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05-17-2020, 01:05 PM
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#1
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Junior Member
Join Date: May 2020
Location: Lititz
Posts: 9
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50 Amp Shore Power Question
Hi All,
We have a 2019 Keystone Cougar 366 RDS. I'm brand new to the RV world, and this is my first post. My question is about the 50 Amp shore power wiring. We want to connect to a solar array that is 100 feet away, and I need to know what size wire to use. Here's my question: Is the 50 Amp cable 25 Amps on each of the hot wires, or actually 50 Amps on each wire? The difference is wire size is either #1 or #3/0. The cost difference is about $550 vs $800.
Thanks for your help,
John
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05-17-2020, 01:13 PM
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#2
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,357
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Welcome to the forum
50A service is actually 2 legs of 50A for a total of 100A. What are you trying to accomplish?
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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05-17-2020, 01:23 PM
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#3
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Senior Member
Join Date: Dec 2019
Location: Oregon High Desert
Posts: 1,554
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Hello John! Welcome to the forum!
Good luck on your solar project.
Take care!
__________________
Gary & Deb (44 years)
RV: Keystone 2013 Alpine 3495FL
TV: 2014 RAM 3500HD Laramie Long Box, 6.4 HEMI, 4x4, 4.10's, with Mopar Puck system, and a B&W Companion hitch.
Retired Firefighter/EMT.
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05-17-2020, 01:30 PM
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#4
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Senior Member
Join Date: Jul 2014
Location: Hemlock
Posts: 816
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Yup 50 amps on each hot leg.
__________________
R.J. and Ginger
2019 Ram 3500 6.7 HO, Aisin Trans 3:73
Reese Goosebox
2019 Sandpiper 379FLOK
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05-17-2020, 01:32 PM
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#5
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Junior Member
Join Date: May 2020
Location: Lititz
Posts: 9
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Quote:
Originally Posted by chuckster57
Welcome to the forum
50A service is actually 2 legs of 50A for a total of 100A. What are you trying to accomplish?
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We want to make sure we run the correct size wire so we can fully utilize both A/C units and everything else.
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05-17-2020, 01:34 PM
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#6
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,357
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Your trying to operate 2 AC's on just solar? That's a very ambitious goal
have you calculated the amps needed to run them and you can get that much from the panels?
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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05-17-2020, 02:13 PM
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#7
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Junior Member
Join Date: May 2020
Location: Lititz
Posts: 9
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The solar array is rated at 4 KW. With a auto start backup generator.
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05-17-2020, 02:23 PM
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#8
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,357
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As long as it’s producing 4K watts, you might be okay. RVs with 2 AC’s that I have dealt with have 5500W of gen power. AC units aren’t going to be the only items drawing power, you would have to turn things off to make sure you have enough watts /amps for both units.
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