Relay and Switch Help...

Thread Starter

Dynaman

Joined Jan 17, 2008
60
First time poster...

I was wondering if anybody had any documentation, links, or can tell me why running moderate currents through a switch or relay at high frequencies say 10-15khz vs. 60 hz. shortens the life of the contacts. I am trying to explain the physics, but am having difficulty.

Thanks!
 

scubasteve_911

Joined Dec 27, 2007
1,202
Just a guess, but wouldn't the skin effect have a lot to do with this? Having the current isolated to the perimeter of the conductor and contacts may decrease life.

Steve
 
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