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    chrispro's Avatar
    chrispro Posts: 2, Reputation: 1
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    #1

    Aug 17, 2011, 03:24 PM
    Wire size
    I would like to know what size wire I need to go 150 ft. It will feed a subpanel in my out building which will have a air compressor 220v 30amp. And 110 lighting.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #2

    Aug 17, 2011, 04:40 PM
    Before we get started I'd like to narrow this down, do you really mean 220 and not 240? Where are you located?
    chrispro's Avatar
    chrispro Posts: 2, Reputation: 1
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    #3

    Aug 18, 2011, 07:40 AM
    The motor tag reads 220V. Location is Tampa Florida.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #4

    Aug 18, 2011, 08:23 AM
    And what voltage do you get when you put your test leads across your hots? I asked about location because its important for us to know what country you are in, voltage varies. I will wait for TK or Stanforty to advise on the exact gauge wire. I rarely run this length wire for 240 since I am not a licensed electrician.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #5

    Aug 18, 2011, 08:52 AM
    Missing some detail, such as horsepower of motor, and wattage or amps of lighting.

    Assuming a total of 50 amp 240 volt load at 150 feet, #6 copper wire or #4 aluminum will be sufficient.
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