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08-05-2022, 01:03 PM
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#1
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Junior Member
Join Date: Mar 2022
Posts: 15
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Hooking to shore power
I wanted 30 amp power at home to plug rv into. I used a 240 two pole 30 amp breaker and when I plugged rv into it it tripped house breaker and later found two breakers tripped on rv. Rather than take a chance I just plugged into 20 amp plug and could only use one ac. Should this have been a 120 single pole breaker 30 amp?
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08-05-2022, 01:06 PM
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#2
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Senior Member
Join Date: Oct 2014
Posts: 7,881
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Quote:
Originally Posted by Jj 2004 Rv
I wanted 30 amp power at home to plug rv into. I used a 240 two pole 30 amp breaker and when I plugged rv into it it tripped house breaker and later found two breakers tripped on rv. Rather than take a chance I just plugged into 20 amp plug and could only use one ac. Should this have been a 120 single pole breaker 30 amp?
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YES, 30 amp RV is 120 VAC
Your 30 amp house is 240 VAC and can "let the smoke out" of your RV appliances!
ONE hot, one neutral and one ground for an RV 30 amp outlet.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
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08-05-2022, 02:16 PM
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#3
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Senior Member
Join Date: Jul 2014
Posts: 35,417
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You need to pay attention to the outlet you installed.
If you installed a TT 30 amp outlet, it's marked 120 volts and has L, N, and G terminals.
Even if you ran 240 volts to the outlet box, there was no place for L2 to connect.
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08-05-2022, 02:22 PM
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#4
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Senior Member
Join Date: May 2018
Posts: 890
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30 amp plug is 120v. You may have caused lots of damage if you wired it as 240.
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08-05-2022, 02:24 PM
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#5
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Senior Member
Join Date: Nov 2015
Posts: 26,818
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One 30A Circuit Breaker
One Hot
One Neutral
One Ground
NEMA TT-30R receptacle
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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08-05-2022, 02:46 PM
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#6
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Senior Member
Join Date: Aug 2008
Location: Georgia
Posts: 8,638
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Hooking to shore power
Quote:
Originally Posted by Jj 2004 Rv
I wanted 30 amp power at home to plug rv into. I used a 240 two pole 30 amp breaker and when I plugged rv into it it tripped house breaker and later found two breakers tripped on rv. Rather than take a chance I just plugged into 20 amp plug and could only use one ac. Should this have been a 120 single pole breaker 30 amp?
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OMG! If you have not fried everything your lucky.
__________________
2007 Fleetwood Revolution LE 40V
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08-05-2022, 02:55 PM
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#7
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Senior Member
Join Date: Nov 2014
Location: Somewhere
Posts: 827
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Yikes!!! The OP wired up like a 240V dryer.
OP, see attached...left side is RV 120V, right side is dryer 240V. If you have no damaged electronics consider yourself very lucky.
You will need a single-pole 30A breaker.
__________________
2019 Fleetwood Discovery LXE 40D
2023 Ford Expedition Limited Stealth Edition Towed
Full-Timers since 2018
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08-06-2022, 06:43 PM
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#8
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Junior Member
Join Date: Mar 2022
Posts: 15
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Shore power
Thanks for help. I used right plug but wired 120 to each leg. Guardian Angel was looking out for me and breaker tripped. No damage. Going to hardware to get right breaker and etc.
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08-06-2022, 07:13 PM
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#9
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Senior Member
Join Date: May 2018
Posts: 890
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Quote:
Originally Posted by Jj 2004 Rv
Thanks for help. I used right plug but wired 120 to each leg. Guardian Angel was looking out for me and breaker tripped. No damage. Going to hardware to get right breaker and etc.
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Glad to hear nothing was damaged, I have heard of cases where an electrician made the same mistake and lots of damage resulted.
One thing to consider is installing an EMS that checks that the wiring is kosher, and all of the voltages and frequencies are safe before connecting. , progressive industries is a popular choice.
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08-06-2022, 08:01 PM
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#10
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Senior Member
Join Date: Jun 2016
Location: SW Louisiana
Posts: 8,938
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Double check everything in the RV, when people do this they almost always fry something, and chances are you have also or else the breaker should not have tripped, that is unless something else is miswired..
__________________
2002 Safari Trek 2830 on P32 Chassis with 8.1L w/ 400 watts solar 420Ah LiFePo4
2017 Jeep Cherokee Overland & 2007 Toyota Yaris TOADs with Even Brake,
Demco Commander tow bar and Blue Ox / Roadmaster base plates
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