circuit breaker?

[powey]

Could I use a battery isolator switch (fia approved) as a circuit breaker for when I move my battery to the boot.

I will be using 4awg and the switch is rated at 100A Continuous and 500A for 5 Seconds.

 

[gaz_5103]

what do u mean a circuit breaker?

 

[Dink]

not even close

by rating it means it can take 100A continuous and not that it will open above 100A

your best bet is to use an ANL Fuse and 0awg

 

[caister]

What would be the poiunt of using a fuse if he wants a cutoff switch?

I assume you mean something like This

 

[powey]

I have been told that 4 awg is enough.

Above, yes thats the type of switch I was thinking so why can I not just use this instead of an inline fuse?