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04-14-2015, 04:31 PM
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#1
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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50 amp electrical question
I'm wiring in an Autoformer for my neighbor inside the storage compartment. I'm going to use a 50 amp female oven plug (NEMA 14-50)coming off the main power in. I'm wanting to buy a four foot 50 amp male pigtail (male plug on one end ... bare wires on the other)to replace the existing power cord into the breaker box. The Autoformer will plug in between these cord ends. As for the 50 amp pigtail ... RV pigtails ($$$$) come with three #6 wires and one #8 for the ground. 50 amp electric stove pigtails (like at Lowes) come with two #6 wires and two #8 wires. Are the #8 wires for the ground as well as Neutral OK for an RV or should I get the pigtail with L1, L2, and Neutral being #6 wire and ground #8 wire?
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04-14-2015, 04:47 PM
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#2
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,167
M.O.C. #6433
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Why are you wanting to use a dryer plug? Get the standard RV type plugs and outlets so there will never be a question about being wired properly.
Click on 50 amp service at the link below
RV wiring
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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04-14-2015, 05:51 PM
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#3
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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Female 50 amp oven plug and the male end of an RV 50 amp cable are the same configuration. The Autoformer has the same 50 amp male end as your power cord. There's no question in wiring it up as they are the same L1, L2, Neural, and ground... I just want a "sparkie" to chime in on the issue of the Neutral wire being a #8 and not a #6 on some pigtails listed on various websites.
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04-15-2015, 02:30 AM
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#4
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,167
M.O.C. #6433
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For the RV the neutral should be the same size as the hots as it could potentially carry as much as 50 amps, same as each hot wire.
Since an oven is primarily a 220 device the neutral only has to carry current for lights, clocks, timers, etc.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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04-15-2015, 03:43 AM
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#5
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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I'd PM Jim Fischer.
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Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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04-15-2015, 03:44 AM
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#6
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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Thanks for the explanation ... looks like I'll order the right pigtail. No local RV dealer has what I want that's long enough.
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04-15-2015, 04:46 AM
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#7
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Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
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Agree with BB, neutral should be same as L1/2. Ground is #8 as it is safety line...not current carrier. John
__________________
2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
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