Enamelled wire refers to a metallic conductor coated with insulating varnish, used for winding electromagnetic coils, also known as magnetic wire. It is a key raw material for the electromagnetic windings of electrical appliances, motors, home appliances, telecommunications, and electronic instruments. Since joining the WTO, with the rapid development of industrial electrical appliances, home appliances, telecommunications, and electronic products, the market and application fields for enamelled wire have expanded significantly.

Enamelled Wire - Insulation Grades: What are the different insulation grades for enamelled wire, and what materials do they represent?

Insulated wire for electric motors (including: B and F grades commonly used)

Aldehyde varnished copper wire; E grade

Polyester Enamelled Wire: Grade B

Modified Polyester Enamelled Wire: F Grade

Modified Polyester Epoxy Enamelled Wire: H Class

5. Amide-imide coated wire: Grade C

Different insulation grades represent different insulation materials for the motor, and different heat resistance performance means different allowable temperature rises. For example: B-grade allows 80K; F-grade allows 100K; H-grade allows 125K (all measured by the resistance method). Currently, the A.E grade is basically phased out and no longer used.