Wire and fuse size

Main Train Horns
1

ill start by saying that i dont know what kit this is or even if its hornblasters, i bought it from a buddy who took it off a truck he bought, niether him or me know anything about it

i am wondering what size wire i need to run to my comp…i will be coming from a upfitter switch that can supply 30A. the comp shows that it will pull 16A max. i have #16 size wire to use, will this be big enough…i kinda dont think so.

my other question, i will prolly run a wire from my battery to a button in my cab then to the solenoid valve, im sure #16 will work for that but, do i need to fuse that circuit, i would like to but i dont know how many amps the valve pulls.

the valve is almost the exact same as http://www.hornblasters.com/products/details.php?i=1-4-in-chrome-air-valve

any help will be appriciated…thanks

2

I have #14 wire for my compressor. I don’t know how many amps the valve draws but it can’t be that much. And I put everything on a fuse just to be safe.

3

thanks, now that i think of it, im pretty sure the leads out of the comp are #16…

and the upfitter switch is fused already… for the valve, i will prolly buy an inline fuse and put a 5 or 10A fuse in there

4

If the leads out of the comp are 16AWG, use some little bit bigger 14AWG. The smaller and longer the wire is, the more resistive the wire is giving a bigger drop of voltage. Using bigger wire will counter that.

Also, if it says it will take 16amp while running, it WILL need more than 16amp at start-up. I don’t remember how to exactly calculate it, but if you use a 20amp fuse, as close to the battery as possible, you should be ok.