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  1. #1

    Understanding motor frame sizes


    For the motor frame size that I have chosen as per IEC/IS standard, there's a mention of small,medium,large with frame number. My question is what is the difference between small, medium & large? And if we choose one size higher than standard frame what will be the advantage? Is there any relationship with frame size & motor efficiency? I appreciate your kind advice.

  2. #2
    Join Date
    Sep 2018
    Here's a good article on the subject.


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