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Thread: Hot Tub Wiring

  1. #31
    DIY Junior Member aopainter's Avatar
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    I bought 20ft of EMT conduit for the outside. But the wire I cant find online is "#4 SE-R al." And thats 4AWG right? Do I need 4AWG, i thought 6AWG was what I wanted

  2. #32
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by aopainter View Post
    I bought 20ft of EMT conduit for the outside. But the wire I cant find online is "#4 SE-R al." And thats 4AWG right? Do I need 4AWG, i thought 6AWG was what I wanted
    If you are putting in a 60 amp service, then you may need #4.

    You might want to see what your current requirements are, and that will determine the breaker and wires size.

    The length does play into the equation, But code seems to play different, That depends on local codes.

    Maybe your friend could make sure that you can meet your code. He should know the requirements.
    Theory only works perfect in a vacuum.

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  3. #33
    Electrical Contractor/Instructor jwelectric's Avatar
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    #4 American Wire Gauge aluminum Service Entrance four conductor cable is good for 50 amps. It does not need to be installed in a conduit. Lowe’s or Home Depot will cut to length or any electrical supply house.

    Electrical Metallic Tubing is a bad idea to use for the final connection to the hot tub as the chemicals used in the tub will cause it to rust. Non-Metallic Flex is a better idea for the final run of copper THW conductors.

    Take you age and multiply it by 10 and you haven’t come close to the number of these tubs I have installed in my life time so listen to experience.

  4. #34
    Electrical Contractor Jim Port's Avatar
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    The SER cannot be used for the exterior portions to feed the hot tub. The grounding conductor needs to be insulated.

    There is a 6' limit on the flex to feed the tub.
    Last edited by jwelectric; 06-03-2011 at 06:26 PM.

  5. #35
    Jack of all trades DonL's Avatar
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    JW is correct, old farts know some stuff.....
    Just meet your local code... And get it done...
    Last edited by jwelectric; 06-03-2011 at 06:28 PM.
    Theory only works perfect in a vacuum.

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  6. #36
    Electrical Contractor/Instructor jwelectric's Avatar
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    6 feet from the outside of the tub in the 2011 edition

  7. #37
    In the Trades dwindle's Avatar
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    Is it legal to have a 3 conductor feed going outside?
    I was under the impression all outdoor 220 fixtures were 4 conductor only.

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