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How To Distinguish The Coil Is Copper Core Or Aluminum Core?

- May 25, 2018 -

How to distinguish the coil is copper core or aluminum core?


When you buy a electric motor, how to distinguish the coil is copper core or aluminum core? You can know it according to the methods as below:


  1. Check the motor nameplate and catalog, an additional "L" or "A" will be added on the model.

  2. Check the weight and size, the weight and size for aluminum core is a little bigger than that for cooper core.

  3. Cut the coil to check, if white color, it is aluminum core.

  4. Test the coil resistance, the bigger one is aluminum core coil.


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