Fuse box

[jasonvaldez1935]

I am doing the wiring to a accessory panel and decided to run power from 2nd battery to a on off switch then from the switch to a fuse box. Fuse box will have all light bars and pods.
Question: I am using #6 wire from battery to switch, do I need to go this big to the fuse box?

 

[Prntckt]

Size your switch and associated wiring for the total anticipated loads connected to the fuse panel.

 

[jasonvaldez1935]

Size your switch and associated wiring for the total anticipated loads connected to the fuse panel.

So all accessories are number 12. Do I go 11 all the way around

 

[Prntckt]

add together the wattage of all simultaneous loads, divide that sum by 12, that will give you the rough current draw. Use that current draw to size your switch and conductors.

 

[BobSmithing]

This article might help you calculate wire size. Blue Sea Wire Size. Link to a chart on wire size based on amperage and distance. The 6 AWG could carry 30A for 20 feet. Good luck!