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Old 09-01-2014, 07:51 PM   #1
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How much voltage can it handle?

I have a 50-amp, 240-volt electrical outlet on the outside of my home that MIGHT give me a dandy way to supply enough juice to my trailer (2015 Columbus 320RS) to run my A/C units and everything else while parked in my home's driveway. But I'm unsure if the trailer will step down 240 volts at the converter/inverter or if I'll just fry everything in the trailer the instant the trailer gets a taste of that 240-volt power. I know the trailer's shore power cord and the connection to the trailer both say they'll handle up to 240 or 250 volts. But just because the shore power cord and the shore power connection say they can handle that much doesn't mean the inverter/converter can deal with it. Does anyone know if the inverter/converter in a travel trailer will allow the use of 240 volts? The outlet has been on the outside of our house since the previous owner (almost 28 years ago) and we never really paid much attention to it before. We tested it today and it is, indeed, live and producing 240 volts. The outlet itself is of a type that is outdated and would need to be replaced with a type that will accept a 21st century power cord's plug. Thanks for any help you can provide.
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Old 09-01-2014, 07:58 PM   #2
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Believe your fixing to fry your electric. 50 amp 120 volt is what it requires.
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Old 09-01-2014, 08:01 PM   #3
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All depends on the outlet. If it is 2 legs of 120v to make 240 volt, then it will work. If it is straight 240 volt with no neutral, it won't work and you could potentially fry everything.



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Old 09-01-2014, 08:03 PM   #4
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Quote:
Originally Posted by Ida Ratherbe Camping View Post
Believe your fixing to fry your electric. 50 amp 120 volt is what it requires.
X2

The outdoor connector and cord may be rated for 240, but your rig's internals are not. Not much effort to wire the outlet down to 110 at your fuse box though. Providing the receptacle will work for you.
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Old 09-01-2014, 08:11 PM   #5
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Thanks for the quick replies. I had a feeling that the trailer's electrical stuff wasn't meant to handle 240 volts.
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Old 09-01-2014, 08:17 PM   #6
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If it is only a 3 prong 240 volt outlet, all you need to do is run a neutral wire and put a new outlet in and BINGO, you have full 12000 watts of power to your RV.
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Old 09-01-2014, 08:39 PM   #7
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If he has the receptacle pictured he'll be in good shape. If it's a 3 prong receptacle and being its wired for 50A, he'd be best off to install a 120V/30A receptacle and change the wiring in the electrical service to feed it with 120V. If it's a breaker panel and it's wired with cable, the white wire will be made into the neutral (grounded) conductor by moving it to the neutral bar and the black conductor will remain the ungrounded (hot) conductor. There's no legal way to add a neutral wire to the existing circuit unless it's wired in conduit and there's enough room in the conduit for an additional conductor the same size as the two existing hot conductors.
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Old 09-01-2014, 09:39 PM   #8
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A 50 amp RV service IS a 120/240 volt split phase service. It utilizes a standard outlet of that type, as long as it's wired as ChooChooMan stated (has to have a neutral).

The RV will utilize each 120 volt line separately and keep it all 120 volts, for a total of 100 amps (50 amps per line).

These links may help:

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

http://www.rv-dreams.com/rv-electrical.html

http://www.rvpowerprotection.com/Lin...%20Service.pdf
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Old 10-26-2014, 05:30 PM   #9
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50 or 30 amp service

If a 30 amp travel trailer is plugged onto a 50 amp socket at a trailer park will it damage the electrical system of the trailer?
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Old 10-26-2014, 05:36 PM   #10
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Originally Posted by chaslorr View Post
If a 30 amp travel trailer is plugged onto a 50 amp socket at a trailer park will it damage the electrical system of the trailer?
no, because you can't do it without an adaptor anyhow and you will be limited to the 30amp breaker in the RV any how
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