turn the breakers on and be fine.
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Old 09-28-2014, 04:47 PM   #5
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Red and black are interchangeable, you can put either one on the right side, just be sure to put the other on the left.

Green and White must be attached to the proper screws.
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