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

  1. #21
    Variable Bitrate Pokey's Avatar
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    It surprise me when i first saw it. But if you think about it, teflon coating is tough, and even if it found someway of wearing thru, you have fuses, and that fuse will go long before that 6 gauge even gets warm.

    And just in case .... I'll keep my insurance up to date!

  2. #22
    Maximum Bitrate fantomas's Avatar
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    i'd say do it right the first time and you'll have less problems down the road. (no pun intended)
    rebuilding carpc... kinda..

  3. #23
    hud
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    UPDATE #2 can I wire a switch into the power wire of the amp kit?
    ======
    ok, so yesterday, i bought a 12VDC SPST switch (rated to 30 amps), for the purpose of mounting on/in my dash (where I currently have a blank plate). the idea is, I will essentially hide the inverter somewhere (out of sight&reach), and leave the switch on the inverter always on, and just control the power via this other switch that I purchased My question is, do I just wire it right into the power wire of the amp kit? The back of this switch that I bought has 3 terminals: power, load, and ground. Can someone explain easily how this would need to be wired???

  4. #24
    Low Bitrate crosseye's Avatar
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    [QUOTE=hudThe back of this switch that I bought has 3 terminals: power, load, and ground. Can someone explain easily how this would need to be wired???[/QUOTE]

    This is probably not the best switch to use. I would use a switch to just break the circuit (i.e. two terminals). The ground terminal is unnessesary because you dont need to send 0 volts to the inverter to turn it off, you just need to break the circuit.

    Do this:

    DISCONNECT THE POSITIVE WIRE FROM THE BATTERY. Then cut it where you want your switch located. Solder one end to one terminal, solder the other end to the other terminal. Then COVER the back with rubber, electrical tape, or plastic so that it cannot potentially short to a the chassis or other ground point.

  5. #25
    hud
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    Quote Originally Posted by crosseye
    This is probably not the best switch to use. I would use a switch to just break the circuit (i.e. two terminals). The ground terminal is unnessesary because you dont need to send 0 volts to the inverter to turn it off, you just need to break the circuit.

    Do this:

    DISCONNECT THE POSITIVE WIRE FROM THE BATTERY. Then cut it where you want your switch located. Solder one end to one terminal, solder the other end to the other terminal. Then COVER the back with rubber, electrical tape, or plastic so that it cannot potentially short to a the chassis or other ground point.
    so are you saying that i CAN use this switch, just use the 'power' and 'load' terminals as the two terminals (just connect nothing to the ground terminal)? Or are you saying i've gotta get a different switch?

  6. #26
    Low Bitrate crosseye's Avatar
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    Quote Originally Posted by hud
    so are you saying that i CAN use this switch, just use the 'power' and 'load' terminals as the two terminals (just connect nothing to the ground terminal)? Or are you saying i've gotta get a different switch?
    Try a test circuit like this to make sure:



    Use a small fan, lamp, LED, etc for the load to test out the switch.

    Or you can use a multimeter to check resistance (ohms) across the Power and Load terminals when the switch is on. If the resistance is really low (less than a few ohms) then you're good to go.

  7. #27
    Variable Bitrate Superduck's Avatar
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    I assume this is a lighted switch? Do you want to use the lighted portion of it? That should be what the ground is for. Non-lighted SPST switches will only have two terminals.

    If you don't care about the light, then just wire it like a regular switch, ignoring the ground. I find it's nice to have the light, so there's no guessing if it's on or not.


    Kris

  8. #28
    hud
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    Quote Originally Posted by Superduck
    I assume this is a lighted switch? Do you want to use the lighted portion of it? That should be what the ground is for. Non-lighted SPST switches will only have two terminals.

    If you don't care about the light, then just wire it like a regular switch, ignoring the ground. I find it's nice to have the light, so there's no guessing if it's on or not.


    Kris
    yes, it is a lighted switch. yeah, i'd like to use the lighted portion of it, because yes, that would be nice to be able to see if it's on or not.

  9. #29
    Low Bitrate crosseye's Avatar
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    Just for some general information: If the ground terminal is connected, in the off state the switch will move the potential (the voltage) across your load (the inverter) to 0V. Otherwise, the circuit is just broken.

  10. #30
    hud
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    so, if I decide to use the lighted feature, wiring up the power and load terminals are identical (to if I were not using the ground), it's just that additionally, I just need a ground wire going from the ground terminal of the switch, to presumably the same ground point that I'll be running the inverter's ground cable to? Or no, is that no good?

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