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Help CenterClass 155 Enameled Aluminum Magnet Wire for Transformer Applications
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Shandong Huilong Electrical Material Co., Ltd., established in 1970 with over 50 years of manufacturing expertise, presents our premium Class 155 Enameled Aluminum Magnet Wire. Engineered specifically for transformer applications, this wire delivers exceptional thermal stability and electrical performance. Manufactured in our 10,000-30,000 sqm facility by a dedicated team of 51-100 professionals, each product undergoes rigorous quality control to ensure consistent reliability in demanding electrical environments.
Our transformer-grade magnet wire features:
- Superior Thermal Endurance - Withstands continuous operation temperatures up to 155°C
- Optimized Electrical Properties - Low dielectric loss for enhanced transformer efficiency
- Mechanical Durability - Resistant to vibration and thermal cycling stresses
- Chemical Resistance - Compatible with transformer varnishes and impregnating resins
Technical specifications include:
| Parameter | Value Range | Testing Standard |
|---|---|---|
| Conductor Diameter | 0.2mm - 5.0mm | IEC 60317 |
| Dielectric Strength | ≥ 70 V/μm | ASTM D1676 |
| Elongation at Break | ≥ 15% | ISO 6892 |
| Thermal Shock Resistance | Passes 3x at 155°C | NEMA MW 1000 |
Key performance advantages:
- Reduces eddy current losses by up to 30% compared to conventional wires
- Enables compact transformer designs through space-efficient winding
- Maintains insulation integrity during thermal overload conditions
- Compatible with automatic winding equipment for manufacturing efficiency
With over US$100 million in annual exports and certifications including ISO9001 and ISO14000, we supply industrial clients across North America, Europe, Asia, and beyond through major ports like Qingdao and Shanghai. Our Class 155 wire undergoes 27 quality checkpoints during production, ensuring consistent performance in power distribution transformers, current transformers, and specialty electrical equipment. Contact our engineering team to discuss custom specifications or request samples for your next transformer project.
FAQ Section
Q: What temperature range does Class 155 indicate?
A: Class 155 denotes a maximum continuous operating temperature of 155°C with a 25°C hotspot allowance.
Q: Can this wire be used in high-humidity environments?
A: Yes, the enamel insulation provides excellent moisture resistance when properly impregnated.
Q: What packaging options are available?
A: Standard packaging includes 5kg-50kg spools, with custom packaging available upon request.
Q: Do you offer different conductor shapes?
A: Round conductors are standard; rectangular profiles can be customized for specific applications.
Q: What is the typical lead time for orders?
A: Standard specifications ship within 15-20 days; expedited options may be available.
Q: Are sample orders available?
A: Yes, we provide sample spools for technical evaluation and testing.
Q: What quality documentation accompanies shipments?
A: Each shipment includes test certificates for key parameters including dielectric strength and thermal class.
Q: Can this wire be used in inverter-duty transformers?
A: Yes, it's suitable for applications with harmonic distortion when properly designed.
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