Master cutoff switch
 

I’m looking to install a 4 pole master shutoff switch, who makes a good one from both a quality and price point?
I am running a power master 30/50 amp alternator, and two 525 amp batteries, what do I need for a continuous rating?
Thanks for looking.

Re: Master cutoff switch
 

I had a Moroso 4 pole that worked until it broke. I replaced it with a Flaming River two pole and wired the alternator to the battery side of the switch with 4 gauge welding wire. It disconnects from the electrical system along with the battery positive and I don't get any run-on. The Moroso wasn't cheap. The parts store rotary switch I used for a week was and came apart. The FR is like comparing a weight lifter to an underweight kid.


EDIT: This is something that tech checks 100 percent of the time. Build it solid.

Re: Master cutoff switch
 

Take a look at Cole-Hersee # 75912-BX.:)

Re: Master cutoff switch
 

Taylor 1033 would be one to look at, 4 terminal, high amperage.

Re: Master cutoff switch
 

Thanks guys,
I used a Joe’s 4 pole 250 amp from summit. I ran the batteries through one side and I put a painless cv solenoid in the alt-batt. Line and ran the activation power wire through the other poles. It works perfect, shuts the car down and kills all the live power in the car.
I tried running the alt-batt wire through the switch but I was getting a big voltage drop at the batteries. Just to much wire length, the solenoid solved that problem.