Main Circuit breaker

I've been considering installing a battery cut off switch, and I see you can get a manual reset breaker, that would to that job, as well being a circuit breaker.

What I don't know is what size breaker to use.
Anyone know how to figure this out?

 

Cool,hit the starter,oops reset the breaker.lol Repeat

 

That would be the wrong size breaker.

 

Add the amp draw of everything in the car plus maybe 10 percent more. If I was doing it I would use a temporary fuse. You could change the rating to zero in on the correct size.

 

Depends on what engine you're spinning, this should work for a 6 cylinder. I'd get a 250 amp for a big block V8. Stay away from the ultra cheap Chinese crap unless you like to walk alot.

http://www.amazon.com/Bussmann-Hi-A...0?s=automotive&ie=UTF8&qid=1361423526&sr=1-10