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Old 06-16-2012, 01:23 PM   #1
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50 amp 110 volts or 220 volts?

Hello, this sight is very helpful, glad I can be a part of it. I have a question but not sure where to start this thread, my question is, I have a 2008 Silverback 35L4QB and love it, I'm adding a 2 nd a/c and most parks I visit have only 30 amp service, an electrician at work is makin me an adapter so I can run both a/c's from the 30 amp meter loop. I have 50 amp service in my 5th wheel and the question he asked me was,"does your 50 amp service utilize 220 volts or does it stay 110 volts?" I've read that only high end motor coaches utilize 220 volts thru their 50 amp service but I was wanting to make sure mine did not. Any help would be appreciated.
Thanks, Jason
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Old 06-16-2012, 01:30 PM   #2
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Quote:
Originally Posted by jason long
hello, this sight is very helpful, glad i can be a part of it. I have a question but not sure where to start this thread, my question is, i have a 2008 silverback 35l4qb and love it, i'm adding a 2 nd a/c and most parks i visit have only 30 amp service, an electrician at work is makin me an adapter so i can run both a/c's from the 30 amp meter loop. I have 50 amp service in my 5th wheel and the question he asked me was,"does your 50 amp service utilize 220 volts or does it stay 110 volts?" i've read that only high end motor coaches utilize 220 volts thru their 50 amp service but i was wanting to make sure mine did not. Any help would be appreciated.
Thanks, jason
110v !
By the way welcome to the forum!
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Old 06-16-2012, 01:32 PM   #3
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Thank you very much!!!!! Thanks for the welcome!!!!
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Old 06-16-2012, 02:05 PM   #4
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Have a look at this site and show it to your electrician, he should understand it or you can buy a 30 to 50 amp adapter at any RV dealer/Camping World

RV Wiring
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Old 06-16-2012, 03:22 PM   #5
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2 a/c on 30 amp will work, but dont plan on running much else...i know my 2 15k units will pop a 30 amp breaker.....i can only camp using one a/c on most 30 amp panels.....your a|/c may not pull as much juice tho.....

Good luck!
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Old 06-16-2012, 04:08 PM   #6
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Hello and welcome to the Forest River Forums. Got to agree that this site is great.

Take care,
Terier
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Old 06-16-2012, 08:51 PM   #7
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I can't run my two AirCons on a 30amp service as each is fused for 20 amps.

Keep in mind a 50 amp service brings in two independant 50 amp 120 volt circuits for a total of 12,000 watts while a 30 amp service only brings in a single 30 amp line for 3,600 watts. With only one quarter of the power you have a lot less to work with when you figure in the background load of the convertor charging the batteries, the CO2 detector, the LP shutoff valve, and the fridge and the hot water heater kicking in.

Even running 1 AirCon I have to be careful on what else I use on a 30amp circuit eg I turn off the AirCon when I use the microwave. If you cause an undervoltage situation in the RV you can start frying electronics. There are lots of websites that list the power consumption of most of the devices in an RV so you can do mental math to get the most out of a 30 amp service.

My RV, like yours, is wired for a 50 amp service(actually 100 real amps) so the AC panel has two sides where each side of the panel is energized by one of the 50 amp lines of the service. A standard 30amp to 50amp (or 15amp to 50amp) adapter just connects the single service line to both sides of the AC panel. This means the 100 amps of potential appliances have to share a single 15 or 30 amp feed. You need to be very careful not to go undervoltage and begin damaging things when doing this.

I also have an adapater that lets me connect to a 30amp and a 15 amp service at the same time. The 30 amp energizes one side of my AC panel(and I run the AirCon on that side of the panel) while the 15 amp service energizes the other. Note I still can't run two AirCons with this setup, and its still less than half of the wattage of a 50 amp service, it just buys me a bit more breathing room for computers, TV's and small appliances.

Hope this helped as opposed to confusing you even more
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