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View Full Version : Discussion vacuum switch wiring advice please

soarluck
Jul 07, 2009, 12:11 PM
hello there guys ,,,like most projects ,,,i just keep getting in deeper
I got my hands of the vacuum switch in my link for my vaccuum bagging but its 4.5 to 24 volt dc sooo I need to know how i can use this switch to run my fridge compressor in my homehade vaccuum pump ..I know I need to step voltage down just for the switch ,,,but how??? thks SL
coulee
Jul 07, 2009, 12:47 PM
hello there guys ,,,like most projects ,,,i just keep getting in deeper
I got my hands of the vacuum switch in my link for my vaccuum bagging but its 4.5 to 24 volt dc sooo I need to know how i can use this switch to run my fridge compressor in my homehade vaccuum pump ..I know I need to step voltage down just for the switch ,,,but how??? thks SL

Let the vacuum switch drive a relay to turn on/off the higher voltage pump. As far a low volt to drive the vacuum switch, use a 12V (or anything in range) wall wart. You could always whip up a quickie AC/DC power supply, schematics are all over the web.

Ted