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Open Roads Forum  >  Fifth-Wheels

 > 50 amp and 30 amp service

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ccjordan

Maine

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Posted: 03/29/12 09:52am Link  |  Print  |  Notify Moderator

We have a new fifth wheel and the campground we at going to only has 30 amp service available. I realized that means we should not utilize Air, and other things at the same time. Can the 30 amp hurt our camper??? Thanks we are new at RVing.

JoeGood988

S.Dakota

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Posted: 03/29/12 10:03am Link  |  Print  |  Notify Moderator

You can run your air, you just might trip the breaker if you turn on the micrwave, toaster & hair dryer at the same time. I always carry a reducer allowing me to step down from 50 to 30 amp. Many state & national parks are only 30 amp along with some older campgrounds. Not a problem at all.


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Pipeman

Windsor, Ontario,

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Posted: 03/29/12 10:03am Link  |  Print  |  Notify Moderator

One word answer- no. It won't hurt your trailer and you can use your AC...if you don't use the microwave at the same time. My 5er is a 50 amp hook up but I use a 4000 watt genny with a 30 amp outlet and we dry camp most of the time. If you haven't got one, get a 50 to 30 amp adapter or you can get a 50 to 30 amp power cord that hooks up to your trailer just like the 50 amp cord. Have fun and enjoy.


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Here'n'There

Texas

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Posted: 03/29/12 10:13am Link  |  Print  |  Notify Moderator

Pipeman wrote:

One word answer- no. It won't hurt your trailer and you can use your AC...if you don't use the microwave at the same time. My 5er is a 50 amp hook up but I use a 4000 watt genny with a 30 amp outlet and we dry camp most of the time. If you haven't got one, get a 50 to 30 amp adapter or you can get a 50 to 30 amp power cord that hooks up to your trailer just like the 50 amp cord. Have fun and enjoy.


I don't mean to put too fine a point on this but the OP is a Newbie so let me state it this way...

You WILL NEED a 30 to 50amp adapter to plug into the 30amp power pedestal at your campsite. The reason is that the male "plug" at the end of your 50amp power cord (with 4 prongs) will NOT fit into the 30amp socket in the pedestal (3 slots).

I would go with the adapter, available most all RV supply stores as you will need it from time to time and it's much smaller that getting a whole new power cord specifically for 30amp connections.


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bpounds

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Posted: 03/29/12 10:16am Link  |  Print  |  Notify Moderator

You can run one A/C. If you have two A/C units, one won't run.


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John Bridge

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Posted: 03/29/12 10:29am Link  |  Print  |  Notify Moderator

On 30 amp I run the smaller of two ACs. I also do not allow, microwave, toaster, coffee maker, hair dryer, curling iron , anything with a heating element to run when the AC is being used.

I have 30 and 20 amp adapters. Many parks in Canada and a few in the U.S. only offer 20. That means no AC at all unless you've got a small one.


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Old-Biscuit

Verde Valley

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Posted: 03/29/12 10:34am Link  |  Print  |  Notify Moderator

50A.....30A.......20A etc. are all 110V AC so NO you will not hurt your RV using the 30A.

As stated: You will need a 30A to 50A adapter like one of these

Plug the three prong male end into CG Pedestal 30A receptacle and then plug your 50A power cord into it.

You will only be able to pull a total of 30A......most everything will run in your RV.

Another handy device is a Voltage Monitor like this

Low AC Voltage can be very harmful.

Course you might also want to invest in a surge protector

They check that the CG Pedestals are properly wired and will trip on High/Low Voltage, auto-reset when correct voltage is restored etc. They come in portable and hard wired models.

Everything I've listed can be found at most RV outlets or on-line. The pictures are from CW site.

Enjoy your trip......

christopherglenn

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Posted: 03/29/12 10:36am Link  |  Print  |  Notify Moderator

I have a 50-30 adapter that screws ont the connector on the side of my trailer, I plug that into a 30-15 and a cheap extension cord when at home. 20 amps is more then enough for any rv ac - if nothing else is on. The converter (if charging batteries) may be enough to put the combined load beyond 20 amps. Don't forget tv + satellite / dvd may be close to an amp. 30 amp service is enough for the ac and (unless your batteries are deeply discharged) the converter without problems. Think about all the 30 amp trailers that run the converter, electric water heater, and AC at the same time.


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Ashbourne

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Posted: 03/29/12 10:55am Link  |  Print  |  Notify Moderator

Just an aside to the OPs question
European AC voltage is 240v so is a 16amp supply the same as an American supply of 35 amps
eg. 240v at 16 amps = 3840 watts
110v at 35 amps = 3850 watts
Just curious
Mark.

Old-Biscuit

Verde Valley

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Posted: 03/29/12 12:32pm Link  |  Print  |  Notify Moderator

Ashbourne wrote:

Just an aside to the OPs question
European AC voltage is 240v so is a 16amp supply the same as an American supply of 35 amps
eg. 240v at 16 amps = 3840 watts
110v at 35 amps = 3850 watts
Just curious
Mark.

Available power...yes

Except.....if you plug an RV into a 220V nothing will work cause it will be fried. 50A is two 110v hot leads, a ground and a neutral

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