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09-25-2021, 12:18 PM
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#1
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Member
Fleetwood Owners Club
Join Date: Sep 2021
Location: NY
Posts: 36
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30 Amp 110v limitation
My new used 2000 Southwind was built with a 30 amp 110v service limitation. I was looking to see if anyone has information where I can purchase a drop in 50a 220v service panel. Something that will fit into the space provided. Then I can distribute the loads and run both Air conditioners and other appliances.
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09-25-2021, 12:20 PM
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#2
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Senior Member
Join Date: Oct 2014
Posts: 7,882
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You will need a LOT more than a "drop in breaker box" to convert from 30 to 50 amp service.
New shore power cord, new wiring from there to ATS, new ATS, new wiring from ATS to breaker box and new breaker box.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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09-25-2021, 12:32 PM
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#3
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Member
Fleetwood Owners Club
Join Date: Sep 2021
Location: NY
Posts: 36
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I’m aware of that. Need that to start planning the project and design the upgrade. I’m an electrical engineer.
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09-25-2021, 12:46 PM
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#4
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Senior Member
Join Date: Nov 2015
Posts: 26,848
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30A 120VAC panel.....check brand/model of that Power Center and then look up 50A 240V RV AC Power Panel
https://www.progressivedyn.com/rv/po...s/4500-series/
https://www.bestconverter.com/Distri...nels_c_52.html
50A 4 wire power cord (25' minimum).....#6 ga wire from cord termination to 50A ATS, #6 wire to New 50A AC Panel, Two 50A CBs, 15/20A Individual CBs as needed for the different circuits (6-12 CBs)
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Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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09-25-2021, 01:06 PM
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#5
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Senior Member
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 8,889
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When we had our 1997 Fleetwood Discovery with the 30 amp system, I was able to run both roof top air conditioners and other things like lighting and entertainment etc. Best to my memory the biggest limitations were running the washing machine or microwave while running both air conditioners. But the EMS (energy management system) would automatically shed ... I believe the rear air conditioner so the other things would run.
Are you having problems getting both roof airs to run, or just when something else big needs to run?
__________________
Good Luck, Be Safe and Above All, Don't Forget To Have Fun 
Pete
Central Kentucky
2006 Fleetwood Discovery 35H, 2014 Honda CR-V, M&G Engineering Braking System
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09-25-2021, 01:21 PM
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#6
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Senior Member
Join Date: Sep 2020
Location: Houston
Posts: 341
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Note: It is not 50 amp. 220 volt service, but 2 50 amp. 120 volt service.
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09-25-2021, 04:53 PM
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#7
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Member
Fleetwood Owners Club
Join Date: Sep 2021
Location: NY
Posts: 36
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Quote:
Originally Posted by ROUGHRIDER3
Note: It is not 50 amp. 220 volt service, but 2 50 amp. 120 volt service.
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TY. Understood. If I run both ac units continuously it trips the 30 main after an hour.
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09-25-2021, 05:26 PM
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#8
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Senior Member
Join Date: Jul 2014
Posts: 35,446
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Quote:
Originally Posted by ROUGHRIDER3
Note: It is not 50 amp. 220 volt service, but 2 50 amp. 120 volt service.
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Yes it is 50 amp, 240 volt service.
2 120 volt services would need 5 wires in the power cords and plugs. 2 hots, 2 ,neutrals and a ground.
1 240 volt service uses 2 hots, one shared neutral and a ground.
Being out of phase, the neutral only carries the difference between the hots and never more then 50 amps.
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09-25-2021, 05:43 PM
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#9
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Senior Member
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 8,889
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I would check to see just how many amps are being used. A healthy circuit breaker should be able to handle 30 amps for ever and ever. Maybe something else is coming online like a water heater element causing the breaker trip.
Curious as to which roof air conditioner you have. Mine only draw 11+- amps each.
__________________
Good Luck, Be Safe and Above All, Don't Forget To Have Fun
Pete
Central Kentucky
2006 Fleetwood Discovery 35H, 2014 Honda CR-V, M&G Engineering Braking System
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09-25-2021, 05:48 PM
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#10
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Senior Member
Join Date: Apr 2005
Posts: 4,461
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Quote:
Originally Posted by Bigd9
I would check to see just how many amps are being used. A healthy circuit breaker should be able to handle 30 amps for ever and ever. Maybe something else is coming online like a water heater element causing the breaker trip.
Curious as to which roof air conditioner you have. Mine only draw 11+- amps each.
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No. A 30 amp breaker is typically rated to provide 24 amps continuous. It gets a little more complicated than that but suffice to say 24 amp continuous is your max. Yes it can support more than that for a period of time.
If you want both AC’s on make sure your fridge and water heAter are on propane. That might get you under.
Cheers.
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09-25-2021, 05:55 PM
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#11
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Senior Member
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 8,889
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Quote:
Originally Posted by radar
No. A 30 amp breaker is typically rated to provide 24 amps continuous. It gets a little more complicated than that but suffice to say 24 amp continuous is your max. Yes it can support more than that for a period of time.
If you want both AC’s on make sure your fridge and water heAter are on propane. That might get you under.
Cheers.
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I stand corrected. Thanks 
__________________
Good Luck, Be Safe and Above All, Don't Forget To Have Fun
Pete
Central Kentucky
2006 Fleetwood Discovery 35H, 2014 Honda CR-V, M&G Engineering Braking System
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09-25-2021, 06:00 PM
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#12
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Senior Member
Winnebago Owners Club
Join Date: Sep 2015
Posts: 1,813
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Quote:
Originally Posted by gkurtz
My new used 2000 Southwind was built with a 30 amp 110v service limitation. I was looking to see if anyone has information where I can purchase a drop in 50a 220v service panel. Something that will fit into the space provided. Then I can distribute the loads and run both Air conditioners and other appliances.
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A 50 amp Rv is still 120 volts. 220 would fry every electrical device you have. You want a panel with 2 50 amp 120 legs.
__________________
2006 Winnebago Journey
39K
Cat C7
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09-25-2021, 06:08 PM
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#13
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Senior Member
Join Date: Nov 2015
Posts: 26,848
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Quote:
Originally Posted by amosnandy
A 50 amp Rv is still 120 volts. 220 would fry every electrical device you have. You want a panel with 2 50 amp 120 legs.
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A little reading for your clarification
https://www.myrv.us/Imgs/PDF/50-amp%20Service.pdf
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I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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09-25-2021, 06:13 PM
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#14
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Senior Member
Join Date: Jul 2018
Posts: 4,925
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Quote:
Originally Posted by ROUGHRIDER3
Note: It is not 50 amp. 220 volt service, but 2 50 amp. 120 volt service.
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Eh, not. It's 50 amp 120/240 split phase service. It is NOT 2 50 amp 120v services.
__________________
2005 Four Winds Majestic 23A
“To the world you may be one person; but to one person you may be the world.” - Dr Suess
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