FYI

I found this in the Surplus Center, catalog 283 A, Summer of 2010. It is a mechanical five minute timer. The cost is $3.00 plus shipping. It is on page 25 of the catalog. Believe you can find it at;
https://www.surpluscenter.com/item.a...&item=29-n-013
It seems to use full swing for the five-minute duration. It does not come with a mounting bolt or a ****. It is a little under 2 1/2" wide and about 2" tall, with two screws on the back. I have not used it yet but have checked it and it does work as it should.
No affiliation with this company etc. etc. Mike

 

Is there any reason that these wouldn't work on 12 volt? I just bought one at peterbilt and it was $81.00,so if these work on 12v I'll be ordering a few.

 

I'm setting mine up with a relay. Power from the battery, through reviews, through the timer to pins 85 and 30, pin 86 to ground, pin 87 to fuse number three on the hot side. In some other post I picked up that you put the power into fuse 3. You might doublecheck that. Mike