View Single Post
Old 11-08-2011, 05:42 PM   #5177 (permalink)
EcoModding Apprentice
Join Date: Nov 2010
Location: Annapolis
Posts: 159
Thanks: 0
Thanked 32 Times in 27 Posts
I should have suggested a specific solution.

A simple bi-metallic switch can easily handle the current for a few 12VDC fans. Something like a series 36T Therm-O-Disc, which handles up to 10 amps, would do nicely.

Most are built in large batches for a specific product, but they are easy to find as surplus parts from a production run. There are some on FleaBay right now, 45C N/O (i.e. they close when the temperature gets hotter than 45C) priced at 2 for $2.
  Reply With Quote