Hi all,

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

advance.

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/showthread.php?t=72195 to figure out what is the best wires for

each fuse.

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.

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

advance.

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/showthread.php?t=72195 to figure out what is the best wires for

each fuse.

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.

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