Pdx external fuse size - Car Audio | DiyMobileAudio.com | Car Stereo Forum

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Old 1 Week Ago   #1
 
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Default Pdx external fuse size

So I'm running the power cable from the front battery to a fused distrobution block in the trunk, then to a trio of pdx amps.
2x f6
1x m12

The f6 is internally fused at 2x30 amp fuses and 4x25 for the m12. My question is, what size fuses should I use in the distro block for each amp?
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Old 1 Week Ago   #2
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Default Re: Pdx external fuse size

Fuse for the wire, not the amp. What AWG goes to the amps, and how long are those runs?
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Originally Posted by gijoe View Post
Fuse for the wire, not the amp. What AWG goes to the amps, and how long are those runs?
I have a 13ft run of 1/0 going to the distro block in the trunk, then I'll be using 4ga to the amps.
Those runs will be 6-12 inches
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Default Re: Pdx external fuse size

Since they're D class amps, their efficiency is probably around 80%.

I was just researching this same question myself. There's a good tutorial put out by one of the guys on YouTube explaining how to factor the size of fuses.

Here's the link:

https://youtu.be/0H005TcKHKo

Should help!

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Default Re: Pdx external fuse size

Check this wire page as it talks about the fuse by wire gauge.

WIRE

Here’s more than you want to know about fuses.

FUSES

Last edited by dgage; 1 Week Ago at 08:28 AM..
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Default

Thanks, this is all great info
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