Please Help On Fuse Size..

[sfniner415 10+ year member]

I have 1/0 Gauge wire running from battery to a distro block (4gauge to amps) to Hifonics 1608D and an Alpine MRPF-240 (100x2 RMS) my question is, what size ANL fuse should i have at the battery? Thanks for your help.

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[TurdFergueson2 5,000+ posts]

200

 

[fasfocus00 5,000+ posts]

i have a 300 amp fuse for mine.

 

[TurdFergueson2 5,000+ posts]

i have a 300 amp fuse for mine.

That's how I roll too, but I doubt he pops the 200 or burns up the wire with what he's running.

 

[sfniner415 10+ year member]

from what I was told, I should run the maxium capacity for the smallest wire gauge im running (4 gauge) which would be 125A? The distro block isnt fused. Im confused so any help is appreciated thx

 

[JuicyJeff 10+ year member]

You don't necessarily need a fused distro first off all. B/c the fuse will pop at the battery before it gets to the amps. And with your setup i doubt you will pop a 125 even. 200 Should be fine.