Enameled copper winding wire, also known as magnet wire, is widely used in electrical applications due to its excellent conductivity, insulation, and durability. The 0.4mm enameled copper wire is a popular choice for transformers, electric motors, automotive components, and various electronic devices.
1. What is 0.4mm Enameled Copper Winding Wire?
Enameled copper wire is a high-purity copper conductor coated with a thin layer of insulation (enamel) to prevent short circuits between windings. The 0.4mm diameter variant is commonly used in applications where precision, efficiency, and thermal resistance are required.
Key Properties:
✅ High Conductivity: Made of pure copper for excellent electrical performance.
✅ Enamel Insulation: Provides electrical insulation and protects against short circuits.
✅ Heat Resistance: Available in different thermal classes (120°C, 155°C, 180°C, 200°C).
✅ Durability: Resistant to abrasion, moisture, and chemicals.
2. Applications of 0.4mm Enameled Copper Wire
This type of winding wire is commonly used in various electrical and electronic applications:
🔹 Electric Motors – Used in stators, rotors, and small motors.
🔹 Power Transformers – Essential for voltage conversion and energy transfer.
🔹 Automotive & EV Components – Ideal for electric vehicle motors and ignition coils.
🔹 Inductors & Coils – Found in electronic circuits and power supplies.
🔹 Speakers & Headphones – Used in voice coils for audio applications.
3. Technical Specifications
Below is a detailed specification table for 0.4mm enameled copper winding wire:
| Specification | Details |
|---|---|
| Wire Diameter | 0.4mm (AWG 26) |
| Material | High-purity copper (99.99%) |
| Insulation Type | Polyurethane, Polyester, or Polyimide |
| Thermal Class | 120°C, 155°C, 180°C, 200°C |
| Electrical Resistance | ~14.2 Ω/km (Ohm per kilometer) |
| Breakdown Voltage | 1500V – 5000V (depends on insulation type) |
| Elongation | ≥ 15% (for flexibility and durability) |
| Application | Motors, transformers, EVs, inductors, electronics |
4. Why Choose 0.4mm Enameled Copper Wire?
✔ High Efficiency – Ensures minimal energy loss and maximum conductivity.
✔ Superior Insulation – Protects against electrical shorts and enhances durability.
✔ Wide Temperature Range – Available in multiple thermal classes to suit different environments.
✔ Versatile Use – Suitable for industrial, automotive, and electronic applications.
5. How to Select the Right Enameled Copper Wire?
When choosing 0.4mm enameled copper winding wire, consider the following:
🔹 Voltage & Current Requirements – Ensure the wire meets the electrical specifications of your application.
🔹 Thermal Class – Select the appropriate temperature resistance based on the operating environment.
🔹 Coating Type – Different enamel types provide various levels of heat, chemical, and mechanical resistance.
🔹 Application Needs – Choose based on whether it’s for high-speed motors, transformers, or delicate electronics.
6. Where to Buy High-Quality 0.4mm Enameled Copper Wire?
We provide premium-grade enameled copper winding wires with superior insulation and conductivity. Contact us today for bulk orders, technical assistance, and custom specifications.
