sinkje
Arlington, Tn.
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My camper is equiped with a 50 amper plug. When I come home to plug it in I have a 30 amper adapter pig tail that I plug into my house which is a 20 amper curcuit. My question is I have a 50 amper 220 plug that I use for my welder which is a three wire could I make up a pig tail to plug into that 220 recepticial to run my camper off of. The plug on my camper says it is a 125/250v grounding 4 wire. With the 20 amper plug I have kicked my circuit a few times when I turn my air conditioner on.
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rv2go
Somewhere between Knoxville, TN and the coast.
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The 240 v welder recpt is 240 volts phase to phase with a ground.
A RV 50 recpt is two (2) 120 volt circuits (120 volts to neutral) plus a ground. The two will not interchange.
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sinkje
Arlington, Tn.
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Thanks for the answer rv2go.
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Bumpyroad
Virginia
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you certainly could wire up an adapter so that you could plug your RV into any 220 outlet as long as the 220 had 110 provision. but you better do it right or you will fry everything.
bumpy
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MI Director
Michigan
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The welder is two 120 volt hots (L1 &L2) to a white neural (N) which is 220/240 volt. It lacks the ground required in present code wiring. You would have to add a ground to the adapter in order for it to work. Depending on the electric code in your area you may be able to come off the house ground but you have to have your red and black hots (L1 & L2), white neural(N) and green (G) to a earth ground in order to not damage your RV.
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donawilcox
Taylor TX
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If you are lucky they wire that was put in has a ground. if not would not be hard to run a ground especially if it is in your garage. I would change the plug to fit 50 amp RVv plug. Then on your welder buy a new male plug that is the same as your RV. That way you have no adapters to deal with. The thing is if you have an older home the white wire and the ground both go back to the same place in the electrical box. In recent years they want them on sep bars.
Don Wilcox
Taylor TX
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wittmeba
Roanoke, Va
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You can make your own if you know what you are doing.
Read this if you want to know what can happen if you make a mistake.
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Roadpilot
Lakes Region of New Hampshire
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I did a search for welder plugs:
Master electrician Bob on welders
He discusses two welding plugs. One is the classis 4 wire 110/220 scenario. The other is a 3 wire welder, which he says contains 2 hots and a ground. The is no neutral.
This would be the case if the welder only requires 220 and not 110. I suspect many welders are like this. You can't get 110 from this type of 3 wire but you could get a lot of dead equipment.
If in doubt ask a qualified electrician to look at you situation.
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Bumpyroad
Virginia
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Roadpilot wrote:I did a search for welder plugs:
Master electrician Bob on welders
He discusses two welding plugs. One is the classis 4 wire 110/220 scenario. The other is a 3 wire welder, which he says contains 2 hots and a ground. The is no neutral.
This would be the case if the welder only requires 220 and not 110. I suspect many welders are like this. You can't get 110 from this type of 3 wire but you could get a lot of dead equipment.
If in doubt ask a qualified electrician to look at you situation.
OK, ignoring codes, with the old style wiring where white and green go to the same buss bar, why couldn't you wire this up as two 110 circuits?
bumpy
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