Enameled flat copper wire is a high-performance electromagnetic wire consisting of a high-purity copper rectangular conductor with multiple layers of enameled insulation. Processed through precision annealing, multiple coating and high-temperature curing, the wire combines four core characteristics: excellent electrical conductivity, outstanding high temperature resistance, strong mechanical strength and reliable insulation performance. Compared with traditional round enameled wires, its flat cross-section design realizes higher slot fullness and heat dissipation efficiency, making it the preferred choice for high-efficiency electrical equipment.
| Conductor | Copper |
| Dimension | Thickness(a)0.3~10.0mmWidth(b)1.0~22mm |
| Thermal Class (℃) | 120(Class E):180 (Class H):200 (Class C):220 (Class C+): 240(Class HC) |
| nsulation thickness | Single, Heavy |
| Certificate | UL |
| Standard | IEC,NEMA,GB,JIS |
| Packing | 30kg~150kgply-wood spool(250*400/250*500/ 250*600/250*730) |
Key Performance Advantages
High slot fullness: 30%-40% higher than round wire, reducing winding resistance and increasing equipment efficiency by 2%-5%.
High-temperature resistance: stable operation under continuous high-temperature environment without deformation and aging phenomenon.
Mechanical strength: excellent bending performance, scratch resistance and adhesion, suitable for complex winding process.
Chemical resistance: resist refrigerant, Freon erosion and oxidation, prolonging the service life in harsh environments.
Low inductance: 30% lower inductance for fast current changes, suitable for servo motors and high-frequency applications.
Application Scenarios
New Energy Vehicles (NEV): drive motors, generators, battery management systems (BMS) – Utilizing the advantages of high slot fullness and heat dissipation to improve range and motor efficiency.
Transformers: dry-type transformers, oil-immersed transformers, power transformers — reduce energy loss and enhance thermal stability.
High-efficiency motors: industrial motors, servo motors, AC and DC motors — to realize low noise and high power density operation.
Special equipment: traction motors, welding machines, aerospace and defense electronics — withstand extreme temperatures and mechanical stresses
Why choose enameled flat copper wire?
Space-saving and efficiency: flat design fits tightly into the winding slots, maximizing the cross-sectional area of the conductor in the same volume.
Excellent heat dissipation and high stability: Flat surface increases the contact area with air, which reduces the operating temperature by 15%-25% compared with round wire.
Reliable insulation and short-circuit prevention: multi-layer enamel coating is not easy to fall off, breakdown voltage ≥15kV/mm, effectively avoiding the risk of short-circuit.
Flexible customization and wide range of adaptability: support size, insulation material, heat-resistant grade personalized customization to meet specific application requirements.