Compressors blow fuses?? help

Edited: 4/10/2007 8:59:18 PM by YourScene



Try what Chris said man, you don't want to start a fire. 10 Gauge wire isn't even rated for 80amps its only rated for 30 according to this chart. 40amp relays don't mean that it's drawing a constant 40amps. I used 8 gauge when I used to have 2 380s. Good luck man hope you get it worked out.

click here wire chart

So are you running a 10ga wire from your battery to BOTH compressors? Not 1 for each? Run 1 10ga to each or run an 8ga to both. It should solve the problem.

Look at the chart above and you can see that 10ga only is rated for 30amps. That's where your restriction is.

listen to robert and marks posts, they make very good sense....

and to beau montgomery, if you visit viairs website, they will give you DETAILED amp draw info in 10 psi increments i believe, for all their compressors..... if you will notice, the amp draw decreases above 100 psi in most situations.....

my dual 480s were ran off the same wiring from my 380s and 30A in line fuse. turned them on and fuse blew after 2 minutes. i then ran the inline 40 A fuse and it worked for a while, but the wiring got real hot. it was only 16 gauge. i then re-wired it with 10 gauge. everything has worked perfect since that.

just to try out a hunch I am going to run individual power to each relay instead of 1 ten guage split to both. That should reduce the resistance i will try the other options that you all gave, thanks for the help, i will let u know how it goes.