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Customizable Enameled Flat Wire from China Suppliers - High-Quality Factory for Electrical Equipment Windings
Product Information
Designed for versatility, this enameled flat wire is fabricated from high-purity oxygen-free copper or electrical aluminum rod, processed by drawing and extrusion with molds tailored to specific dimensions. It is widely used in the windings of various electrical equipment, including power transformers, distribution reactors, and electronic inverters, providing reliable insulation and conductive performance. Based on the type of insulating paint, it is divided into six categories to cover different application scenarios:
- ●QQ/QQN: 120℃ Polyvinyl Acetal / Self-adhesive Polyvinyl Acetal Enameled Flat Wire
- ●QZ: 130℃ Polyester Enameled Flat Wire
- ●QZG: 155℃ Modified Polyester Enameled Flat Wire
- ●QZY: 180℃ Polyester Imide Enameled Flat Wire
- ●Q(ZY/XY): 200℃ Polyester Imide / Polyamide-Imide Composite Enameled Flat Wire
- ●QXY: 220℃ Polyamide Imide Enameled Flat Wire
Flexible Production Specifications
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Conductor Thickness (a)
0.80 – 5.60 mm (adjustable to customer needs)
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Conductor Width (b)
2.00 – 16.00 mm (supports custom width ratios)
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Insulation Thickness
Thin film: 0.06–0.11 mm | Thick film: 0.12–0.17 mm
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Self-adhesive Layer (QQ/QQN)
0.03 – 0.06 mm
Detail Shot
Material & Performance Assurance
- ✔ Copper conductors meet GB5584.2-2009 standards, ensuring low resistivity (≤0.017241 Ω·mm²/m at 20℃) and excellent conductivity.
- ✔ Aluminum conductors comply with GB5584.3-2009, with resistivity ≤0.02801 Ω·mm²/m at 20℃, balancing cost and performance.
- ✔ Each insulation category adheres to international standards (GB/T 7095 series, IEC 60317) and passes strict tests (GB/T 4074, IEC 60851) for breakdown voltage, scratch resistance, and solvent resistance.
- ✔ Hengte Electric, an ISO9001:2015 certified manufacturer, offers full customization based on customer technical drawings or specifications. Whether you need specific thermal grades, conductor dimensions, or insulation properties, we can tailor the product to your exact requirements.
ISO 9001:2015
SGS Certified
UL Certified
CE Certified
IEC 60317
GB/T 7095
1What is enameled flat wire and where is it used?
Enameled flat wire is a rectangular-section conductor coated with insulating enamel paint. It is primarily used in the windings of power transformers, distribution reactors, and electronic inverters, where compact winding space and reliable insulation are essential.
2What conductor materials are available for enameled flat wire?
The wire is available in two conductor materials: high-purity oxygen-free copper (meeting GB5584.2-2009, resistivity ≤0.017241 Ω·mm²/m at 20℃) and electrical-grade aluminum (meeting GB5584.3-2009, resistivity ≤0.02801 Ω·mm²/m at 20℃), allowing customers to choose based on performance and cost requirements.
3What thermal grades are available, and how do I choose the right one?
Six thermal grades are available: 120℃ (QQ/QQN), 130℃ (QZ), 155℃ (QZG), 180℃ (QZY), 200℃ (Q(ZY/XY)), and 220℃ (QXY). Selection depends on the operating temperature of your equipment. Higher thermal grades offer better heat resistance for demanding applications such as high-frequency inverters or large power transformers.
4Can the conductor dimensions be customized?
Yes. Conductor thickness (a) ranges from 0.80 mm to 5.60 mm, and conductor width (b) ranges from 2.00 mm to 16.00 mm, both adjustable to customer requirements. Insulation thickness options include thin film (0.06–0.11 mm) and thick film (0.12–0.17 mm), with a self-adhesive layer (0.03–0.06 mm) available for QQ/QQN types.
5What quality certifications does the product hold?
All products are manufactured under an ISO9001:2015 certified quality management system and have obtained SGS, UL, and CE certifications. Insulation performance complies with international standards including GB/T 7095 series and IEC 60317, with testing carried out per GB/T 4074 and IEC 60851 for breakdown voltage, scratch resistance, and solvent resistance.
6Does Hengte Electric support OEM or custom orders based on technical drawings?
Yes. Hengte Electric provides full customization services based on customer-supplied technical drawings or detailed specifications. Whether you require a specific thermal grade, conductor size, insulation thickness, or conductor material, the production team can tailor the enameled flat wire precisely to your project requirements.