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Thread: Where is your main fuse located?

  1. #1
    Constant Bitrate
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    Where is your main fuse located?

    I have a 4ga wire running into my trunk to power my inverter. The fuse is currently located in the engine bay but there really isnt much room there to mount it properly. Where do you guys have your main fuse located?

  2. #2
    Underachiever ACHIEVER's Avatar
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    You're going to want your main fuse as close to your battery as possible. Even if the mounting options are limited.

  3. #3
    Constant Bitrate CapitaineFritz's Avatar
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    Quote Originally Posted by ACHIEVER
    You're going to want your main fuse as close to your battery as possible. Even if the mounting options are limited.
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    My Village Called 0l33l's Avatar
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    Quote Originally Posted by ACHIEVER
    You're going to want your main fuse as close to your battery as possible. Even if the mounting options are limited.
    Yeh, that's were I'm putting mine. I originally wanted to hook up into my fuses in the engine, but its easier not to do that

  5. #5
    Maximum Bitrate boomintrac's Avatar
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    rule of thumb within 18inches

  6. #6
    Maximum Bitrate
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    Quote Originally Posted by boomintrac
    rule of thumb within 18inches
    that way if there is any break in the insulation after the fuse the fuse will break protecting the remaining electronics that is hooked up to the battery. The main reason for the fuse, other than the instance when a component is shorted out or overdriven, is to protect the wires. If a wire is not fused, in the case of a wire shorting out, the wires will cause an electrical fire.
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  7. #7
    Variable Bitrate SickVette's Avatar
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    pancit almost got it. The fuse on your main power line is not to protect the electronics. It is to protect the automobile. Main power lines are generally large gauge wires. Those cables can supply enough current to cause a fire. If the cable is shorted to ground and there is no fuse the car can and often does go up in flames. Also if the car has two batteries ..one front and one rear...the power line connecting them needs to be fused at both ends.

    The 18" rule of thumb was started by IASCA a few years back. They determined somehow that 18" from the battery is close enough. Personally I install my fuses as close to the battery as possible...often with in a few inches.

    As for mounting...get creative. I use alot of aluminum to make mounts. You can get pieces of 2x2 angle from Home Depot and easily make a mount. That is just one way.

  8. #8
    Constant Bitrate dan__wright's Avatar
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    my fuse is 3" from teh battery, ontop of the fusebox, there should be SOMEWHERE that it can go.
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  9. #9
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    Keep it as close to your battery as you can. If your mounting options are that limited you can get a battery terminal that has a builtin fuse on it.


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