Forum Discussion

biggjc's avatar
biggjc
Explorer
Dec 17, 2015

30 Amp Question

I have a question that will probably seem idiotic, but here goes. I am booked at a campsite that offers 50 amp service. My motorhome has a 30 amp plug-in. Can I
use a 50 amp to 30 amp pigtail type device without worry? I see them for sale for approx $20 , but want to make sure that I am Ok doing this. Many Thanks.
  • To simplify, the major difference between 30a and 50a is the amount of current that each can provide to your RV. If your RV has 30A service, it will/shouldn't draw more than 30A, and can be plugged into the 30A without fear of tripping the breaker by drawing too much current.

    50A service will (should!) have thicker wiring to handle larger current loads, and so should the wiring going to a 50A trailer. Therefore, you can plug into 50A service (with the appropriate plug adapter) since you won't be needing/using the increased current capacity anyway.

    The same - it should be clear by now - is not necessarily the case going the other way; i.e. a 50A RV plugging into 30A service. The 50A RV *could* try to draw more than 30A, which should cause the breaker to trip. My trailer - with 50A service - doesn't draw more than 20A with the AC on and the compressor running, so I can use 30A service if needed. That's not true for many 50A rigs, however.
  • 2112's avatar
    2112
    Explorer II
    I always use my 50A adaptor when I can. Many times the 30A pedestal receptacles are in poor shape while the 50A looks new.
  • biggjc wrote:
    I was pretty sure I knew the answer, but didn't want to be that guy who fried all of his electronics. Thanks again to all!
    Amps don't fry, volts do, which is why a good surge guard is recommended by many.
  • Thanks for the quick reply's! I was pretty sure I knew the answer, but didn't want to be that guy who fried all of his electronics. Thanks again to all!
  • Yes. That is what there for. Chances are they will have a 30 amp plugin on the pedestal right aside of the 50 amp anyway.
  • Yes, you can sure do that... Sometimes they advertise 50 amp and 30 amp is also available at the pedestal
    Joe

About RV Tips & Tricks

Looking for advice before your next adventure? Look no further.25,111 PostsLatest Activity: Feb 16, 2025