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    how to determine inline fuse rating

    ok, so im going to be doing the Big 3 as well as pos and neg runs of 0ga to the trunk of my new car. i have 2 questions:

    1. do i need to fuse the alt to battery wire for the big three and if so what size fuse?

    2. how do i determine what size fuse to use for my power wire?

    im goign to be running 0ga to a dristo into the 2 amps, then the 2 amps will run grounds to another distro which will run 0ga to the battery. i kno i fuse the pos wire, but im not sure what size to fuse it with. i will be running a kicker ZX-750 and a Autokek MM 1400.4(new model, 50 amps of fuse i think)

    Matt



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    Re: how to determine inline fuse rating

    Quote Originally Posted by mat3833 View Post
    ok, so im going to be doing the Big 3 as well as pos and neg runs of 0ga to the trunk of my new car. i have 2 questions:

    1. do i need to fuse the alt to battery wire for the big three and if so what size fuse?
    yes. the fuse rating is what the wire is capable of handling
    2. how do i determine what size fuse to use for my power wire?
    again, you are fusing for the wire. so whatever amperage the wire is capable of running at that is the amperage fuse i would get.

    im goign to be running 0ga to a dristo into the 2 amps, then the 2 amps will run grounds to another distro which will run 0ga to the battery. i kno i fuse the pos wire, but im not sure what size to fuse it with. i will be running a kicker ZX-750 and a Autokek MM 1400.4(new model, 50 amps of fuse i think)

    Matt
    answers in red




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    Re: how to determine inline fuse rating

    i thought you fused the amps power wire to what the amp would be drawing+10%. hmm, oh well. so 0ga is rated at 200 amps right?

    Matt



    Star Mountain Nuthugger #5
    12" TC9 in 1.39 cubes @30hz
    Boston Acoustics GT-2300 @4 ohms bridged.

    Quote Originally Posted by double 07 View Post
    Sub cutout got a little skar on it...dad blamed round over bit bearing came flying off.......LOL.......
    Quote Originally Posted by gckless View Post
    A little Skar on it? Was it a B-stock bit?
    Refs:
    bought from Nitefury360, Tallic, SPLaudio X2
    Traded with Marleyskater420

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    Re: how to determine inline fuse rating

    Quote Originally Posted by mat3833 View Post
    i thought you fused the amps power wire to what the amp would be drawing+10%. hmm, oh well. so 0ga is rated at 200 amps right?

    Matt
    nope you fuse for the amperage that the wire will safely allow. so OFC 1/0 is 300a and CCA is 250




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    Quote Originally Posted by audioholic View Post
    Apparently I was called out, or called a goat fucker, or something. I really have no idea. Im just along for the ride at this point.
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    Re: how to determine inline fuse rating

    If its ofc 1/0 its 300a if its cca its 250a yes u fuse for wiring capacity not amp




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    Re: how to determine inline fuse rating

    Quote Originally Posted by sacsking916 View Post
    nope you fuse for the amperage that the wire will safely allow. so OFC 1/0 is 300a and CCA is 250
    ^^^this..beat me to it




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    Re: how to determine inline fuse rating

    hmm, ok. so looks like i need 2 inline fuse holders that accept 0ga.

    Matt



    Star Mountain Nuthugger #5
    12" TC9 in 1.39 cubes @30hz
    Boston Acoustics GT-2300 @4 ohms bridged.

    Quote Originally Posted by double 07 View Post
    Sub cutout got a little skar on it...dad blamed round over bit bearing came flying off.......LOL.......
    Quote Originally Posted by gckless View Post
    A little Skar on it? Was it a B-stock bit?
    Refs:
    bought from Nitefury360, Tallic, SPLaudio X2
    Traded with Marleyskater420

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    Re: how to determine inline fuse rating

    Quote Originally Posted by mat3833 View Post
    hmm, ok. so looks like i need 2 inline fuse holders that accept 0ga.

    Matt
    yup. 1 from alt to battery. 1 from battery to rear. and if you have a rear battery 1 right in front of the rear battery. then 1 to the amp(s)




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    Quote Originally Posted by audioholic View Post
    Apparently I was called out, or called a goat fucker, or something. I really have no idea. Im just along for the ride at this point.
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    King James has nothing on King Sac!

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    Re: how to determine inline fuse rating

    For the power wire going to the amplifiers ive always looked at the total fuse rating on both amps, added them together and added another 10. Haven't blown a fuse ever




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    Re: how to determine inline fuse rating

    wait, so i have to fuse BEFORE the distro block AND after the block before each amp?

