Forum Discussion

LinkedXJ's avatar
LinkedXJ
Explorer
Jan 04, 2016

Needing help with electrical plug

I just bought a new trailer..

Its not a camper/TT.. its a car hauler, however... it is wired for 50a service.


My garage is wired for 50a service but with a different plug.

Trailer has a 4 prong plug, looks like this -
https://www.gexpro.com/shopimages/gexpro/P/S/3/PS_3867_IMAGE_ZM.jpg

The outlet in my garage looks like this-
http://ecx.images-amazon.com/images/I/41xgA8DDz2L._SX300_.jpg


Any one of you helpful folks know of the right cord i need to
plug my 4 pronger into to turn it into a 3 pronger?

I have found one... But its over $80. (what the..)

http://www.amazon.com/Conntek-50-Amp-Electric-Vehicle-Adapter/dp/B00STD8SEU


Any and all help is greatly appreciated.


I have bought a 50a to 15a converter to allow me to simply plug in
a everyday extension cord, i have basically the same thing
for our TT.. I would like to take advantage of my garage being wired
with 50a service though.



Thanks
-Sean
  • azrving's avatar
    azrving
    Explorer
    Jan 05, 2016
    I hope you fully understand why Lynnmor said that. This classic rv disaster stuff.
  • WyoTraveler's avatar
    WyoTraveler
    Explorer
    Jan 05, 2016
    Most RV dealers carry the proper RV outlet. Remove that outlet if not used and wire in the RV outlet. RV 50 amp cords are pricey though.
  • enblethen's avatar
    enblethen
    Nomad
    Jan 05, 2016
    You need a standard range receptacle.Range receptacle
    I am guessing that you will not four wires in your existing wiring. You will need to replace what feeds the current receptacle with 6/3 w ground cable.
  • LinkedXJ's avatar
    LinkedXJ
    Explorer
    Jan 05, 2016
    KD4UPL wrote:
    You really don't want to use that 3 prong outlet for your RV. It is a 240v 50A outlet with no neutral. The 3 wires are 2 hots and a ground. For an RV you need a 4 wire connection with a separate neutral and ground.
    There shouldn't be a ready made adapter.
    It is possible to use the ground for the neutral and make it work but it's not advisable at all. It could pose a rather large safety hazard.

    By the way, 50 amp RV outlets are not 50A 120v; they are 50A 240/120v split phase.


    Thats all i needed, Thank ya
  • KD4UPL's avatar
    KD4UPL
    Explorer
    Jan 05, 2016
    You really don't want to use that 3 prong outlet for your RV. It is a 240v 50A outlet with no neutral. The 3 wires are 2 hots and a ground. For an RV you need a 4 wire connection with a separate neutral and ground.
    There shouldn't be a ready made adapter.
    It is possible to use the ground for the neutral and make it work but it's not advisable at all. It could pose a rather large safety hazard.

    By the way, 50 amp RV outlets are not 50A 120v; they are 50A 240/120v split phase.
  • Lynnmor's avatar
    Lynnmor
    Explorer
    Jan 05, 2016
    Don't forget to pick up some marshmallows to roast over your 240 volt fire.
  • wrvond's avatar
    wrvond
    Explorer II
    Jan 04, 2016
    That outlet looks like an air conditioner outlet.
    Go to Lowe's or Home Depot and get an RV50 outlet to replace the one in your garage.
    Verify it is actually 50 amp and 120 volts.

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