View Single Post
  #79   Report Post  
Posted to sci.electronics.repair,alt.home.repair
Jeff Liebermann Jeff Liebermann is offline
external usenet poster
 
Posts: 4,045
Default Do thermal fuses fail from old age?

On Sun, 25 Mar 2012 20:24:33 -0700 (PDT), bob haller
wrote:

a 15 amp thermal fuse on a high inrush load causes premature failure
of the fuse, not from device malfunction but the repeated high current
rush.

this can and does cause cause the thermal fuse to fail while the
device is fine.

with gasoline so expensive i want to minimize unnecessary calls. they
annoy the customer and waste my time.//

I am ordering some high current thermal fuses in the AM


What is the device? I ask because it might be easier to install a
thermistor inrush current limiter on the input power leads, than a
bigger thermal fuse.

Inrush current limiting devices:
http://www.ametherm.com/inrush-current/
http://www.rtie.com/category-s/48.htm
According to the data sheets they have devices rated from 1 to 36
amps.

--
Jeff Liebermann
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558