Class F-155 Enameled Copper Wire | Magnet Winding Wire

Enameled copper wire is a type of winding wire made by coating one or more layers of a special insulating enamel film onto the surface of a pure, highly conductive copper conductor using a precision process. It combines excellent conductivity with reliable insulation, making it an indispensable fundamental material in modern power electronics, electrical appliances, and precision instruments.

This enameled copper wire can operate continuously at F class 155℃, exhibiting excellent adhesion, solvent resistance, surface strength, and resistance to softening and breakdown, making it suitable for mechanical winding.

【Specification Range】Φ0.310-5.000mm

【Standards】GB/T6109.2-2008; IEC60317.

【Process】180 composite polyester two-coating, felt coating process.

【Main Raw Materials】Oxygen-free copper rod, Danyang Sida dried insulating varnish.

【Application Areas】Mainly used in Class B and Class F small and medium-sized general-purpose motors and electrical instrument coils.

Features of Enameled Copper Wire:

• Strong Mechanical and Chemical Resistance: The enamel film possesses good flexibility, abrasion resistance, and scratch resistance, capable of withstanding mechanical stress during winding and embedding. It also resists corrosion from transformer oil, solvents, and humid environments.

• High space utilization: The extremely thin and uniform enamel coating allows for higher slot fill factor or more compact coil designs within the same conductor cross-sectional area.

• Excellent solderability and direct solderability: Some enameled wires (such as polyurethane wires) can be directly soldered without pre-removing the enamel coating, greatly improving production efficiency.