Fuse Question

[tooshort_128 10+ year member]

I just bought a Cadence ZRS-10 and realized it needs to be fused externally. Does anyone know the current draw on this amp??

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[n2audio 5,000+ posts]

If I were setting it up it would be 1/0 and 250A.

 

[tooshort_128 10+ year member]

isnt that a bit big? I've got 1/0 gauge kicker hyperflex wire coming off the main Optima Battery with a 300amp anl fuse, then going back to the second battery with another 300amp anl fuse within 6 inches of it, then to my distro block that splits to 2 4 gauge wires, and here is where I need another fuse before the sub amp, correct? I figured I need a fuse here corresponding to the current draw on the amp.

 

[dman4486 5,000+ posts]

isnt that a bit big? I've got 1/0 gauge kicker hyperflex wire coming off the main Optima Battery with a 300amp anl fuse, then going back to the second battery with another 300amp anl fuse within 6 inches of it, then to my distro block that splits to 2 4 gauge wires, and here is where I need another fuse before the sub amp, correct? I figured I need a fuse here corresponding to the current draw on the amp.

yes...i don't know what the draw from that amp is, but the answer is yes

 

[tooshort_128 10+ year member]

I'll end up having 3 fuses in my wiring. Should the second fuse (300amp) be before or after the second battery? or does it matter? The main thing is trying to find out what the fuse for the sub amp should be....

 

[dman4486 5,000+ posts]

I'll end up having 3 fuses in my wiring. Should the second fuse (300amp) be before or after the second battery? or does it matter? The main thing is trying to find out what the fuse for the sub amp should be....

you want a fuse close to the front battery, and then on that same wire close to the rear battery...the idea is to prevent grounding the battery over the long runs of wire

 

[n2audio 5,000+ posts]

assuming it's capable of ~2500w, yes I think 250A is ideal.