Fuse question?

[Jacobman 10+ year member]

Are these fuse sizes good, 1 guage from battery to distro fused with a 350 right after battery. The 1 guage will go to a distro that will go to 2 4guage wires, those are each a 150amp fuse, is this all good?

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[Jacobman 10+ year member]

The highest fuse they have a knukoncepts for the ANL fuse holder is 300, so a 300amp fuse right after the battery for the 1 guage.

 

[danp129 10+ year member]

Gauge   | Max Fuse
00 awg  / 400 amps 
0  awg  / 325 amps 
1  awg  / 250 amps 
2  awg  / 200 amps 
4  awg  / 125 amps 
6  awg  / 80 amps 
8  awg  / 50 amps

So 250 amp for your 1 awg run and 125 amp for both of your 4 awg

click Fuses from the right nav on this page: http://www.bcae1.com/

 

[Jacobman 10+ year member]

Would it be bad if i ordered the 300 and 150? Can it hurt anything, and if the wire grounds out will the fuses still blow?

 

[kross 10+ year member]

Is it really 1-gauge, or 1/0 gauge? They are not the same. 1/0 is listed as 0-gauge on that chart. 2/0 is also known as 00, etc.

 

[Jacobman 10+ year member]

1/0, i just wanna know if those fuses will work, especially the ones at the distro.

 

[kross 10+ year member]

The 300-amp for the 1/0 is fine. 150 for 4-gauge is too big. 100-125 would be better. If the fuse is too big, it won't blow when something bad happens.

 

[danp129 10+ year member]

Good catch kross

 

[djfillz1213]

It seems to me that you guys arent really giving him the best advise. As an electrician .. I always size these things backward .. from the amp to the branch to the trunk line. You know? Just cuz he has 1/0 and #6 wiring doesnt mean that the fuse sizes are correct for his draw. The fuse sizes should be depending on the amps .. not the wire size ... You want to protect the amps, not the wire.

 

[ThatChevyGuy 5,000+ posts]

yes, but as in MY case, the wire can heat up with a fuse larger than it can handle, and catch fire //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[kross 10+ year member]

It seems to me that you guys arent really giving him the best advise. As an electrician .. I always size these things backward .. from the amp to the branch to the trunk line. You know? Just cuz he has 1/0 and #6 wiring doesnt mean that the fuse sizes are correct for his draw. The fuse sizes should be depending on the amps .. not the wire size ... You want to protect the amps, not the wire.

That is incorrect. The fuse is to protect the wire in case it shorts to the chassis, to keep from starting a fire.

The fuses in the amp are there to protect the amp.

 

[n2audio 5,000+ posts]

I'd run 150 @ batt, 100 sub, 50 comp

 

[Jacobman 10+ year member]

Oh my im so confused as what to run, everybody is saying something different and i dont want to ruin my gear.

 

[synikalt 10+ year member]

just go by the guide

 

[casper97ta 10+ year member]

I'd run 150 @ batt, 100 sub, 50 comp

150amp fuse for 1/0g wire? no way.//content.invisioncic.com/y282845/emoticons/*******.gif.a649d21efc0d1fd4890a6428166586c1.gif

yes, Kross is correct. You fuse according to the wire size. The 300amp fuse is the right fuse for 1/0g. I would use 100a for the 4g's. I was actually using 80a on the 4g I was using in a previous car. Use these fuses and you'll be fine. no worries. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif