Kill switch

cb34

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Oct 31, 2011
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My electronic Cummins is currently wired with a 3 pole ignition switch alone with a start and stop button. I would like to have an emergency kill switch with a lanyard you see on outboard motor boats. What is the best application, source and how are they wired in? thanks.....
 

Brooksie

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Mar 25, 2013
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Cape Cod
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Bruno-Stillman 35
Can't answer your question directly but do you know that there is a switch available, that you wear, or put in your pocket, that allows you to shut down the engine if you fall in...
Saw it at boat show 2 years ago but can't remember the name of it.
 

djmarchand

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Jul 24, 2012
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Atlas Pompano 23 outboard
Post your question on boatdiesel. There are a couple of Cummins gurus who hang out there and can help.

In general the Cummins uses power to run logic, ie the ignition sends power to the solenoid which then enables the injection pump to supply fuel. This is opposite of some others, like Yanmar which uses power to stop.

But all electronic, common rail engines like the QSB are tricky and you have to break the circuit in the right place, otherwise unintended consequences could result.

David
 
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