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Thread: Correct wire gauge for inverter?

  1. #1
    Low Bitrate silveralt's Avatar
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    Question Correct wire gauge for inverter?

    I'm extending the outlets on my inverter from my trunk to my console. My inverter is a 400/800 watt. I bought some 12 guage wire to use. I figured I should ask first if this is the correct thing to use for the power wire. Thanx for the help.

  2. #2
    Maximum Bitrate Caelric's Avatar
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    No, you definitely want thicker gauge wire. I would probably go with 4 or 2 gauge for that, although you might get away with 8 gauge.

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    FLAC SnyperBob's Avatar
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    Have you thought about just using extension cables?
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  4. #4
    Low Bitrate silveralt's Avatar
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    I guess I will just go for the extension chord. I used 8 ga for the power and ground on the inverter.

  5. #5
    Variable Bitrate
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    8 gauge is fine for the battery to the inverter..you actually could have used 10 gauge if you really wanted.

    12 gauge is fine from the inverter, to where ever you want to relocate the outlets.
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  6. #6
    Low Bitrate silveralt's Avatar
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    Should I put an inline fuse in the extension chord? I planned on doing that when I ran the wires from inverter to outlets in the front of my car.

  7. #7
    Variable Bitrate
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    Quote Originally Posted by silveralt
    Should I put an inline fuse in the extension chord? I planned on doing that when I ran the wires from inverter to outlets in the front of my car.

    It wont hurt. Chances are your inverter has some kind of built in protection, but it's always a good idea to be extra safe.

    Look in your manual to see what the current rating is on the AC output side of the inverter, it shouldn't exceed 15 - 20 amps, so chances are you'll need a 15 amp fuse.
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  8. #8
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    Quote Originally Posted by Rocky388
    It wont hurt. Chances are your inverter has some kind of built in protection, but it's always a good idea to be extra safe.
    Are you kidding?

    YES, PUT A FUSE IN LINE CLOSE TO THE BATTERY. Fuses aren't put in the power wire to protect your equipment, they're put there to keep you from diaf.
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  9. #9
    Maximum Bitrate mushin's Avatar
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    Quote Originally Posted by SMOKINV8
    Are you kidding?

    YES, PUT A FUSE IN LINE CLOSE TO THE BATTERY. Fuses aren't put in the power wire to protect your equipment, they're put there to keep you from diaf.
    I think they're talking about the wire from the inverter to the equipment, not from the batt to the inverter.

  10. #10
    Variable Bitrate gameboy's Avatar
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    Quote Originally Posted by mushin
    I think they're talking about the wire from the inverter to the equipment, not from the batt to the inverter.
    lets hope so, otherwise he's in for a carpet fire at the least.
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