question about Fuse/power wire

[vandiar2 10+ year member]

go to the fuse section and read up!

http://bcae1.com/

 

[wasted ink 10+ year member]

go to the fuse section and read up! http://bcae1.com/

Are you talking to me?

 

[goodguy8705 10+ year member]

In my opinion, 1/0 should go with a fuse with a rating between 150 and 250 depending on what's on the other end and what kind of wire it is.

 

[smoka 10+ year member]

Wasted Ink is correct. First you protect the equipment, then you protect the wire. Its always safer to use a smaller fuse when you can.

The current ratings listed for power wire are most likely the MAX load capacity that the wire can handle. But you want to use a fuse that matches your MAX load potential of the equipment and not the wire (unless equipment fuse > wire capacity then you need bigger wire).

For example I have 2 amps, 1 with 3x40A (120A total) fuses and 1 with 2x30A (60A total) fuses. So at the distro block I have a 120A and 60A fuses for my 4ga wire which is a short run to the amps. Then at the 1/0 fuse at the batt I need to have at least 1 180A fuse. Closest I could get is 200A so that is what I use. 200A is lower than the wire MAX capacity so the wire is protected as well as the equipment.

This is not just for car audio, its for electricity/electronics in general.

 

[goodguy8705 10+ year member]

Fusing the wire for the amps is really only necessary if the amps themselves don't have fuses. Not saying it's a bad idea, because it isn't, I'm just saying it's not a necessity.

NEVER fuse a wire higher than it's rating and ALWAYS fuse a wire.

 

[wasted ink 10+ year member]

Fusing the wire for the amps is really only necessary if the amps themselves don't have fuses. Not saying it's a bad idea, because it's isn't, I'm just saying it's not a necessity.

How do you figure? The in-line fuse is preventing the wire from heating up and igniting your car, not preventing your amp to blow.

NO MATTER WHAT, ALWAYS fuse power wire.

 

[DonH 5,000+ posts]

How do you figure? The in-line fuse is preventing the wire from heating up and igniting your car, not preventing your amp to blow.
NO MATTER WHAT, ALWAYS fuse power wire.

i can second this!!!

also what size fuse you think rockford 4awg can handle im thinking 130 tops??

 

[skmfkr 5,000+ posts]

wait, I know I'm thread jacking but...
my friend got a Kicker amp install kit and it comes with a 300 amp fuse....

we are using 1/0 awg but only for about 1000-1100 rms watts (hifonics 1606D @ 2 ohms)

fuse useless??

no your fine 1/0 wire is rated for 300a. but i would probly run like a 150-200a with that amp

 

[jco1385 5,000+ posts]

how did i miss this one?

 

[loopkiller 10+ year member]

how did i miss this one?

Too much drinkie drinkie //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

http://i412.photobucket.com/albums/pp205/loopkiller/jcos-***-joose-pom.gif

 

[jco1385 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[goodguy8705 10+ year member]

How do you figure? The in-line fuse is preventing the wire from heating up and igniting your car, not preventing your amp to blow.
NO MATTER WHAT, ALWAYS fuse power wire.

I'm not saying fuse higher than the wire can handle. You are misunderstanding what I'm saying. I wasn't replying to the OP.

What I said was, you can fuse for the amps, meaning use a smaller fuse on the wire than it's rating (ex: 150 instead of 200 or 250 or 300). That still protects the wire as well as the fuses at the amp.

How does that risk a fire?

 

[loopkiller 10+ year member]

Fusing the wire for the amps is really only necessary if the amps themselves don't have fuses. Not saying it's a bad idea, because it isn't, I'm just saying it's not a necessity.
NEVER fuse a wire higher than it's rating.

How do you figure? The in-line fuse is preventing the wire from heating up and igniting your car, not preventing your amp to blow.
NO MATTER WHAT, ALWAYS fuse power wire.

I'm not saying fuse higher than the wire can handle. You are misunderstanding what I'm saying. I wasn't replying to the OP.
What I said was, you can fuse for the amps, meaning use a smaller fuse on the wire than it's rating (ex: 150 instead of 200 or 250 or 300). That still protects the wire as well as the fuses at the amp.

How does that risk a fire?

If you go back and read your post that he replied to, you could read it as you saying you do not need an inline fuse because amps already have internal fuses. I understood your point, but he obviously read it differently.

 

[goodguy8705 10+ year member]

My mistake. I edited the post to clear everything up.

 

[vandiar2 10+ year member]

Too much drinkie drinkie //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif
http://i412.photobucket.com/albums/pp205/loopkiller/jcos-***-joose-pom.gif

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