A magnet wire is a wire of a small cross section which is covered with a thin layer of insulation. Magnet wires are used extensively to construct the windings in motors, small transformers, inductors, etc. Magnet wires are made of copper which is electrolytically refined or aluminium.
The small cross section of the magnet wire enables close winding in small spaces. Magnet wires are usually made of aluminium, zinc, copper, etc. They are provided with an insulating films made of polymers. Different types of polymers are chosen for insulation based on the operating temperature.
Magnet Wires are designed in both AWG and metric sizes.