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Polyamide over Coated with Polyester-imide Insualted Round Magnet Copper Wire Thermal Class C

Polyamide over coated with Polyester-imide Round Magnet Copper wire is a high-performance electromagnetic wire product, with an insulation layer composed of a composite of Polyesterimide (PEI) and Polyamide-imide (PAI). The composite coating significantly enhances the long-term stability and reliability of the polyimide magnet wire in complex working environments, and ensures electrical insulation performance and mechanical strength at higher temperatures.

polyimide magnet wire

Specification of Polyamide over Coated with Polyester-Imide Insualted Round Magnet Copper Wire Thermal Class C

TypePolyesterModified PolyesterPolyurethanePolyesterimide
Polyamide-imide
Polyamide
CodePEW, QZPEW, QZUEW, QAEIW, QZY
EI/AIW, QZY/XY
AIW, QXY
Thermal ClassClass B, 130°CClass F, 155°CClass F, 155°CClass H, 180°CClass H, 200°CClass L, 220°C
Insulation thicknessGrade 1, 2, 3
StandardIEC 60317, NEMA MW, JIS
CharacteristicsGood heat resistance and mechanical strength.
LOW cost.
High mechanical strength, good elasticity, scratch resistance, adhesion, electrical properties and solvent resistance
Solderability (no need to remove the insulation).
High frequency resistance and dyeability
Good thermal shock resistance and refrigerant resistance.
Excellent chemical resistance, abrasion resistance
More comprehensive performance, with high heat resistance, mechanical properties, refrigerant resistance and chemical resistance
Highest heat class
High heat resistance, good solvent and refrigerant resistance


Feathers of Polyamide over Coated with Polyester-Imide Insualted Round Magnet Copper Wire Thermal Class C

The design of this enameled copper wire aims to meet the stringent requirements of high-end electrical equipment in terms of heat resistance, electrical insulation, and mechanical strength.


1 High Heat Resistance: The composite insulation layer allows the polyimide magnet wire to operate at temperatures up to 200°C or even higher, suitable for H class insulation level requirements and above.

2 Excellent Electrical Insulation Performance:

3 Good Mechanical Strength

4 Chemical Stability and Solvent Resistance

5 Moisture Resistance

Feathers of Polyamide over Coated with Polyester-Imide Insualted Round Magnet Copper Wire Thermal Class C
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