15) How does the Thermal overload protection of the motors works?

[Valera]

I think that ones acts like-> Current of supply of motor flows through bimetal bus of thermal relay. When value of current has reached I-overload, current heates this bimetal bus and spesial lifter break contacts of relay

 

[Eric Nelson]

HERE'S a great PDF that explains how they work (with pictures!)...

beerchug

-Eric

 

[Valera]

Very mach thanks to Eric Nelson for his very useful link. Whith picteres vauu...

 

[CaseyK]

Good Job Eric...

Another Happy Customer.

I think.

have a good one.....casey