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Old 10-16-2019, 07:56 AM   #1
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110 or 220 volts

having a receptacle put in for camper at semipermant location. My male plug is 4 lugs. one is round the other three are flat and arranged forming a circle , and slanted. (50 amp) Those familiar will know the one I'm describing (trying). My electrician is saying this is a 220 volt plug. I though its 110. What do you guys say. Have run it at campgrounds>
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Old 10-16-2019, 08:00 AM   #2
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It is a standard 120/240V outlet. 4-wire service provides both.
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Old 10-16-2019, 08:01 AM   #3
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I just installed several of these in the new house I built. The round 4 prong plug is wired for a 240 volt circuit (if done correctly).

Only a handful of larger coaches actually utilize the 240 volts, in most cases it is split into two 120 volt circuits.
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Old 10-16-2019, 08:15 AM   #4
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Standard 120/240 volt service like your electric range.

http://www.myrv.us/electric/Pg/50amp_Service.htm

Its full 240 volts right up to the double breaker in your main panel. Then its split out to 2, 120 volt branch circuits.
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Old 10-16-2019, 08:30 AM   #5
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50 amp is 240 volts 4 wire #6 ga. wire. 30 amps is 120 volts 3 wire #10 ga. wire.
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Old 10-16-2019, 01:50 PM   #6
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Tell your electrician you need a NEMA # 14-50R he'll know what you need.

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Old 10-16-2019, 02:26 PM   #7
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If you look at your plug, and outlet, you may see that its even marked 50 amps, 125/250 volts. Standard stuff.
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Old 10-16-2019, 02:37 PM   #8
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Before plugging your RV into the new outlet have your electrician show you the voltages with his volt meter, voltage between the lugs at three and nine o-clock should be 240,,, voltage between lugs at three and twelve o-clock should be 120,,,as well as three and six o-clock is 120,,, nine and twelve o-clock should be 120 as well as nine and six o-clock is 120. the voltage between six and nine o-clock will show zero.
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Old 10-16-2019, 02:41 PM   #9
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Don't think those are supposed to be slanted,
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Old 10-16-2019, 03:36 PM   #10
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I agree, the OP mentioned "slanted".
His electrician should only have to look at what is on the 'camper' to discern what is needed.

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Old 10-16-2019, 05:17 PM   #11
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Treeplanter the OP said 4 lugs,,,,, one is round ,,50 amp lets not add confusion, that's a 120/240 volt ,50 amp NEMA configuration . the OP mentioned "slanted" he's referring to the 'neutral' conductor blade. . JK Wilson post is spot on, NEMA 14-50R/P .

Issue question solved !!

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Old 10-16-2019, 08:17 PM   #12
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Quote:
Originally Posted by jacwjames View Post
I just installed several of these in the new house I built. The round 4 prong plug is wired for a 240 volt circuit (if done correctly).

Only a handful of larger coaches actually utilize the 240 volts, in most cases it is split into two 120 volt circuits.
Quote:
Originally Posted by twinboat View Post
Standard 120/240 volt service like your electric range.

The 50-amp 120/240-volt 3 pole 4

Its full 240 volts right up to the double breaker in your main panel. Then its split out to 2, 120 volt branch circuits.
These two pretty much cover it, I think your electrician knows what he is talking about. You can grab 240 for the RV with a doubly half space 50 amp and XX amp breaker. The xx can be any amperage up to 50 although that would not be practical, most likely 30 amp would be normal.
I run my Cheap Heat system on 240v 30 amps.
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Old 10-17-2019, 06:47 AM   #13
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You guys nailed it. Everything is up and running and most importantly "didn't let the smoke out of anything" My electrician was right. He explained / showed me how it broke down inside. That's why I hired him, LOL. Thanks for all the responses.
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Old 10-17-2019, 06:48 AM   #14
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Quote:
Originally Posted by nutcker View Post
Before plugging your RV into the new outlet have your electrician show you the voltages with his volt meter, voltage between the lugs at three and nine o-clock should be 240,,, voltage between lugs at three and twelve o-clock should be 120,,,as well as three and six o-clock is 120,,, nine and twelve o-clock should be 120 as well as nine and six o-clock is 120. the voltage between six and nine o-clock will show zero.
You got the idea you just typed it wrong.

12 and 6 will be zero
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