Enameled Flat Wire - Copper, Aluminum & CCA (180-220 °C)

Product Overview

Enameled flat wire uses a rectangular conductor instead of a round one. Because the conductor fills the winding window far more efficiently, a flat winding achieves a higher slot fill factor than the equivalent round wire coil, allowing more copper in the same space, lower resistance, larger current capability and reduced temperature rise.

The greater conductor surface area also improves heat dissipation and reduces skin effect and high-frequency losses, which makes flat wire well suited to high-current and high-frequency duty. We supply flat wire in copper, aluminium and copper-clad aluminium from 0.1 mm thickness in thermal classes 180 to 220.

Key Advantages

• Dual manufacturing hubs in Changzhou and Foshan, China, covering both fine-gauge and heavy-gauge production.
• Full production range from 0.04 mm to 2.50 mm, supporting everything from micro-motors to large power equipment.
• Monthly output of approximately 3,000 tons, with stable capacity for repeat and high-volume programmes.
• ISO 9001 and ISO 14001 certified quality and environmental management systems.
• RoHS and REACH compliant insulation systems for European and North American markets.
• Wire manufactured in accordance with IEC, NEMA, GB and JIS international standards.
• Higher slot fill than round wire, allowing more conductor in the same space.
• Larger cross-section reduces resistance and improves current capability.
• Greater surface area improves heat dissipation and reduces skin effect.
• Low vibration, low noise and excellent electromagnetic performance.

Product Features

• Coil occupies less space for the same electrical rating.
• Larger conductor cross-section within the same winding window.
• Improved slot fill factor permits higher current without overheating.
• Significantly improved skin effect and lower high-frequency loss.
• Enhanced heat dissipation for high-current operation.
• Low vibration, low noise and excellent electromagnetic characteristics.
• Smooth, uniform enamel coating with controlled edge geometry.

Typical Applications

• New-energy and traction motors.
• Dry-type and special transformers.
• Welding machines, rectifiers and reactors.
• Large low-voltage electromagnetic windings.
• High-frequency inductors and power electronics.
• Hair-pin and precision motor winding technologies.

Packing & Delivery

Quality Assurance & Certifications

• Quality management system certified to ISO 9001; environmental management certified to ISO 14001.
• Insulation systems compliant with RoHS and REACH directives for EU and North American supply chains.
• Routine electrical and dimensional testing on every production batch before release.
• Traceability maintained from raw conductor lot through to finished spool.
• Products manufactured to IEC, NEMA, GB and JIS dimensional and performance standards.

Enamel Type Reference

The enamel designations below are the international equivalents of the Chinese GB codes. All five enamel systems are available on copper, aluminium and copper-clad aluminium conductors, and can be combined with the insulation grades and thermal classes shown on this page.

FAQ

Request a Quotation

Need Pricing or a Technical Datasheet?

Send us your conductor size, thermal class and quantity requirement. Our engineers will confirm the correct grade and enamel build, and issue a formal quotation within one working day.