battery cutoff question
Thread Starter
Le Mans Master
Joined: Nov 2004
Posts: 7,186
Likes: 45
From: detroit area
battery cutoff question
i bought a battery cutoff for my audio setup for emergency reasons...question is.... it says to splice the ground side but i would rather splice the positive side...my switch is 50amp and i am running two 80amp fuses for the two amps...... i would cook the switch b4 the fuse if i hooked it up on the hott side...... does the ground carry the same amps as the hott...... any suggestions or maybe a link or option for another switch?
thanks
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thanks
b
Thread Starter
Le Mans Master
Joined: Nov 2004
Posts: 7,186
Likes: 45
From: detroit area
i think u might be on to something.... i called up a friend at cartunes and he said to go to a marina store and find some switches there..they are nice and are high amperage..... so, i'll check tomorrow to see if i can pick one up for the audio setup.....
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Le Mans Master
Joined: Apr 2003
Posts: 6,059
Likes: 2
From: Texas
im 
why did you buy a cutoff switch for emergency reasons? you need a main fuse on the power wire for your system fairly close to the battery (most say 18" or less)
if you have a big short in your wire, you can cause alot of damage before you can get out, open the hood and disconnect the battery. if you have a fuse, it will blow pretty much instantly preventing further damage.
why did you buy a cutoff switch for emergency reasons? you need a main fuse on the power wire for your system fairly close to the battery (most say 18" or less) if you have a big short in your wire, you can cause alot of damage before you can get out, open the hood and disconnect the battery. if you have a fuse, it will blow pretty much instantly preventing further damage.
Le Mans Master
Joined: Apr 2003
Posts: 6,059
Likes: 2
From: Texas
Originally Posted by scott_fx
do circuit breakers come in a 160 amp version?
Thread Starter
Le Mans Master
Joined: Nov 2004
Posts: 7,186
Likes: 45
From: detroit area
i have a c3.. the battery is located behind the driver seat.. the cutoff switch for the audio is about 12" from the battery....then from the cutoff it goes to a fuse block with 2 80amp fuses...... i just don't like the fact of not being able to cut the power for the system and a method of killing the system if anything happens...... since the amp rack will be above the battery, it will take a few minutes to get to the battery and disconnect..... i understand the fuse thing but i just wanted another means of safety.... look in my gallery and u will see my amp setup..... they are old pics but u will get an idea..
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Thread Starter
Le Mans Master
Joined: Nov 2004
Posts: 7,186
Likes: 45
From: detroit area
i have been told that the ground is the one to splice...... no ground, nothing to move the current so basically the hott will be dead...... splice the hott, then if anything happens, the power still has a method of trying to find a ground...i.e. wire harnesses, etc.....
so i guess the ground is the one to splice
b
so i guess the ground is the one to splice
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Safety Car
Joined: Apr 2003
Posts: 3,793
Likes: 9
From: VA
Originally Posted by onaqwst
i have been told that the ground is the one to splice...... no ground, nothing to move the current so basically the hott will be dead...... splice the hott, then if anything happens, the power still has a method of trying to find a ground...i.e. wire harnesses, etc.....
so i guess the ground is the one to splice
b
so i guess the ground is the one to splice
b
Thread Starter
Le Mans Master
Joined: Nov 2004
Posts: 7,186
Likes: 45
From: detroit area
since i have alot of wires running under the amp racks and within the storage compartments, i have no quick way of disconnecting anything is something does happen..... it would take about3-4 minutes to get the amps out if i pullem with some force and undo the bolts, etc..... the last thing i want is to have a melt down if something goes wrong..... these cutoffs are just safety precautions
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Melting Slicks
Joined: Sep 2003
Posts: 3,306
Likes: 2
From: Wesley Chapel Fl
I totally agree. First I have never ever seen anything happen that a quick disconnect is going to help you with when it comes to an emergency situation. If the amp is going to fry it is going to happen faster then you can disconnect anything. Obviously you are very concerned...overly concerned....you should make sure you have proper fuse close to the battery and then maybe use a fused distribution block near the amp. This will most likely give you three fuses and more then enough protection. Also a fused distribution block could be used as a quick disconnect since you could pull the fuses.