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Old 03-26-2015, 05:30 PM   #1
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Generator with 50 amp RV outlet?

Good day all trying find a portable Generator that has 50 amp RV outlet. Have found some with 30 amp outlets, but no 50 amps yet. Would appreciate any help and sorry if this questioned has been asked before. I am new to the forum and could not locate.

Thanks again
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Old 03-26-2015, 05:34 PM   #2
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Originally Posted by Lawdawg337 View Post
Good day all trying find a portable Generator that has 50 amp RV outlet. Have found some with 30 amp outlets, but no 50 amps yet. Would appreciate any help and sorry if this questioned has been asked before. I am new to the forum and could not locate.

Thanks again
What all are you trying to run in your 50 amp RV off of a generator?

The reason I ask is wattage is the main thing to be aware of as generators are rated as such. How much you will need, is a deciding factor.

You can use an adapter to plug a 50 amp into a 30 amp, but here again you need to know how much wattage all of your appliances and such will need.

Watts = volts X amps

so a 30 amp RV needs, for full power

3600 watts = 120 volts X 30 amps
-------------------------------------

A 50 amp RV is actually two legs of 120 volts (100 amp total) and is misunderstood often. It has two legs at 50 amp per leg.

so to fully power a 50 amp RV's capabilities (but is hardly ever used in real life)

12000 watts = 120 volts X 50X2 (100 amps)

If you can figure out what all you need to power and the wattage, you can size accordingly for a generator.

This may help:
http://rv-roadtrips.thefuntimesguide...generators.php

-----------------------------

Here is a portable one with a 50 amp receptacle (but it may not provide 50 amps per leg though). So even though it has a 50 amp receptacle, it may not provide enough wattage per leg for your RV if you are running both air-conditioners, etc. I haven't checked the specs on it to see exactly how much it provides per leg on the 50 amp. It may provide plenty. It is not going to be quiet generator though, and noise is another consideration you may have to account for in your determination.

http://www.homedepot.com/p/Champion-...1534/203649714

We have some real expert generator gurus here on the forums, and I'm sure they will be able to provide better advice or correct anything I messed up on.
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Old 03-26-2015, 07:00 PM   #3
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a generator to meet those requirement would be very large in size and well over 300 lbs. The engine size required for that would be over 20hp and burn around 2 gallons per hour at heavy load.
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Old 03-26-2015, 08:08 PM   #4
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A 50 amp RV is actually two legs of 120 volts (100 amp total) and is misunderstood often. It has two legs at 50 amp per leg.
I think you mis-spoke on this one....it is 2 legs but 50 amps total. This diagram makes it clear.


The 240V combination possible with mis-wiring in parks is generally what everyone gets excited about... but the amps are in the 50 range total as you can verify by turning on the microwave when the coffee & AC is on!
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Old 03-26-2015, 08:17 PM   #5
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Yes, it's 100 amps total. 2 individual 50 amp busses within a 50 amp service RV. Each bus is a different phase. Typically all the electrical items are assigned to a bus (1 AC on one bus the other AC on the other etc.) that will approach balancing.
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Old 03-26-2015, 08:27 PM   #6
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The 240V combination possible with mis-wiring in parks is generally what everyone gets excited about... but the amps are in the 50 range total as you can verify by turning on the microwave when the coffee & AC is on!
If wired properly you will have 50 amps per leg. If the CG owner puts a lower amp service to supply the box you will have less the 100 amps total. Plus if the AC, coffee and microwave are on the same leg of power you will over load that leg. Plus many 50 amp units have two AC units. If they only had 50 amp total then you could not run 2 AC units at the same time plus any thing else in the unit.
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Old 03-26-2015, 08:40 PM   #7
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Originally Posted by camaraderie View Post
I think you mis-spoke on this one....it is 2 legs but 50 amps total. This diagram makes it clear.


The 240V combination possible with mis-wiring in parks is generally what everyone gets excited about... but the amps are in the 50 range total as you can verify by turning on the microwave when the coffee & AC is on!
That's why I said that the 50 amp is often misunderstood. As the others have pointed out, it is 50 amp per leg (100 amps total).

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Originally Posted by wmtire View Post
A 50 amp RV is actually two legs of 120 volts (100 amp total) and is misunderstood often. It has two legs at 50 amp per leg.
Here are some more links that explain it better than I can.

RV Electric
(click the 50 amp service tab on the left side of the screen)

RV Electrical Systems
(scroll down to 50 amp vs 30 amp)

The main thing to remember that even with a 50 amp service, the two hot legs are utilized separately and everything in the RV is still 120 volts.

It took me awhile to get my head straight on all this too.
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Old 03-26-2015, 09:06 PM   #8
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50 amp service

something doesn't sound right,,, if 50 amp service can supply 100 amps wouldn't it be called 100 amp service ?
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Old 03-26-2015, 09:10 PM   #9
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something doesn't sound right,,, if 50 amp service can supply 100 amps wouldn't it be called 100 amp service ?
no, because both legs are hooked to one 2 pole breaker, and if either leg exceeds 50 amps, both circuits are dead. Basically you could draw 1 amp on 1 leg and hit 51 on the other, and blow the breaker. To be 100 amps of service it would have to be wired on a way that you would need to exceed 100 amps to blow breaker
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Old 03-26-2015, 09:19 PM   #10
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I purchased a Champion generator at Costco that has both 30 and 50amp outlets. Came with the wheel kit, battery for push button start. Runs everything including both a/c units just fine. Down side is the weight of the unit.
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