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07-15-2021, 10:22 AM
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#1
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Member
Join Date: Jul 2018
Location: Valley Center, CA
Posts: 42
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Electrical question
As a "new" class A coach owner, is it possible to run a small class A with the 50 amp power cord connected to a 30 amp service for any length of time? If not what would be the main problems??
Thanks for your help with this.
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07-15-2021, 10:26 AM
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#2
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Senior Member
Join Date: Jul 2021
Posts: 454
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Quote:
Originally Posted by GuyV
As a "new" class A coach owner, is it possible to run a small class A with the 50 amp power cord connected to a 30 amp service for any length of time? If not what would be the main problems??
Thanks for your help with this.
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you would need an adapter to go from 50>30 amp and there should not be any problems.
the adapter will drop the one leg and provide the juice.
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07-15-2021, 10:30 AM
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#3
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Senior Member
Join Date: Apr 2021
Location: DFW
Posts: 1,648
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Main issues may be the AC unit(s).
__________________
2020 Chevy Silverado 1500
Forest River Wildwood XLite 263BHXL
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07-15-2021, 10:36 AM
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#4
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Senior Member
Join Date: Mar 2021
Posts: 519
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I dont see a reason this would hurt it. I keep an adapter in my motorhome for this exact purpose. I dont ever do extended stays, but it should be fine.
As long as you dont go over 30amps at one time throughout the rid and overload your camper your good. The shore power breaker will NOT go off unless 50+A is applied, which in this case is bad(normally 30). Thats the only concern I can think of. I use my camper the same exact way I normally would and its perfect.
__________________
"A Man's Gotta Do What a man's Gotta Do"
2000 Fleetwood Southwind Storm 30H- Workhorse
2016 Prime Time Tracer 3150BHD
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07-15-2021, 10:43 AM
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#5
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Senior Member
Winnebago Owners Club Ford Super Duty Owner
Join Date: Dec 2009
Posts: 2,529
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The black wire of the 30a side connects to both red & black of the 50 side....so both legs have power. But, as mentioned- you'll be limited in what you'll be able to use.
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2008 Winnebago Sightseer 35-J
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07-15-2021, 11:16 AM
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#6
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Senior Member
Alpine Owners Club
Join Date: Oct 2019
Location: Hoodsport Wa
Posts: 3,134
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Our 50a coach rests at home on 30a all the time. Never an issue using a 50a to 30a dogbone adaptor. Generally we just run the absorption fridge, battery charge converter, perhaps one 800w heater in the winter and a couple LED lights. I wouldn't attempt to run both AC units simultaneously though. A good EMS with power monitor will indicate your power consumption limitations.
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2000 Alpine 36 FDS #74058
04 Jeep Wrangler TJ
"On the road to find out..."
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07-15-2021, 11:38 AM
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#7
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Senior Member
Ford Super Duty Owner
Join Date: Dec 2010
Posts: 1,799
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I run my Georgetown 335DS all the time on 30 amps. I do have a 50 amp system but in reality that is for units that have 2 ACs. Mine has only one. Always use electric HW, electric fireplace, residential reefer and AC on 30 amps. Never even popped the 30 amp pedestal once. You should be fine.
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Scott Brownstein
Palm Island, Florida
2015 Georgetown 335DS
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07-15-2021, 12:40 PM
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#8
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Senior Member
Join Date: May 2020
Location: Ft Pierce, Fl
Posts: 1,368
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Quote:
Originally Posted by Sbrownstein
I run my Georgetown 335DS all the time on 30 amps. I do have a 50 amp system but in reality that is for units that have 2 ACs. Mine has only one. Always use electric HW, electric fireplace, residential reefer and AC on 30 amps. Never even popped the 30 amp pedestal once. You should be fine.
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Depending on the wattage of those appliances you could be very close to popping a CB. Possibly overloading the outlet when you first plug in. The RV should be fine with a 50A system, but the shore power side at 30 A continuous (say you had a 1500W water heater, a 1500W electric fireplace and a AC that drew 10A or 1200 watts).... you would be way over a 30A outlet rating.
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07-15-2021, 01:23 PM
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#9
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Senior Member
Ford Super Duty Owner
Join Date: Dec 2010
Posts: 1,799
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Quote:
Originally Posted by Psneeld
Depending on the wattage of those appliances you could be very close to popping a CB. Possibly overloading the outlet when you first plug in. The RV should be fine with a 50A system, but the shore power side at 30 A continuous (say you had a 1500W water heater, a 1500W electric fireplace and a AC that drew 10A or 1200 watts).... you would be way over a 30A outlet rating.
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Perhaps...but only Richard Nixon would turn up the AC and start a fire in the fireplace in the White House.
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Scott Brownstein
Palm Island, Florida
2015 Georgetown 335DS
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07-15-2021, 01:29 PM
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#10
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Senior Member
Winnebago Owners Club Ford Super Duty Owner
Join Date: Dec 2009
Posts: 2,529
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Wow, what brought that on?
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2008 Winnebago Sightseer 35-J
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07-15-2021, 01:38 PM
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#11
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Senior Member
Join Date: Aug 2008
Location: Georgia
Posts: 8,638
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Quote:
Originally Posted by GuyV
As a "new" class A coach owner, is it possible to run a small class A with the 50 amp power cord connected to a 30 amp service for any length of time? If not what would be the main problems??
Thanks for your help with this.
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The truth is yes but only if you watch you wattage. If you can get by with only running 1 air you should have no problems. Running 2 airs you would probably have around 6-8 amps left.
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2007 Fleetwood Revolution LE 40V
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07-15-2021, 01:58 PM
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#12
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Senior Member
Ford Super Duty Owner
Join Date: Dec 2010
Posts: 1,799
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Quote:
Originally Posted by puttin
Wow, what brought that on?
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Running the fireplace and AC on 30 amps!!!!
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Scott Brownstein
Palm Island, Florida
2015 Georgetown 335DS
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07-15-2021, 02:02 PM
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#13
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Senior Member
Join Date: Jul 2014
Posts: 35,424
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Quote:
Originally Posted by inthepines
you would need an adapter to go from 50>30 amp and there should not be any problems.
the adapter will drop the one leg and provide the juice.
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The adaptor powers up both legs, so your RV is sharing 30 amps instead of the 100 amps a 50 amp 120/240 service can supply.
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07-15-2021, 02:03 PM
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#14
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Senior Member
Join Date: Jul 2014
Posts: 35,424
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Quote:
Originally Posted by Duster73
I dont see a reason this would hurt it. I keep an adapter in my motorhome for this exact purpose. I dont ever do extended stays, but it should be fine.
As long as you dont go over 30amps at one time throughout the rid and overload your camper your good. The shore power breaker will NOT go off unless 50+A is applied, which in this case is bad(normally 30). Thats the only concern I can think of. I use my camper the same exact way I normally would and its perfect.
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The shore breaker is 30 amps. It will trip first.
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