0.71mm -2.5mm Dual Coated Enameled Copper Wire
The 0.71mm-2.5mm dual coated enameled copper wire is a precision wire that uses high-purity electrolytic copper as the base material and is coated with a double layer of special-purpose insulating enamel film on its outer surface. With a wire diameter ranging from 0.71mm to 2.5mm, it is suitable for meeting the needs of small and medium-sized electromagnetic components. The double-coating design enhances insulation reliability and provides excellent voltage resistance and breakdown resistance. Meanwhile, the enamel film is wear-resistant and anti-aging, enabling it to withstand processing stresses such as coil winding.
Double-Coating Insulation System: Analysis of PEI/PAI Structure
This high-performance enameled wire adopts a polyetherimide/polyamide-imide (PEI/PAI) double-coating insulation system. In accordance with the international standard IEC 60317-13, it is designated as a Class 200 (Class H) insulated wire. This combination addresses the complex challenges in modern motor windings through the functional complementarity of the two materials.
| Insulation Layer | Material Name | Core Advantages | Technical Indicators / Performance |
| Base Coat | Polyetherimide (PEI) | Basic Insulation & Thermal Stability | Provides good heat resistance, serving as the foundation for achieving Class 200;Ensures excellent adhesion to copper wires;Mainly undertakes the basic dielectric strength. |
| Top Coat | Polyamide-Imide (PAI) | Mechanical Protection & Lubricity | Extraordinary wear resistance to resist mechanical damage;Excellent lubricity with low static friction coefficient, improving insertion performance;Good refrigerant resistance. |
| Dual-Layer Structure | Polyetherimide/Polyamide-Imide (PEI/PAI) | Class H Heat Resistance, Resistance to Processing Impact & Inverter Impact | Final thermal class: Class 200 (Class H);Excellent wear resistance of outer-layer PAI + outstanding adhesion of inner-layer PEI, which can resist mechanical stress degradation during high-speed wire winding;High residual breakdown voltage to ensure electrical safety during long-term use;Excellent corona resistance can be achieved by optimizing material purity / interface bonding, suitable for medium and high-voltage inverter scenarios. |
Application of Dual Coated Enameled Copper Wire
Double coated magnet copper wire meets the needs of small and medium-sized electromagnetic components.
| Typical Equipment | Wire Diameter Focus | Core Advantages |
| High-Speed Spindle Motor of CNC Machine Tools, Drive Motor of Precision Machining Centers | 0.8mm-2.0mm | Class 200 temperature resistance; resistance to 1000V+ high-frequency pulses; suitable for high power density; resistant to wire winding wear |
| High-Frequency Inductor for Auxiliary Power Supply of Subways/High-Speed Railways | 0.71mm-1.5mm | Reduces high-frequency skin effect;low dielectric loss; vibration resistance and moisture resistance; suitable for rail transit |
| Fan of Commercial Ovens, Drive Motor of Disinfection Cabinets | 0.71mm-1.2mm | Class 200 high-temperature resistance (160-180℃); resistance to oil fumes and grease; short-circuit prevention |
| Gradient Coil of Nuclear Magnetic Resonance (NMR), Coil of High-Frequency Surgical Equipment | 0.8mm-1.8mm | Low volatility, compliant with medical standards; stable high-frequency dielectric property; ensures energy transmission accuracy |
LP Industry’s Main Specifications for 0.71mm -2.5mm Dual Coated Enameled Copper Wire
| Name | Dual Coated Enameled Copper Wire |
| Conductor | Copper |
| Dimension | 0.71mm一2.5mm |
| Thermal Class | 200°C(Class H) |
| Standard | IEC,NEMA,GB,JIS |
| Certificate | UL |
| Packing | PT-4-PT-200 or ply-wood-spool |
Why Choose Us?
1.We use high-quality raw materials: high-purity conductive metals + high-quality insulating varnish = high-quality Enameled Wires.
2.For each batch of products, we conduct sampling inspections. We perform tests including structural dimension testing, mechanical property testing, breakdown voltage testing, and direct solderability testing, and ensure the test results comply with the standards of IEC and GB .
3.Our products have obtained certifications such as UL, CE, REACH , and RoHS , so you can purchase with complete confidence.
4.Our team has over 10 years of export experience, enabling us to deliver the goods to you as soon as possible without delaying your production.
Contact us to obtain the quotation for 0.71mm -2.5mm Dual Coated Enameled Copper Wire!