Print Page | Close Window

Are distribution block fuses needed?

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=81536
Printed Date: May 18, 2025 at 9:13 PM


Topic: Are distribution block fuses needed?

Posted By: rabreedlove
Subject: Are distribution block fuses needed?
Date Posted: August 12, 2006 at 6:13 PM

I'm going to be connecting up a Rockford Fosgate P450.4 (60W RMS x 4 4-ohm) and a Rockford Fosgate P200.2 (200W x 1 4-ohm bridged) amps.  My wiring kit contains a main fuse at the battery and a distribution block, but no fuses at the distribution block.  I've seen several wiring diagrams during my research that show additional fuses at the distribution block.

For this system, do I really need this?

Thanks for the advice.




Replies:

Posted By: haemphyst
Date Posted: August 12, 2006 at 6:25 PM
If you are transitioning to a smaller size wire on the output side of the distro, YES!!! Absolutely!

-------------
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."



Posted By: killer sonata
Date Posted: August 12, 2006 at 6:43 PM
its generally a good idea to use them. It wont hurt anything to use too many. If the run between the battery and the distro block and the destination is fairly short, youd probably be safe not using them. all depends on the equipment and wiring being used too.



Posted By: rabreedlove
Date Posted: August 12, 2006 at 11:33 PM

Yeah, I know that the 8-gauge amp wire downstream of the distribution block might not be able to carry the load of the 100-amp fuse on the 4-gauge wire at the battery terminal.  I just find it very interesting that almost no dual-amp wiring kits come with secondary fuses. 

I work in a power plant.  I may grab a piece of the 8-gauge wire and test it next week to see how much current it carries at 12V before it smokes.  That would be interesting!!!!




Posted By: darthness
Date Posted: August 13, 2006 at 12:27 AM
its worth the extra few bucks for the fuse.

i'm pretty sure $2 is a lot less of deal than what ever it'd take to replace anything that coudl be damaged by fire :P


Print Page | Close Window