Hi,

I hope that I have posted this in the correct forum ?

Induction motors normally have a duty cycle like S1 or S2 ,
A motor supplier has supplied the following infomation and I am now confused as I do not understand how the same motor can be rated with 2 duty cycles ?

S1 is a long working time, when the motor is running and the temperature rise in within the standard of 80K, the power is keeping 70W, so we called S1 70W.
When the motor is running 30mins and the temperature rise in within the standard of 80K, the power is keeping 90W, so we called S2 30min 90W.

I would very much welcome any advice or good websites I could look at ,

Thanks in advance Aspiespot.

 

I think this webpage may help https://www.kebamerica.com/blog/4-types-of-motor-duty-cycles-every-engineer-should-know/