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1 F Capacitor Fuse,how many amps ?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=942
Printed Date: August 25, 2025 at 1:36 PM


Topic: 1 F Capacitor Fuse,how many amps ?

Posted By: Dan M C.
Subject: 1 F Capacitor Fuse,how many amps ?
Date Posted: May 25, 2002 at 11:54 AM

posted_imageI have a 1F Capacitor and the manufacturer (Road Rage) does not list what value the fuse should be,is that because it depends on the amps used ?,i was wandering if just the subwoofer should get the cap boost or share it with my midwoofers as well,the sub amp will delliver 100 W x1 and the midwoofer 50 W x2,now what my confusion is how many amps should i use for the cap alone,ofcourse there will be a main fuse in line for the whole system.

posted_imageRegarding fuses;my components conssist of 4 amps,one requires 40 A and the other three need 30 A and one unit at 3 A (crossover) plus the capacitor mentioned above,what value should my main fuse should be coming from the battery,i thought a 70~80 A would do,'m i wrong ?

Thank you again !




Replies:

Posted By: NyxBass
Date Posted: May 26, 2002 at 6:08 PM
The fuse should be determined by the size and length of the wire, and the size of the wire determined by the load you're pulling. Usually, a cap doesn't need a separate fuse - It is run inline with the power, and the wire gauge doesn't change, so the main fuse on that wire is what protects. Regarding how much power you're goign to be pulling, you didn't give us a value on all of your amplifiers. So instead of calculationg it for you, I'll refer you to here: https://www.eatel.net/~amptech/elecdisc/caraudio.htm   Click on the fuses section just down a little on the right nav bar. That'll get you started.

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/NyxBass



Posted By: Dan M C.
Date Posted: May 26, 2002 at 11:22 PM
posted_imageJust wanna say thank you,and the site you refered me to is indeed great,so NyxBass-thanks.

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