Enamelled Wire
Enamelled wire, also known as magnet wire, is a copper or aluminum wire coated with a thin layer of insulation. This insulation prevents short circuits while allowing efficient electromagnetic performance in coils, transformers, and motors. Our high-quality enamelled wire meets industry standards and is suitable for various electrical applications.
Product Specifications
- Material: High-purity copper or aluminum
- Insulation Type: Polyurethane, polyester, or polyamide-imide
- Temperature Rating: Up to 220°C (depending on coating)
- Diameter Range: 0.02mm to 5.0mm
- Voltage Resistance: 100V to 1000V
| Wire Gauge (AWG) | Diameter (mm) | Resistance (Ω/km) | Max Current (A) |
|---|---|---|---|
| 10 | 2.588 | 3.277 | 55 |
| 16 | 1.291 | 13.17 | 22 |
| 20 | 0.812 | 33.31 | 11 |
Enamelled Wire FAQ
What are the main advantages of enamelled wire?
Enamelled wire offers several key benefits: it provides excellent electrical insulation while maintaining minimal thickness, allows for compact winding in electromagnetic applications, and offers superior thermal conductivity compared to other insulated wires. The thin insulation layer enables higher packing density in coils and transformers, resulting in more efficient electrical devices with better performance characteristics.
How does enamelled wire compare to ordinary insulated wire?
Unlike standard insulated wire that uses thicker plastic coatings, enamelled wire features an extremely thin but durable polymer insulation layer. This specialized coating is typically just a few micrometers thick, allowing for tighter winding and better heat dissipation. While ordinary insulated wire might be suitable for basic wiring applications, enamelled wire is specifically designed for use in electromagnetic components where space efficiency and thermal performance are critical.
Performance Characteristics
- Dielectric Strength: 5-10kV (depending on coating thickness)
- Thermal Class: 130°C to 220°C options available
- Solderability: Direct solder capability without stripping
- Flexibility: Excellent for tight winding applications
- Chemical Resistance: Resistant to most solvents and oils
| Property | Test Method | Standard Value |
|---|---|---|
| Breakdown Voltage | IEC 60851-5 | >600V for 0.5mm wire |
| Heat Shock | IEC 60851-6 | No cracks after 250°C for 1 hour |
| Abrasion Resistance | IEC 60851-3 | >50 strokes (minimum) |
Enamelled Wire FAQ
How should enamelled wire be stored?
Enamelled wire should be stored in a clean, dry environment with temperature between -10°C to 40°C and relative humidity below 70%. Avoid direct sunlight exposure and keep away from chemicals that might damage the insulation. For best results, store on reels in their original packaging until ready for use. When storing for extended periods, ensure good ventilation and consider using moisture-absorbing materials in the storage area.
Common Applications
- Electric motor windings
- Transformer coils
- Inductors and solenoids
- Relays and contactors
- Speakers and microphones
| Industry | Application | Recommended Wire Type |
|---|---|---|
| Automotive | Starter motors, alternators | High-temp polyamide-imide |
| Consumer Electronics | Small transformers, speakers | Polyurethane-enameled |
Enamelled Wire FAQ
Can enamelled wire be used for high-frequency applications?
Yes, certain types of enamelled wire are specifically designed for high-frequency applications. For frequencies above 50kHz, Litz wire (a type of enamelled wire composed of multiple individually insulated strands) is often recommended to reduce skin effect losses. The insulation material and wire diameter should be carefully selected based on the operating frequency - thinner insulation and smaller diameter wires typically perform better at higher frequencies due to reduced dielectric losses and better current distribution.