08/28/2026
Not all magnet wire is the same, and the differences go well beyond size.
Magnet wire can be made with copper or aluminum conductors and formed into round, square, or shaped profiles. From there, the insulation system is selected based on the demands of the application. That can include Nomex® wrapped constructions and various polymer coatings, each offering different properties and thermal ratings.
Those choices matter when magnet wire becomes part of equipment like transformers and electric motors, where electrical, thermal, and mechanical demands can vary significantly.