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Old 11-02-2020, 02:35 PM   #15
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Originally Posted by Goodspike View Post
Depends on the RV. If it's a 20' trailer there would be little need for that much power.
Same components, same costs

OP has a 34.5' MH
so could benefit from FULL 50A service
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Old 11-02-2020, 02:47 PM   #16
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Originally Posted by Old-Biscuit View Post
Same components, same costs

OP has a 34.5' MH
so could benefit from FULL 50A service
Maybe, does it have two A/C units, or a washer dryer? Type of stove, and even refrigerator, etc. could also make a difference.

But yeah the difference in cost would be nominal. The biggest two differences I see would be one less conductor on the cable between the inlet and breaker box and one less 50 amp breaker. But with a full service you could even wire in some additional outlets on a new circuit if they were in short supply.
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Old 11-02-2020, 04:15 PM   #17
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They make this.

//www.amazon.com/RV-Cord-Adapter-14-50P-TT-30R-Handles/dp/B073WB5LBY/
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Old 11-02-2020, 04:16 PM   #18
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They make this.

//www.amazon.com/RV-Cord-Adapter-14-50P-TT-30R-Handles/dp/B073WB5LBY/
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Old 11-02-2020, 07:05 PM   #19
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Another way

I decided to have more power at less cost.
Bought an outside ckt breaker box holds 2 breakers.
Wired up a 220V male plug with a short 6 gauge wire into the breaker box.

I installed a 30 amp breaker on one side and a 20 amp on the other.
This split the incoming power L1 30amp / L2 20 amp 120V each side.
I wired all neutral wires to the neutral buss bar and wired all ground wires to each other isolated from the box.

I ran a short 10 gauge wire out of the box to an outside 30amp RV outlet.
I ran a short 12 gauge wire to an outside 20 amp 120V AC outlet.

I plug my 50amp box into the CG pedestal and plug the RV 30 amp plug into my 30 amp circuit breaker outlet.

I modified my RV by taking the output wire off the generator 20 amp circuit breaker and installed that wire to a newly installed 120Vac female outlet.

I installed a new 12 gauge wire onto the generator 20 amp breaker output and installed a 120V male plug on the end.

Normally I leave the plug from the generator into the newly installed outlet.

When at a CG I unplug the generator run a 10amp drop cord from my 20amp 120V outlet at the homemade circuit breaker box to the 120V newly installed outlet in the generator compartment.
I now run both AC's at the same time.

With a little bit of wiring work in the RV you could have an additional 20amp source in the RV I only use mine for a second AC.


Attempt this at your own risk.
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Old 11-02-2020, 07:45 PM   #20
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I want to preface this by saying that I haven't done this. I am no electrician, and haven't even stayed at a Holiday Inn Express for quite some time. This is mainly to satisfy my curiosity.

Having a 30 amp MH, I'm always reading and learning about the difference between 30a and 50a equipped RVs. I understand that a 30a is just a single leg, supplying 30 amps. I also understand that 50a is actually two individual legs, each supplying 50 amps. Is there any reason that 30a cord, breaker, and any cabling to the breaker panel in the coach, couldn't be changed to 50 amp capable components, but just don't connect one of the 50a legs in the plug? Isn't this exactly what is done when a 50a to 30a dog bone is plugged into a 50a pedestal plug? The extra 20 amps available would be huge. Am I missing something?
It is already done, just use a 50A to 30A dog bone adapter.
Keep in mind your breaker panel limits amperage available to 30A via the main breaker. I wonder if the wiring in your RV would be safe on 50A even if you did replace the main breaker panel
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Old 11-02-2020, 07:52 PM   #21
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It is already done, just use a 50A to 30A dog bone adapter.
Keep in mind your breaker panel limits amperage available to 30A via the main breaker.
I understand about the dog bone and I have one, but the original cord, wiring, and breaker still limits use to 30 amps. I was asking about replacing everything from the main coach breaker back to the pedestal to handle one of the 50 amp legs.
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Old 11-02-2020, 07:59 PM   #22
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Is there any reason that 30a cord, breaker, and any cabling to the breaker panel in the coach, couldn't be changed to 50 amp capable components, but just don't connect one of the 50a legs in the plug?
Yes, STANDARDS.
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Old 11-02-2020, 08:52 PM   #23
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Not what the OP is asking about but it may help someone run two air conditioners from a 30 amp pedestal. Most have an additional 20 Amp receptacle on a separate breaker. I installed a 20 amp male and female plug into my front AC unit. The wire was easy to get to in the basement. And I used a 12 gauge extension cord from the pedestal to the basement where I unplugged the air condition and install the extension cord. When 50 Amps was available, I just plugged the AC back into the existing circuit. This worked on a 50 Amp Raptor Toy Hauler when 50 Amp was not available.
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Old 11-02-2020, 09:55 PM   #24
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Yes, STANDARDS.
I'm not sure what you mean.
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