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what gauge wire?

Discussion in 'Lighting' started by Dewey7015, Apr 12, 2018.

  1. Apr 12, 2018 at 4:39 PM
    #1
    Dewey7015

    #1
    Dewey7015 [OP] Well-Known Member

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    what gauge wire are you guys running from relay, through firewall, to switch?
     
    Dewey7015, Apr 12, 2018
    #1
  2. Apr 12, 2018 at 6:08 PM
    #2
    crashnburn80

    #2
    crashnburn80 Vehicle Design Engineer

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    A relay needs very little power to activate. If you are running a hot wire from your switch to activate a relay something as small 18-22awg will be fine.
     
    crashnburn80, Apr 12, 2018
    #2
  3. Apr 12, 2018 at 6:53 PM
    #3
    Dewey7015

    #3
    Dewey7015 [OP] Well-Known Member

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    crap...just bought 16g 3 strand...because I have a 3 relay setup under the hood. could I use wire that big, even though I don't need it? or just go back and buy 18?
    thanks for the info
     
    Dewey7015, Apr 12, 2018
    #3
  4. Apr 12, 2018 at 6:54 PM
    #4
    alucas8892

    #4
    alucas8892 Active Member

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    None yet
    I’ve used 16 on a couple things you’ll be fine
     
    alucas8892, Apr 12, 2018
    #4
  5. Apr 12, 2018 at 7:00 PM
    #5
    crashnburn80

    #5
    crashnburn80 Vehicle Design Engineer

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    Nothing wrong with using heavier wire.
     
    crashnburn80, Apr 12, 2018
    #5
  6. Apr 12, 2018 at 8:21 PM
    #6
    Dewey7015

    #6
    Dewey7015 [OP] Well-Known Member

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    thanks guys.. great site. very knowledgeable people here
     
    Dewey7015, Apr 12, 2018
    #6

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