Which In-Line fuse holder

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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=62702
Printed Date: May 13, 2025 at 7:57 AM

Topic: Which In-Line fuse holder

Posted By: austeek113
Subject: Which In-Line fuse holder
Date Posted: September 14, 2005 at 9:02 PM

I'm running 1/0 power wire from the battery to two amps. One has 120 amps of fuse the other 50 amps of fuse. I'll have a distribution block that will have two 4 gauge wires as the output. My Q:

Should I have 2 inline fuses at the beginning of the 4 gauge wires or will one inline fuse at the battery be okay? Thanks.

Replies:

Posted By: blackmica3
Date Posted: September 14, 2005 at 9:20 PM

In line at the battery

Posted By: Velocity Motors
Date Posted: September 14, 2005 at 9:47 PM

I suggest using a 200 amp breaker type instead of an ANL or glass fuse type. This is just more convenient if the draw is large enough to flip the breaker. All you have to do is flip the breaker and your set. These breaker's are cheap ( about $ 55.00 )

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

Posted By: austeek113
Date Posted: September 14, 2005 at 9:52 PM

Wouldn't 200 amps be to much. I thought my breaker should add up to the ampage of the amps which would be 180 amps (120 +150). Although, the closest under 180 I could find was 150 amps. Any other input? Thanks.

Posted By: austeek113
Date Posted: September 14, 2005 at 10:23 PM

Sorry one more question. Do you think I'm going overboard with 1/0 gauge or would I be fine with 4 gauge? The power wire will probably run over 18 feet and support 1800RMS watts. Thanks!

Posted By: Velocity Motors
Date Posted: September 15, 2005 at 9:37 AM

According to this chart you can go up to 20 feet with 2 gauge @ 1400 watts. Also at 1400 watts your current draw is at 188 amps, that is why I suggested a 200 amp breaker. I would just use 2 gauge because it's rated for 225 amps of current draw.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA

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