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Old 08-01-2016, 12:09 PM   #1
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30 Amp or 50 Amp?

I plan on installing a RV connection outside my house to plug in our 25' FC which requires 30 amp power. My question is should I go with 50amp and use an adapter? Is there any problem doing it that way?

Thanks
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Old 08-01-2016, 12:14 PM   #2
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Put in enough wire for 50 amp for future, install a 30 amp plug easily changed to 50 amp when you eventually need it. Saves having the adapter laying in the ground.


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Old 08-01-2016, 12:24 PM   #3
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There is no problem using the adapter except that you, well, need to use an adapter (one more thing to buy, keep track of, maintain, etc).

The only real benefit of a 50a outlet would be if you someday plan to have an RV that requires it. Even then, you would only need it if you plan to run more than 30a of loads while parked.
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Old 08-01-2016, 02:56 PM   #4
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Go 50 and you can run a/c, microwave, coffee pot, hair dryer at the same time without deciding what you can turn on without kicking the breaker.
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Old 08-01-2016, 04:49 PM   #5
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How about both?



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Old 08-01-2016, 05:34 PM   #6
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Being that you are in Blue Ridge, Georgia where Floridians go to get cool, 50 amps probably not needed. I installed 50 amps here at home, just as a precaution. I park the MH in the shade so only one a/c is sufficient but if It becomes my refuge due to a tropical storm, I would be using all systems and 50 would be more convenient.
Most campgrounds (state parks) have 30 and more are adding 50 so I carry adapters, using a 50 amp service with a 50 amp cord made more sense to me than the marginal 30.
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Old 08-01-2016, 05:37 PM   #7
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I do not see why it would cost much more to do the 50 amp if you are getting an electrician to do it.
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Old 08-01-2016, 07:28 PM   #8
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Make sure the electrician understands the particulars when installing your RV service.
Many people have had damage done to their coach because the receptacle was wired for 240 volts.
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Old 08-02-2016, 12:55 PM   #9
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Originally Posted by Bill M. View Post
I do not see why it would cost much more to do the 50 amp if you are getting an electrician to do it.
1) the cost of the wire is considerably higher, which makes a big difference if the breaker panel is some distance away.

2) in some cases the existing breaker panel may not be able to support a 50a circuit, either because there isn't, physically, room for the breaker -- or because of rules that limit the total amp draw of all circuits in the panel

3) If properly installed, a 50a outlet will include a disconnect switch at the outlet. 50a connections to an RV should not be connected or disconnected while the power is on because there is a possibility that the neutral could disconnect before the two hot lines, which can cause damage to loads in the RV from overvoltage.
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Old 08-02-2016, 03:09 PM   #10
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Go 50 and you can run a/c, microwave, coffee pot, hair dryer at the same time without deciding what you can turn on without kicking the breaker.


NOOOOOOOOOO!!!!!!!!

Using an adapter to plug an RV with a 30A service could leave the cord trying to draw more juice than it was designed to carry. Pulling more than 30A should cause the 30A circuit breaker in the trailer to trip. It's a disaster waiting to happen. Spend a little up front and have an RV pedestal installed by someone licensed and knowledgeable. That way, you can grow or, host another RVer who's service needs are different from yours.
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Old 08-02-2016, 03:12 PM   #11
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If I were paying an electrician, I would wire for 50 amp.

Labor is the same, and would be a lot cheaper than doing it all over later.


On a separate note, I am not sure I understand NY24's theory.

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JD
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Old 08-02-2016, 03:24 PM   #12
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I guess we see why I am not an electrician.
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Old 08-02-2016, 05:21 PM   #13
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30 Amp or 50 Amp?

If you install the system correctly you will have a sub panel with a 20amp, a 30amp and a 50amp breaker along with the appropriate receptacles matching the breakers.
If you have a coach which requires a 30 amp service you plug into the 30 amp receptacle and turn on the associated breaker.
Unless you have a coach with 2 air conditioners I doubt it will require more than a 30 amp service.
Do it once and do it right!
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Old 08-02-2016, 05:41 PM   #14
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Originally Posted by TG Twinkie View Post
If you install the system correctly you will have a sub panel with a 20amp, a 30amp and a 50amp breaker along with the appropriate receptacles matching the breakers.
If you have a coach which requires a 30 amp service you plug into the 30 amp receptacle and turn on the associated breaker.
Unless you have a coach with 2 air conditioners I doubt it will require more than a 30 amp service.
Do it once and do it right!
I'll quote him again;
Do it once and do it right!

Get the 50/30/20 amp pedestal. If you upgrade to a bigger or different trailer or RV in the future you'll be glad you paid a little more now than a lot more later.
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