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Thread: where to buy wire to run from battery to inverter?

  1. #31
    Variable Bitrate Pokey's Avatar
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    I wouldn't run any large amount of current thru a switch, use a relay and then use a switch to turn the relay on and off...dont forget your FUSE!

  2. #32
    Maximum Bitrate fantomas's Avatar
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    Quote Originally Posted by Pokey
    I wouldn't run any large amount of current thru a switch, use a relay and then use a switch to turn the relay on and off...dont forget your FUSE!
    i agree...but the switch is rated for 30 amps...so it really shouldnt be a problem as long as you aren't pulling more than 30 amps (or 30 amps for an extended period)
    rebuilding carpc... kinda..

  3. #33
    hud
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    here's the switch:

    http://www.radioshack.com/search.asp...e=search&SRC=1

    (the first one...item # 275-712)

    so, you're saying typically you don't wire a switch directly in, you instead wire a relay in, and wire the switch to the relay?

  4. #34
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    Quote Originally Posted by hud
    so, you're saying typically you don't wire a switch directly in, you instead wire a relay in, and wire the switch to the relay?
    Yup, that's what relays do best

  5. #35
    Newbie Camryputer's Avatar
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  6. #36
    Mac Car Moderator kandyman676's Avatar
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    k, so that i have this straight, cause I am basically going to be doing the same thing:

    it goes on the positive side from battery to fuse #1 to relay to switch to fuse #2 to the load...and then the load (being the computer) gets grounded?

    or is fuse #2 suppose to go between the relay and the switch?
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  7. #37
    Maximum Bitrate yunusyu's Avatar
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    what is the best gauge to use for the power wire?

  8. #38
    Variable Bitrate Pokey's Avatar
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    Wire it like this, i usally run the largest wire i can get. 6 gauge is best. Anything smaller (12,14, gauge) causes a voltage drop over a distance and you will end up with less voltage at your device. Always get negative from the cars frame or body, and try to switch ground, when practical (horn relay is an example, its best to have a long wire at ground potential), not switch hot.
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