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Can a 240v 50amp 3 prong socket be used for 110v 30amp RV plug?

Can a 240v 50amp 3 prong socket be used for 110v 30amp RV plug?

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Old 01-12-18, 11:24 AM
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Can a 240v 50amp 3 prong socket be used for 110v 30amp RV plug?

Could an adapter plug be wired up to only use one leg of the 240v outlet to supply to a special 120v 30 amp plug? Just wondering but then it wouldn't have a ground plug. So that wouldn't be a good idea correct? I never use the 240v plug that the previous owner had for welding. I would like to keep the plug just in case but also use it to plug my RV in.

skeeter
 
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Old 01-12-18, 11:41 AM
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Dag-nam-it, Did it again. Can a moderator move this to Electric AC-DC forum?

skeeter
 
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Old 01-12-18, 11:59 AM
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Thread moved.

In order to even consider using the 240v circuit for the motor home it would need to be four wires. A dedicated ground and neutral is needed. Then a 30A breaker would be required. You could check and see what's there for wiring.
 
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Old 01-13-18, 06:16 AM
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A 3 prong 50 amp receptacle is straight 240 volts. Your RV use a 30 amp 120 volt circuit.

Depending on how the 50 amp circuit is wired, and if you use it now for something, you may be able to convert it to what you need.
 
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Old 01-13-18, 10:59 AM
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You would be better off stringing a new 30 amp circuit for your RV.

If the wiring for the welder circuit has black, white, and bare/green conductors you could repurpose it for the 30 amp 120 volt RV. But you would not be allowed to put the 50 amp welder receptacle back on that circuit.
 
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Old 01-13-18, 11:59 AM
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Yeh, that's what I thought. I'm redoing my electrical panel anyway so i'll just wire in a new RV plug at the same time.
 
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