Enameled wires are classified based on several criteria:

Insulation Material: Common types include polyurethane (PU), polyester, polyamide, and epoxy. Each material has different thermal and mechanical properties.

Temperature Rating: Enameled wires are categorized by their maximum operating temperature, typically ranging from 130°C to 240°C, which indicates their thermal durability.

Wire Gauge: They are classified by the diameter of the wire, usually measured in AWG (American Wire Gauge) or metric sizes.

Coating Thickness: Wires can be classified based on the thickness of the enamel coating, affecting their electrical insulation properties.

Application Type: Specific classifications may include magnet wires (used in motors and transformers), winding wires, and other specialized enameled wires for different industrial applications.