Factory Five Racing Forum banner
1 - 5 of 5 Posts

·
Premium Member
Joined
·
6,142 Posts
Discussion Starter · #1 ·
I was at Habor Freight the other day and notice the red twist pull out key type had a 100 AMP rating.

At Pepboys theirs had a 300 amp rating. Same looking cutoff.

Is 100 AMP ok? How many AMP protection do we need.

ThanX,
 

·
Premium Member
Joined
·
11,853 Posts
Ours is about 1000 amps for short load and 500 sustained. Of course is costs a lot more than the HB one. HTH, Cheers Richard.
 

·
FFCobra Fanatic
Joined
·
12,975 Posts
Consider a hot engines cranking amps could be upwards of 350 amps. You want to use larger then 100 amp cut off since all amprege flows thru the cut off. Go at least 300 amps. since most will handle higher spikes.
 

·
Charter Member
Joined
·
616 Posts
What is the amp rating for the cut off switch that you get from FFR?

Jack
 

·
Premium Member
Joined
·
5,825 Posts
Originally posted by Shuttle Tech:
What is the amp rating for the cut off switch that you get from FFR?
Here you go: (from FFR's online parts catalog)



#12453 Battery Cut-Off Switch
$29




This battery switch is necessary for any serious race car as a safety item and useful on street cars. On street cars they are a cosmetic and practical item. They keep the battery from dying when the car is being stored over long periods of time and look great doing it. It gets installed in the positive cable between the battery and the rest of the car. It is rated for a 50 amp continuous load and a 10 second 1000 amp momentary load. The red key is removable and replaceable for an extra level of security.

Applications

-Any car with a 12V electrical system

I was just looking at this in the catalog today.

Sean
 
1 - 5 of 5 Posts
Top