tvman44
Southwest Louisiana
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Joined: 09/25/2007
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Yes you can use it, it is done everyday.
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GMC_jon
Arizona/Virginia
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Joined: 09/25/2009
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Really is some BAD info here.
rhochnadel indicated he would advise IF YOU PM HIM!
That's the best advise in this thread!!!!!!!!!!!!!!
John
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wittmeba
Virginia
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Joined: 02/02/2001
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fishnlab,
You arent alone.
As indicated a 50 amp male <<--<< 30 amp female adapter will get a 30 amp rig connected to a 50 amp service. The adapter takes care or connecting properly providing the receptacle is wired properly for 240/120V 50 amp RV service.
The problem is everytime someone hears 50 amp they assume the service only provides 240VAC. This is NOT the case.
A 50 amp service will provide 2 - 50 amp 120VAC services and/or 1 - 50 amp 240 VAC service.
The proper adapters will make the connections correctly providing the receptacle/service/pedestal is wired correctly.
The top section of this image is what a 50 amp service should look like. A 30 amp adapter will take 1 line (L1 or L2), N and G and use them as if it were a 30 amp pedestal.
Relax and enjoy your company.
* This post was
edited 06/22/10 04:32pm by wittmeba *
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wittmeba
Virginia
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Joined: 02/02/2001
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rhochnadel wrote:I am absolutely amazed at the various opinions on how a 50 amp rv circuit is connected to a source, and just as amazed that they insist on expounding on their opinions.
So are we. 
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wittmeba
Virginia
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Joined: 02/02/2001
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fishnlab wrote:"If you had a 50amp 220v outlet installed, that's not going to work for their RV.
The communication is the problem. It is NOT a 220 VAC outlet. It is a 240/120VAC 50 amp service.
Quote:They need a 50 or a 30amp 110v outlet." ---These are the responses that concern me a bit.
And rightly so. You should be concerned until you fully understand what is (meant) to be said.
I dont think anyone intends to mislead anyone else, but we all know what we mean regardless of what we say. So it takes a little interpretation.
Quote:"Their 50/30 adapter will only draw power from one of the two hot wires that your 50 amp service makes available to them. The other will just sit there not being used."
Pretty much.
Your RV is just like any other appliance. You plug your cell phone charger which may only use 200ma into a 15 amp outlet and it doesnt smoke. Why? Because amps is pulled, not pushed.
Your RV will attempt to draw whatever demand you tell it to. You turn on the 1st and 2nd A/C, Microwave, Coffee maker, heater, refrig, every light run your water pump - it might try to draw 65 amps. But the limiting factor is always the circuit breaker in the load center where your electrical cable connects.
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kaydeejay
SE Michigan, USA
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Joined: 07/26/2004
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isuee94 wrote:They don't add together to 220V. They are separate circuits. My meter says they do and the elements in my kitchen stove say they do too.
My dryer used to before I switched it for a gas one, but the compressor in my house A/C says it runs on 220/240.
Keith J.
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LarryJM
NoVa
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Joined: 11/09/2007
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isuee94 wrote:kdenneny wrote:If you had a 50amp 220v outlet installed, that's not going to work for their RV. They need a 50 or a 30amp 110v outlet.
A 220 outlet has 2 110 wires (plus a ground) going to it. 110+110=220
A 110 outlet has one 110 wire and a common (plus ground). 110+0=110
The amperage is related to the wire and breaker size, based on expected load.
Incorrect. The 50A outlet has 4 wires. 2 Hots/Neutral/Ground. Each of the two hots has a 110V circuit. They don't add together to 220V. They are separate circuits. The 30A outlet has 3 wires. 1 Hot/Neutral/Ground. With an adapter plugged into the 50A outlet, the 30A plug can only connect to 3 wires. As stated above, as long as those three wires are Hot/Neutral/Ground you are fine.
Again incorrect and misleading information in that. The residential 220 electrical system does indeed have two 110 V sides that feed the main power panel in your house and to get 220 both sides are combined to run things like your range and A/C. That's why your main power panel in your home has two rows of CBs ... one for each side of the 220 service.
Larry
2001 standard box 7.3L E-350 PSD Van with 4.10 rear and 2007 Holiday Rambler Aluma-Lite 8306S Been RV'ing since 1974.
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LarryJM
NoVa
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Joined: 11/09/2007
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wittmeba wrote:fishnlab wrote:"If you had a 50amp 220v outlet installed, that's not going to work for their RV.
The communication is the problem. It is NOT a 220 VAC outlet. It is a 240/120VAC 50 amp service.
Quote:They need a 50 or a 30amp 110v outlet." ---These are the responses that concern me a bit.
And rightly so. You should be concerned until you fully understand what is (meant) to be said.
I dont think anyone intends to mislead anyone else, but we all know what we mean regardless of what we say. So it takes a little interpretation.
Quote:"Their 50/30 adapter will only draw power from one of the two hot wires that your 50 amp service makes available to them. The other will just sit there not being used."
Pretty much.
Your RV is just like any other appliance. You plug your cell phone charger which may only use 200ma into a 15 amp outlet and it doesnt smoke. Why? Because amps is pulled, not pushed.
Your RV will attempt to draw whatever demand you tell it to. You turn on the 1st and 2nd A/C, Microwave, Coffee maker, heater, refrig, every light run your water pump - it might try to draw 65 amps. But the limiting factor is always the circuit breaker in the load center where your electrical cable connects.
I could be wrong but I can't see how it would be possible to wire up a 220 V circuit in a residental home since 99.99% get a 220 split phase feed so any 220 will be from a four wire circuit.
Larry
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wittmeba
Virginia
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Joined: 02/02/2001
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The L1 and L2 of a 50 amp service dont add together to create 240V.
Each line is 180º out of phase with the other, in the AC sinewave at 90º and 270º the potential between the lines is 240V.
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boatms03
Groves, Tx
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Joined: 04/05/2010
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plug it in... if it is wired wrong the trailer will explode and then you will know LOL this post is funny so many different poeple saying the same thing with different words...... don't worry about you're good to go. at least you hired an electrician... a lot of people would have tried to do it themselves and.... well lets just say they ain't no electricians LOL!!!!
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