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Old 07-08-2015, 08:01 PM   #1
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How to convert 50A receptacle to 30A

I bought a house with a 50A 240 receptacle on the wall in the garage. I want to convert it for use with my motorhome which is 30 amp. Is there a converter cord or do I need to change out the wall plug to 30A? And then there is the breaker in the panel which is a problem. Its a two pole 40A each, 240Volt.
Got ideas.
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Old 07-08-2015, 08:46 PM   #2
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There are ready-made adaptors......you should be able to find there in Bend. Also, the plug (50 amp) 240 volt can be re-wired to 120 volt. Is that breaker you've got a side by breaker...if so, get a 30 amp side by side
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Old 07-08-2015, 09:18 PM   #3
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When done you should have one hot one ground and one neutral.

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Old 07-08-2015, 09:26 PM   #4
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There are ready-made adaptors......you should be able to find there in Bend. Also, the plug (50 amp) 240 volt can be re-wired to 120 volt. Is that breaker you've got a side by breaker...if so, get a 30 amp side by side
Why would you need a 30 amp side-by-side? I think you need a single pole 30 amp for the single hot. All the 30 amp RV plugs I've ever seen are single pole.
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Old 07-08-2015, 09:30 PM   #5
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Just so there wouldn't be an empty hole in panel......and you couldn't test for power the redneck way!
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Old 07-08-2015, 10:23 PM   #6
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Just so there wouldn't be an empty hole in panel......and you couldn't test for power the redneck way!
OK, but here's hoping the OP doesn't insert a ground or neutral/common wire in that second slot!
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Old 07-08-2015, 10:40 PM   #7
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All you need to do is plug in a 50 to 30amp dogbone. End of story.....
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Old 07-08-2015, 10:41 PM   #8
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Just get a 50 to 30 amp RV adaptor. The motorhome will have a 30 amp main breaker to protect the interior wiring.
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Old 07-08-2015, 10:48 PM   #9
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All you need to do is plug in a 50 to 30amp dogbone. End of story.....


NO..NO..NO His outlet is wired 240V. The breaker needs to be changed to 120V......and the outlet rewired. You cant plug an RV into a 240V outlet!!!!

Well I guess you can...but only ONCE.
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Old 07-08-2015, 10:56 PM   #10
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Every 50 amp receptacle intended for an RV is wired for 240 volts. It will be a 4 wire receptacle with two phase conductors a neutral and a ground. 120 volts from each phase to neutral and ground and 240 volts phase to phase. The dog bone adapter from 50 amp to 30 amp will only connect to one phase, the neutral and the ground. If the 50 amp is not a 4 wire receptacle then most likely it is two phases and ground without a neutral. The dog bone will not be the right configuration to plug into it.
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