bigger fuse ok?

[jbizzle 5,000+ posts]

I have a 250amp fuse in the front connected to the battery, and where the fuse is half of the fuse holder melted, and the wire on the end of where the fuse melted, the sleeve of the wire burnt..

My amp has a total number of 4 fuses, rated at 40 each = 160.. is it bad to have that big of a fuse?

I'm also waiting on some money to buy a roll of 50ft knukonceptz 0 gauge, for big3, extra batt in the back..

also, when I run the wire for the batt in the back, can I make like a 2 foot power cable from the batt to the amp in the back?

Click to read more...

 

[jbizzle 5,000+ posts]

Also, is this good for big3 and all the upgrades i'm doing?

http://knukonceptz.com/productDetail.cfm?prodID=KLM0PRL

 

[jonesy 10+ year member]

Im going to guess that you are running a 4awg now?

 

[SethPhillips 5,000+ posts]

you would want at least a 160 amp fuse on ur wire to the amp, now once you do big 3. i would fuse the alt + to batt up front + with at least a 200a fuse

then the run to the back batt at least 200a.

then a 160a fuse from the rear batt to sub amp..

 

[jbizzle 5,000+ posts]

Im going to guess that you are running a 4awg now?

0 gauge

you would want at least a 160 amp fuse on ur wire to the amp, now once you do big 3. i would fuse the alt + to batt up front + with at least a 200a fusethen the run to the back batt at least 200a.

then a 160a fuse from the rear batt to sub amp..

right now I have a 250amp fuse going to the back, but why did it melt? and burn half the wire..

 

[mokedaddy 5,000+ posts]

I have a 250amp fuse in the front connected to the battery, and where the fuse is half of the fuse holder melted, and the wire on the end of where the fuse melted, the sleeve of the wire burnt..
My amp has a total number of 4 fuses, rated at 40 each = 160.. is it bad to have that big of a fuse?

I'm also waiting on some money to buy a roll of 50ft knukonceptz 0 gauge, for big3, extra batt in the back..

also, when I run the wire for the batt in the back, can I make like a 2 foot power cable from the batt to the amp in the back?

I guessing since it melted you have bigger problems. Either a loose connection or a possible short somewhere (most likely around the fuse holder would be my guess.

Or you are just trying to pull too much current through the wire.

 

[jbizzle 5,000+ posts]

I'm guessing too much current? I'm dropping down to around 11 volts, but now I don't even bump hard, could that be a possibility?

 

[ultimate157 5,000+ posts]

What size wire do you have the 250A on?

 

[jbizzle 5,000+ posts]

read above, 0 gauge..

 

[mokedaddy 5,000+ posts]

read above, 0 gauge..

If its zero gauge your problem lies elsewhere. Its either a bad connection on the fuse holder generating heat or the some strands of wire sticking out grounding out or something along those lines is what I would think.

Got any pics of the fuse holder installed?

 

[jbizzle 5,000+ posts]

i'll go take a pic brb

 

[ultimate157 5,000+ posts]

read above, 0 gauge..

Missed that. There is an issue around the fuse holder to cause excess heat exchange. Awaiting pictures.

 

[jbizzle 5,000+ posts]

here are some pics.. i just looked and part of the other end melted..

 

[jbizzle 5,000+ posts]

pictures are huge, anyway to make them "click to enlarge"

 

[jbizzle 5,000+ posts]

ttt