Please check my diagram, fuse size and wire size.
After searching and reading for a few days. This is where I am at the moment.
I'm trying to determine fuse sizes & wire sizes needed for running my Car PC,
Component Amp and Sub Amp. Please correct me if I wrong here. Thank you in
I'm starting off with running 4 AWG from the battery to Distribution block.
There would be three wires coming out from Distribution block (see diagram).
Here is how I calculate fuse sizes and then the required wires:
* Car PC (M2-ATX) 160W
P = V * I
160W = 12 * I
I = 160/12 = 13.33 -> round it up to 15amp.
* Comp Amp 500W
I = 500/12
= 42.67 -> round it up to 50amp.
* Sub Amp 250W
I = 250/12
= 21.33 -> round it up to 25amp.
From the fuse size, I then use http://www.mp3car.com/vbulletin/car-audio-faq/72195-questions-regarding-wire-size-battery-size-and-alternator-size-see-here.html to figure out what is the best wires for
Car PC with 15amp fuse -> at least 14 AWG
Comp Amp with 50amp fuse -> at least 8 AWG
Sub Amp with 25 fuse -> at least 10 AWG
Any comments would be greatly appreciated. Thank you.