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Jim Stewart Jim Stewart is offline
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Default How do I know when contacts in a motor starter are too worn?

Michael A. Terrell wrote:

Jim Stewart wrote:

I'm with Iggy on this one. No time to do the math,
but I have had experience trying to remove a couple
of watts of heat from a small semiconductor footprint.



Sigh. The contacts are a hell of a lot larger than the die in a
semiconductor, which may only be .001 square inch.


Sigh. By footprint I meant a TO-220 package.