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50 Amp to 30 Amp

dtzackus
Explorer
Explorer
We are going to a wine fest and the area we are camping has 50 Amp electric service, our rig takes 30 Amp service. If I purchase an adaptor from 50 Amp (male) to 30 Amp (female), will it be ok? I am not sure if the 20 extra amps will harm anything..

Thanks in advance.
Dan, Tammy, Cory, Leah and Adam
2016 Chevy Silverado 2500HD 6.0
2018 Highland Ridge Open Range OF374BHS
GM Integrated Trailer Brake Controller
17 REPLIES 17

kaydeejay
Explorer
Explorer
bobsbbq wrote:
kaydeejay wrote:

FWIW (and not trying to confuse you) a 50A service is in fact TWO 50A services at 110 volts each. That adapter you need will only draw from one side of that 50A service.
Does this mean you could effectively use a total of 70 Amps? Meaning if you had your 30 Amp service for TT and you had a separate box to distribute the 50 Amp service to say electric heaters. The 50 amp circuit would be separate from the 30 Amp.

I thought the service on the pedestal was 50 Amp maximum.
The 50A service at the pedestal is TWO separate 50A services at 110 volts, or a single 50A service at 220volts.
You can slice and dice them any way you want with appropriate adapters and connections.
IOW if you want to break out half that circuit to a separate feed into you unit powering electric heaters, you are perfectly at liberty to do so.
Just watch for current draw in cables that are not rated high enough for the combined current you could draw with multiple heaters. It is theoretically possible to draw 6000 watts from EACH half of a 50A service.
Keith J.
Sold the fiver and looking for a DP, but not in any hurry right now.

Passin_Thru
Explorer
Explorer
IDK, I thought electricity was just smoke inside wires trying to escape and usually does with my equipment.

bobsbbq
Explorer
Explorer
kaydeejay wrote:


FWIW (and not trying to confuse you) a 50A service is in fact TWO 50A services at 110 volts each. That adapter you need will only draw from one side of that 50A service.


Does this mean you could effectively use a total of 70 Amps? Meaning if you had your 30 Amp service for TT and you had a separate box to distribute the 50 Amp service to say electric heaters. The 50 amp circuit would be separate from the 30 Amp.

I thought the service on the pedestal was 50 Amp maximum.
5th Wheel 2002 Sunny Brook Mobile Scout 31BWFS

engine31
Explorer
Explorer
As others have pointed out you should have no issues with the 50A to 30A go a head and get the adapter I had the same questions as you a few years ago.

dtzackus
Explorer
Explorer
Thanks everyone!! I kinda figured it would be ok, but figure I'd ask the "experts." Have a good New Year Everyone!!
Dan, Tammy, Cory, Leah and Adam
2016 Chevy Silverado 2500HD 6.0
2018 Highland Ridge Open Range OF374BHS
GM Integrated Trailer Brake Controller

2112
Explorer II
Explorer II
I have a 30A FW and use the 50A-30A adapter whenever a 50A connection is available. The 50A pedestal connection and 50A breaker is less abused and are usually in better condition than the 30A.
2011 Ford F-150 EcoBoost SuperCab Max Tow, 2084# Payload, 11,300# Tow,
Timbrens
2013 KZ Durango 2857

jaycocreek
Explorer II
Explorer II
I carry an adapter in my rv all the time and have used it numerous times without issue. You never know when you might need it.. Surprise, no 30 amp plugin at x rv park but they do have a 50. It happens.
Lance 9.6
400 watts solar mounted/200 watts portable
500ah Lifep04

bob213
Explorer
Explorer
Get the adapter. You will more than likely find that in a lot of places the 50amp is in better shape than the 30 amp. I always plug in(with the adapter) to the 50amp if the 30amp looks worn.
You can avoid reality, but you cannot avoid the consequences of avoiding reality – Ayn Rand

kaydeejay
Explorer
Explorer
dtzackus wrote:
We are going to a wine fest and the area we are camping has 50 Amp electric service, our rig takes 30 Amp service. If I purchase an adaptor from 50 Amp (male) to 30 Amp (female), will it be ok? I am not sure if the 20 extra amps will harm anything..

Thanks in advance.
Nothing is going to force those extra amps into your trailer- it will only draw what is being used up to your 30A maximum, limited by the main breaker in your trailer.

Think of that table lamp with a 60w light bulb plugged into a 15A outlet at home. You will only draw 60watts (or a little more than .5amps), it will not use the full 15amps just because it is available.

FWIW (and not trying to confuse you) a 50A service is in fact TWO 50A services at 110 volts each. That adapter you need will only draw from one side of that 50A service.
Keith J.
Sold the fiver and looking for a DP, but not in any hurry right now.

DutchmenSport
Explorer
Explorer
Get the adapter, you'll have no problems.

Been using a 50 to 30 for several years now on two different TT's now.

PawPaw_n_Gram
Explorer
Explorer
Never had a problem doing that when I had a 30Amp trailer, and don't have a problem connecting my current 50Amp trailer to a 30Amp pedestal (I just can't run two ACs at the same time or a few other items).

The adapters sold by RV stores work very well. You don't have to worry about the details.
Full-Time 2014 - ????

“Not all who wander are lost.”
"You were supposed to turn back at the last street."

2012 Ram 2500 Mega Cab
2014 Flagstaff 832IKBS TT

enblethen
Nomad
Nomad
You should have no problems.
Many sites say they are 50 amp but also have a 30 amp receptacle.
Get the adapter, you will need it in the future.

Bud
USAF Retired
Pace Arrow


2003 Chev Ice Road Tracker

JamesBr
Explorer
Explorer
You won't harm a thing. Your campers main breaker as already pointed out will ensure you can overdraw the system. Down in FL its the norm in some campgrounds that they only have 50A posts. Friends with a 30A rig have never had a problem and we go down every year for a couple weeks.
2006 Ford F350 6.0
2014 Primetime Sanibel 3600
Enough other vehicles to not bother listing.

Previous RV: 2001 Monaco Knight

mhardin
Explorer
Explorer
NORM WADDELL wrote:
You R V's input/incoming circuit breaker is rated at 30 Amperes
and will trip if you exceed that


Only if your usage exceeds 30 Amps.
2013 Ford F-350, 4x4, Crew Cab, Long Box.
2001 Jayco Eagle 266 FBS.
2014 Heartland Elkridge 37 Ultimate.