With an adapter, can I plug my 30 amp rig into a 50 amp outlet?What I understand is, if I do not demand more than 30 amps at a time, I will not blow fuses,Somebody explain this 30 vs. 50 amp thing. I can buy a 30 to 50 amp adapter so it must be possible. Thank you

Yes, no problem plugging into 50amp. You will only draw what you need. Probably 30 max.

Yup... no problem. Probably 60-75 percent of the time Im at a campground it's a 30 Amp service and my trailer is 50 AmpOopps... misread your question. But, answer is still the same;.... Yes. As pointed out with the adapter below. I automaticall read 30 amp breaker to 50 amp trailer).Mike

The RV 50A MALE to 30A FEMALE long dogbone ADAPTER will look like thissGoogle ImageThe schematic of the adapter will look like this. NOTE: Only one HOT LEG is wired to your trailer. You will have 50A service all the way to your 120V Circuit breaker Panel but will only be allowed to use 30A of it otherwise you will trip the main 30A Circuit breaker ion your panel. The fuses you are reffering to are 12VDC fuses. None of this are involed with the 120VAC side of your panel...DMBRUSS ImageActually you will find the 50A service alot more reliable since most folks do you use this at the campgrounds. They most have the 30A Trailers...The only drawback i have heard about is the 30A Shore Power Cable may not be rated high enough for the 50A Service you are plugged into but seems to be safe as you only will be able to draw only 30AMPS through it...This is good RV Adapter to have in your tool box...Roy Ken

Always carry an adapter, from 50 down to 30, and one from 15-20 up to your 30 plug. if you are plugged in to a 20A supply, an overload will trip the source breakers. If you are plugged into 30 or 50A supply, overload will trip breakers in RV. May trip outside breakers on a weak 30A source. Use common sense and just don't overload. Its not like you are at home with a 300A supply.

30 amp rig plugged into 50 amp outlet | Good Sam Community

fla-gypsy
Explorer
Jun 23, 2016
ron.dittmer wrote:
Okay, Please educate the person typing this reply for I am a total idiot when it comes to these things.

I thought that 50 amp service is two 25 amp circuits. Is not the adapter providing 25 amp service? I thought using the 50 amp adapter provided less amperage than using the 30 amp service directly.

As stated it supplies 50 amps on 2 legs. It is preferred over the single 30A plug. When set up this way if you pull too much the RV main will trip not the pedestal breaker preventing you from having to go outside to reset.
j-d
Explorer II
Jun 23, 2016
DrewE wrote:
50A RV service is 50A 120/240V split phase service, so each leg is limited to 50A. It can supply a theoretical maximum of 12 kW, compared to 3.6 kW for 30A 120V RV service.

Which is why Fifty-Amp RV Service is really a Big Deal!

Ron, it took me awhile to understand that as well. 50A is close to four times what 30 can deliver.

Many 30A breakers in campgrounds get "weak" and trip way below rating. Often, using a 50>>30 a-Dapter (expressed in respect to Johnny Cash, called "adapter" by anybody else...) will get you onto a breaker that won't trip before the 30A main in your 30A coach will.

Drew mentioned split phase. One of those paired 50A breakers is on one phase and the other is on the opposite. This is like your house. So some campgrounds have "Fake 50"where the two breakers are actually on the same phase.

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30 amp rig plugged into 50 amp outlet

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