Microwave motor


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Old 02-04-16, 03:36 PM
T
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Microwave motor

My microwave motor is broken and i want to change it. The motor is class E, I found one which is class B. Will it fit? What class stands for?
 
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Old 02-04-16, 03:43 PM
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No make, or model # mentioned.
Motor for what?
 
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Old 02-04-16, 03:46 PM
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Usually, the class refers to temperature rating of the insulation used in the motor windings. Class E is not used anymore, but class B is a little higher than E was. So if the motor is otherwise correct mechanically and electrically, it should be ok.
 
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Old 02-04-16, 04:06 PM
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class B is a little higher than E was.
Wait! Am I reading this wrong? On a chart I found, the lower the letter the less temp rating. Even though the "E" was not listed the "B" rating was rated at less temp than other higher letters. An "E" would be a higher temp rating than the "B" he wants to replace with.



BTW...I agree it's probably not worth repairing.
 
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Old 02-04-16, 04:24 PM
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Here's a chart that shows E...it is 120C. I agree, it makes no sense, which may be why the system was changed.

https://en.wikipedia.org/wiki/Insulation_system
 
 

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