Wire questions

[M2fa5]

I have a 0g wire with a 200a fuse. My question is is it safe and or okay to run it with a 450w draw from my amp. I guess I’m buying cheap and putting off buying the 8g wire kit with a 35-50 amp fuse

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[mat3833 10+ year member]

I have a 0g wire with a 200a fuse. My question is is it safe and or okay to run it with a 450w draw from my amp. I guess I’m buying cheap and putting off buying the 8g wire kit with a 35-50 amp fuse

You fuse for the wire, not the amp. If the amp requires an external fuse, you run your 0ga to a distribution block, then run smaller gauge to the amp with the proper fuse in-line on the smaller wire.

Depending on how long your 0ga is and what type, 200a should be safe.

Matt

 

[metalheadjoe 10+ year member]

The numbers and questions make me think you should start with more basic questions. 200a at 12v is over 2,000 watts. 450w at 12v is roughly 37a. 0g wire is a LOT bigger than 8g wire.