    Matt



    Star Mountain Nuthugger #5
    12" TC9 in 1.39 cubes @30hz
    Boston Acoustics GT-2300 @4 ohms bridged.

    Quote Originally Posted by double 07 View Post
    Sub cutout got a little skar on it...dad blamed round over bit bearing came flying off.......LOL.......
    Quote Originally Posted by gckless View Post
    A little Skar on it? Was it a B-stock bit?
    Refs:
    bought from Nitefury360, Tallic, SPLaudio X2
    Traded with Marleyskater420

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    Re: how to determine inline fuse rating

    Quote Originally Posted by mat3833 View Post
    wait, so i have to fuse BEFORE the distro block AND after the block before each amp?

    Matt
    you dont have to run fuses at all, but it would be way more safe to have one upfront at the battery, think of how long of a run it is from the front battery to the back at the distro block. If anything happened in that run before the distro block like the wire was cut it would short to ground and there would be no fuse to blow and stop it and your car could burn to the ground... all hypothetical but, its possible




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    Re: how to determine inline fuse rating

    well i was planning on fusing ~ a foot before the power distro. and not fusing before each amp, 0ga fuse holders get expensive and i already need 1 waterproof one plus another for the power wire.

    Matt



    Star Mountain Nuthugger #5
    12" TC9 in 1.39 cubes @30hz
    Boston Acoustics GT-2300 @4 ohms bridged.

    Quote Originally Posted by double 07 View Post
    Sub cutout got a little skar on it...dad blamed round over bit bearing came flying off.......LOL.......
    Quote Originally Posted by gckless View Post
    A little Skar on it? Was it a B-stock bit?
    Refs:
    bought from Nitefury360, Tallic, SPLaudio X2
    Traded with Marleyskater420

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    Re: how to determine inline fuse rating

    Quote Originally Posted by mat3833 View Post
    well i was planning on fusing ~ a foot before the power distro. and not fusing before each amp, 0ga fuse holders get expensive and i already need 1 waterproof one plus another for the power wire.

    Matt
    youd be safer to fuse after the distro to the amp instead of before. IMO




    TEAM AUDIO TECHNIX
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    Quote Originally Posted by audioholic View Post
    Apparently I was called out, or called a goat fucker, or something. I really have no idea. Im just along for the ride at this point.
    Quote Originally Posted by CRXBMPN View Post
    King James has nothing on King Sac!

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    Re: how to determine inline fuse rating

    well ****, now i need 5 inline fuses. 1 for the Big 3, 1 in the engine bay for the power wire, one just before the distro, and 1 for each amp. god you guys make me spend money! lol, need 3 0GA and 2 4GA. anyone have a suggestion for a good quality inline fuse? id prefer them all to be weatherproof and secure.

    Matt



    Star Mountain Nuthugger #5
    12" TC9 in 1.39 cubes @30hz
    Boston Acoustics GT-2300 @4 ohms bridged.

    Quote Originally Posted by double 07 View Post
    Sub cutout got a little skar on it...dad blamed round over bit bearing came flying off.......LOL.......
    Quote Originally Posted by gckless View Post
    A little Skar on it? Was it a B-stock bit?
    Refs:
    bought from Nitefury360, Tallic, SPLaudio X2
    Traded with Marleyskater420

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    Re: how to determine inline fuse rating

    Quote Originally Posted by mat3833 View Post
    well ****, now i need 5 inline fuses. 1 for the Big 3, 1 in the engine bay for the power wire, one just before the distro, and 1 for each amp. god you guys make me spend money! lol, need 3 0GA and 2 4GA. anyone have a suggestion for a good quality inline fuse? id prefer them all to be weatherproof and secure.

    Matt
    like i said, if it was me i would do after the distro in between to the amps.


    so you should have
    alt to battery
    battery to distro
    distro to amp 1
    distro to amp 2




    TEAM AUDIO TECHNIX
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    Sold to: imtjnotu; ace_800; omegabunny crazykenkid Bought from: El_weenie; fasfocus00; retroaudioinc; f1mclarenagr; jason19; tone415; twizted859; noph33rracing; tony30cl; carlosg_313 Traded with: Micah_Jones; MikeOfTulsa
    Quote Originally Posted by audioholic View Post
    Apparently I was called out, or called a goat fucker, or something. I really have no idea. Im just along for the ride at this point.
    Quote Originally Posted by CRXBMPN View Post
    King James has nothing on King Sac!

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