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 > For the electrical gurus. Getting 50 Amp off two outlets?

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ov10mech

Chicago

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Posted: 11/14/17 03:31pm Link  |  Quote  |  Print  |  Notify Moderator

I am considering buying a 5th wheel that has two air conditioning units with 50 amp service. The location where it will be placed permanently only has 30 AMP service, so I will not be able to run both at once. However, there is a standard outlet about 20 feet away from the camper that could technically give me the juice needed to un that 2nd AC when I need to. The question is - is it possible to somehow combine these two power sources into a single 50 AMP input? Its a bit easier on a boat because there are two separate input plugs.

ov10mech

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Posted: 11/14/17 03:32pm Link  |  Quote  |  Print  |  Notify Moderator

I think I may have found my answer?

https://www.homedepot.com/p/Camco-50-Amp-Power-Grip-Power-Maximizer-Adapter-55025/205518970?cm_mmc=Shopping%7cTHD%7cG%7c0%7cG-BASE-PLA-D26P-Plumbing%7c&gclid=CjwKCAiAxarQBRAmEiwA6YcGKE1e7p1jLh-mk3u2R7vX0o3WKXEEFOksSqxPdYobRehoXU8vvB-hAxoC0RIQAvD_BwE&gclsrc=aw.ds&dclid=CJS3iaKPv9cCFYitaQod3CkBuw

ScottG

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Posted: 11/14/17 03:42pm Link  |  Quote  |  Print  |  Notify Moderator

Linkaroonie

Should work.
Of course, it isn't true 50A so you'll still need to watch your loads.


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john&bet

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Posted: 11/14/17 03:49pm Link  |  Quote  |  Print  |  Notify Moderator

Personally I would not do it. Retired industrial electrician.


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SoundGuy

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Posted: 11/14/17 03:50pm Link  |  Quote  |  Print  |  Notify Moderator

ov10mech wrote:

The question is - is it possible to somehow combine these two power sources into a single 50 AMP input?


A true 50 amp service, NO - the reason being that so-called 50 amp RV service is actually 100 amp service - i.e. 50 amps across each of 2 legs. With an adapter with one leg pulling from 30 amp service and the second leg pulling from 15 amp service your total draw will be limited to 45 amps, not 100 amps.

ScottG

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Posted: 11/14/17 03:52pm Link  |  Quote  |  Print  |  Notify Moderator

Retired EE here, if I really needed it and could not get true 50A to the trailer, I'd probably try it.
I see no danger in it.
JMHO.

Scott

ov10mech

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Posted: 11/14/17 03:52pm Link  |  Quote  |  Print  |  Notify Moderator

Just looking for enough to run the 2nd A/C unit.

Bill.Satellite

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Posted: 11/14/17 03:52pm Link  |  Quote  |  Print  |  Notify Moderator

The combiners do work but please understand that 50amp services provides you with 2 separate 50 amp legs or a total of 100 amps of service.
The combiners send 30 amps to each leg (or in your case 30 amps to one leg and 20 amps to the other) for a total of 60 (or 50) amps. That's still way better than only 30 amps but you have to keep your eye on what things are on which leg of service to ensure you don't trip on breaker or the other.
I should also add that if the 2nd connection has a GFCI plug or there is a GFCI in the circuit then the combiners will NOT work.

* This post was edited 11/15/17 05:19am by Bill.Satellite *


What I post is my 2 cents and nothing more. Please don't read anything into my post that's not there. If you disagree, that's OK.
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time2roll

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Posted: 11/14/17 04:17pm Link  |  Quote  |  Print  |  Notify Moderator

You are not going to combine power. Best shot is to break out the dedicated A/C branch circuit, remove it from the breaker panel and tie it to an inlet. Use an extension cord from the inlet to the second power source.

Search '5-15 inlet' on amazon


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Big Katuna

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Posted: 11/14/17 04:22pm Link  |  Quote  |  Print  |  Notify Moderator

You don’t need two 50A legs. I have mine breakered with 30A breakers which will let you run two ACs and the fridge just fine.

Maybe just run one more 120 wire to your existing 30A recep and replace your 30A recep with a 50A.

It would be cleaner.

Cheaper too as the wire is smaller. No need for #6.


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