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Old 06-01-2008, 03:10 AM   #2 (permalink)
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getnpsi -

You can get a "normally open" switch and attach it to a relay that you connect to be "normally closed". You attach the button so that when the button is closed, it forces the relay to go open. Not as elegant, but works like a charm and can take the worry out of switches not being able to "take the amps".

Otherwise, if you look on Marine supplies websites that specialize in 12 Volt electronics, you can (eventually) find these switches.

Good electronic switch site :

Switches - The Electronics Club

EDIT: Ha ha, found this 35MM diameter monster :

Momentary mushroom head emergency stop


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