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Thread: Wire gauge for 240v outlet?

  1. #1
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    Andre

    Default Wire gauge for 240v outlet?

    I want to ad a regular 240v/15amps outlet in my house and I'm wondering what wire gauge should I use for that.

    thanks

    andre

  2. #2
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    Default Re: Wire gauge for 240v outlet?

    14/3 for a "regular" length of run.
    It ain't the things you don't know that get you in trouble. It's the things you know for sure that just ain't so.

  3. #3
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    Talking Re: Wire gauge for 240v outlet?

    Actually 14/2 will be all you need.

    No need for a neutral wire unless you have a 120/240V combo outlet.

    I guess the real answer to the specific question you asked is:

    14 gauge.

  4. #4
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    Default 15 amp?

    That is a small load for 230 volt circuit.

  5. #5
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    Steve Morris

    Default Re: Wire gauge for 240v outlet?

    14-2 or 14-3 depending on if you need the neutral for a 120 split say for a work lamp

    remember that 15 amp at 220 is roughly equivalent to 30 amp at 110 power wise

    if its a long run, go up to 12 ga
    my shop is a beaver lodge
    steve, sarnia, ont

  6. #6
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    Default Re: Wire gauge for 240v outlet?

    Thanks guys

    Actually the outlet will be located at about 15 feet from the main panel,it's for a portable dust collector that I would sometimes use in that area.No need for a 120v lamp so I guess 14/2 is ok.

    I'm highly tempted here with a sub-question:would it be ok,I mean up to code,if I'd use some 12 guage wire coupled to a 15amps outlet?
    I can be wrong,but I think that this wouldn't work up to code since I would have to match my 12 guage wire with a 20amps breaker but the outlet is rated at 15amps.....sounds a bit confusing no?

    andre

  7. #7
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    J.P.

    Default Re: Wire gauge for 240v outlet?

    Quote Originally Posted by Andre in Quebec View Post
    Thanks guys

    Actually the outlet will be located at about 15 feet from the main panel,it's for a portable dust collector that I would sometimes use in that area.No need for a 120v lamp so I guess 14/2 is ok.

    I'm highly tempted here with a sub-question:would it be ok,I mean up to code,if I'd use some 12 guage wire coupled to a 15amps outlet?
    I can be wrong,but I think that this wouldn't work up to code since I would have to match my 12 guage wire with a 20amps breaker but the outlet is rated at 15amps.....sounds a bit confusing no?

    andre
    Put in a 15 amp breaker. If you decide you need 20 amps in the future, the wire is already there just replace the breaker and the outlet.
    If you use 14/2 with a white and black, be sure to permanently mark the white either black or red to indicate it's hot.
    J.P. Rap Mount Hope Ont.
    Carpe Ductum (Seize The Tape)


    "In this world, you must be oh so smart, or oh so pleasant." Well, for years I was smart. I recommend pleasant. Elwood P. Dowd

  8. #8
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    Todd Robert

    Default Re: Wire gauge for 240v outlet?

    If you have #12 use it and install a 20A breaker and use a T-slot receptacle.
    If you want me to make it i need this new tool first

  9. #9
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    Default Re: Wire gauge for 240v outlet?

    I would run 12 gauge, this way your not limited to 15 amps, if you ever decide to go with a 20 amp breaker.

    Dan

  10. #10
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    Default Re: Wire gauge for 240v outlet?

    Quote Originally Posted by Andre in Quebec View Post
    I'm highly tempted here with a sub-question:would it be ok,I mean up to code,if I'd use some 12 guage wire coupled to a 15amps outlet?
    I can be wrong,but I think that this wouldn't work up to code since I would have to match my 12 guage wire with a 20amps breaker but the outlet is rated at 15amps.....sounds a bit confusing no?

    andre
    Not confusing at all. That's what I have. 15 amp breakers, 15 amp receptacles, 12awg wire between them. Inspected and approved.

    Btw. for this type of work you do need a permit and inspection. The cost will be around $72.

  11. #11
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    Default Re: Wire gauge for 240v outlet?

    Quote Originally Posted by DMartin View Post
    I would run 12 gauge, this way your not limited to 15 amps, if you ever decide to go with a 20 amp breaker.

    Dan
    Me Too. A few feet, you say? Then the cost differential is minimal, so go strong or stay home... Who knows what the future holds but if you go minimal then either minimal can be used or replacement is required and the savings is exausted in the upgrade.

    I never use 14 anymore, except for light fixtures, my son the master electrician fusses at me too much, says you have limited the use of the curcuit, and will pay later. As I have become the ladder holder, anymore, I does what he says. He says "You know your wood, I know my Juice." (Never argue with free labor)
    Last edited by Bill Simpson; 07-27-2010 at 11:45 PM.
    Bill "Hickory" Simpson

  12. #12
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    Andre

    Default Re: Wire gauge for 240v outlet?

    Sub-question very well answered thank you again.
    A 12 gauge wire it will be.

    andre

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