ISO Certified Polyester 220 Grade Copper Enameled Wire refers to insulated copper wire used for winding coils in electrical equipment such as motors, transformers and generators. 

The meanings of the components of the term are as follows:
Copper: Copper is the conductive material used as the core of the wire. It is known for its high conductivity, making it an excellent choice for efficient electrical conductivity.

Enameled Wire: Enameled wire, also known as winding wire or enameled wire, is a type of wire that is coated with a thin insulating coating. This insulation helps prevent short circuits and electrical leakage when the wire is wound into coils.

Polyester: Polyester refers to the insulation used in this particular wire. Polyester is a synthetic polymer known for its good thermal properties as well as its resistance to moisture, oil and most solvents. Polyester insulation helps protect copper wire from environmental factors and ensures proper electrical insulation.

Class 220: Class 220 refers to the thermal class rating of wire insulation. Thermal class ratings categorize the maximum operating temperature that the wire insulation can withstand over a long period of time. In this case, Class 220 means that the polyester insulation is designed to operate reliably at temperatures up to 220°C (428°F).

Class 220 polyester copper enameled wire is typically used in applications that require high temperature resistance and electrical insulation, such as motors and transformers that generate large amounts of heat during operation.


The impact capacity should be at least 20°C higher than the temperature rating of the wire insulation type. 

Enameled copper wire can be used to professionally repair precision motherboards in cell phones, computers, laptops, etc.

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