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Battery master switch

DragonflyDH90

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Just wondering on the use of a battery isolation switch instead of a solenoid for battery master contact.
The units I have seen which are normally used on the likes of drag cars, rally cars etc have a rating of 1000A @ 12V for approx 12sec and a continuous current rating of 100A @ 12V.
This could potentially mean there is a slightly longer "hot" section of wire when switched off.


Just thinking out loud, trying to apply the KISS principle and also keep the weight down a little (not that a solenoid weighs a heck of a lot more).


Any thoughts.
 

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