Polyester film covered rectangular aluminum wire

Conductor Material：High-purity electrical aluminum (Al ≥99.7%), complying with GB/T 5584.3

Conductor Shape：Rectangular (flat) – custom profiles available on request

Conductor Dimensions (a × b)：a (minor side): 0.80 – 8.00 mm; b (major side): 3.00 – 25.00 mm

Insulation Construction：2–3 layers of polyester film (PET); optional non-woven fabric interlayer

Insulation Thickness：Single or double layer, or as per customer requirements

Lap Ratio：≥ 50% (adjustable)

Thermal Class：Class B (130°C)

Resistivity at 20°C：≤ 0.028010 Ω·mm²/m

Color：Transparent white

Applicable Standards：GB/T 7673-2008 (Paper-covered winding wires) and enterprise standards

This product consists of a high-purity aluminum rectangular conductor uniformly wrapped with 2–3 layers of polyester (PET) film. It offers excellent dielectric strength, good heat resistance (Class B, 130°C), and reliable performance in oil or chemical environments. The aluminum core makes the wire approximately 60% lighter than copper, significantly reducing equipment weight while maintaining cost efficiency.

Key advantages: Tight film wrap ensures mechanical durability for automated winding; high insulation resistance prevents short circuits; and rectangular shape maximizes slot fill factor in motors, transformers, and reactors.

Applications: Power transformers, reactors, industrial motors, servo motors, new energy converters (PV, wind, EV), generators, and other electromagnetic devices.

Standards: Compliant with GB/T 7673-2008 and optionally IEC 60317-69. Custom sizes and insulation thicknesses available.