Class 120 Polyvinyl Acetal Enameled Copper Wire
Class 120 Polyvinyl Acetal Enameled Copper Wire is a type of magnet wire composed of a high-purity round copper conductor insulated with a high-performance polyvinyl formal acetal (PVF) enamel layer.
Class 120 Polyvinyl Acetal Enameled Copper Wire is a type of magnet wire composed of a high-purity round copper conductor insulated with a high-performance polyvinyl formal acetal (PVF) enamel layer.
Specifications:
Conductor Diameter: 0.016 – 7.0 mm
Insulation Thickness: Grade 1 (G1); Grade 2 (G2)
Certification: UL Recognized
Compliant Standards: IEC, NEMA, GB, JIS
Packaging: PT-4 to PT-200 or ply-wood spools
Characteristic:
| Features | Advantages | Application Value |
| Excellent Oil Resistance | The paint film resists corrosion from transformer oil, lubricants, and other chemicals. | Ideal for oil-immersed transformers and motors operating within oil circulation systems. |
| High Mechanical Strength | The paint film is durable and wear resistant, offering excellent scratch and impact resistance. | Suitable for high speed winding operations, it reduces insulation damage during production and installation. |
| Excellent Flexibility | Easy to bend and form, facilitating complex winding structures. | This ensures tight, crack free windings and improves winding reliability. |
| Stable Electrical Performance | Delivers reliable insulation breakdown voltage | effectively preventing winding short circuits and ensuring safe operation of electrical equipment. |
| Excellent Hydrolysis Resistance | Maintains stable performance in humid or watery environments | extending the service life of equipment in humid environments. |
Comparison with Other Temperature Classes:
| Features | Grade 120 (Acetal Enameled Wire) | Grade 180(Polyesterimide/Polyurethane) | Grade 200(Polyesterimide Composite) | Grade 220(Polyamideimide) | Grade 240(Polyimide/Corona-Resistant Enameled Wire) |
| Heat Resistance | ★★★☆☆ | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★★★ |
| Max. Operating Temp. | 120°C | 180°C | 200°C | 220°C | 240°C |
| Thermal Shock Resistance | Average | Good | Excellent | Excellent | Outstanding |
| Chemical Resistance | Good (Refrigerant) | Fair | Excellent | Excellent（Acid/ Alkali Resistance） | Excellent（Solvent） |
| Mechanical Strength | Excellent, High Adhesion | Good | Excellent | Excellent | Average (Brittle Film) |
| Electrical Performance | Good | Excellent | Excellent | Excellent | Outstanding (HF/Corona) |
Main Applications
Oil-Immersed Transformers: The preferred choice for windings in power and distribution transformers, capable of long-term immersion in transformer oil without performance degradation.
General-Purpose and Micro Motors: Suitable for various small and medium-sized motor windings that demand high mechanical strength and oil resistance.
Electromagnetic Coils and Relays: Used in manufacturing coils and inductive components requiring robust mechanical strength and stable insulation performance.
Power Tools and Household Appliances: Ideal for applications demanding reliable insulation and long service life.
If you are seeking a cost-effective magnet wire with stable performance for your motor, transformer, or coil project, LP Class 120 Polyvinyl Acetal Enameled Copper Wire is an ideal solution.