Polyamide Imide Enameled Round Copper Wire Class 220 Thermal Resistance JIS NEMA Standards
Overview
2AIW is polyamide-imide enameled round copper wire with Class 220 high thermal resistance, manufactured in line with JIS and NEMA standards. Its AIW insulation delivers reinforced mechanical strength, excellent film adhesion and superior resistance to thermal shock, softening breakdown, solvents and refrigerants. The wire passes strict online full inspection to eliminate pinholes and insulation defects, maintaining stable dielectric performance under continuous high-temperature overload conditions. It features high scratch resistance to fit harsh high-speed automatic winding processes, with a wide standard conductor diameter range and controllable insulated outer diameter within standard tolerance limits. It can be twisted into multi-strand litz wire. Widely adopted for automotive motors, power tools, refrigeration compressors, high-temperature transformers and industrial control coils, it meets demanding thermal and reliability requirements of heavy-load electromagnetic devices.
Specification
| Parameter | Figure |
| Model NO. | 2AIW/220 |
| Outer Diameter (mm) | 0.2480~0.2520 |
| Insulated OD Control Range (mm) | 0.2720~0.2780 |
| Insulated OD Acceptance Range (mm) | 0.2720~0.2780 |
| DC Resistance (Ω/m20℃) | 0.337~0.358 |
| Elongation (≥%) | 25 |
| Temperature Class (℃) | 220 |
Product Features
Class 220 Ultra-high Thermal Performance
Superior softening breakdown and thermal shock resistance. The insulation stays intact under long-time high-temperature overload to avoid short circuits.
Excellent Mechanical & Chemical Stability
Strong film adhesion and high scratch resistance for high-speed winding. Resistant to refrigerants, solvents and chemical corrosion.
Reliable Consistent Insulation
Full online high-voltage testing eliminates pinholes. Insulated outer diameter is strictly controlled within standard tolerance for uniform coil winding.
Customizable & Versatile Structure
Multiple conductor sizes available; optional self-bond topcoat. Can be twisted into Litz wire to fit various high-temperature electromagnetic devices.
Applications
Compressor Motors for Air Conditioners and Refrigerators, Drive Motors and Auxiliary Electromagnetic Coils, High-temperature Transformers, Servo Motors, Motors Requiring Strong Chemical and Heat Resistance
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