what size breaker should i use?

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Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=123368
Printed Date: May 15, 2025 at 9:58 PM

Topic: what size breaker should i use?

Posted By: splitcityriders
Subject: what size breaker should i use?
Date Posted: September 05, 2010 at 11:37 AM

I am going to be running 2 600watt amps 0ga. Split to 2 4ga. What size breaker should I be using. I will also be running a 1000 watt and a 1600 watt using 0ga split to each on those. What size breaker should I run on that line.

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Replies:

Posted By: DYohn
Date Posted: September 05, 2010 at 4:20 PM

Breakers and/or fuses need to be sized to protect the wire downstream of them. For 0 AWG, max is 350a, for 4 AWG max is 150a. Use any size up to those maximums, and be sure to fuse whenever you split to a smaller gauge. Here's a guide. https://www.the12volt.com/info/recwirsz.asp

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Posted By: i am an idiot
Date Posted: September 05, 2010 at 4:36 PM

Do yourself a favor and use a Fuse. Breakers are nothing but trouble. Amperage rating as stated above.

Posted By: splitcityriders
Date Posted: September 05, 2010 at 10:23 PM

Thanks for the info your help is greatly appreciated.

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