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High-Temperature Resistant Enameled Flat Copper/Aluminum Wire from China Suppliers | Quality Factory Products

Introducing our premium enameled flat wire, expertly crafted from high-purity oxygen-free copper or superior electrical aluminum rod. Manufactured in our state-of-the-art factory, this wire undergoes precision drawing and extrusion using customized molds to meet the highest standards. Ideal for windings in high-temperature electrical devices, such as industrial transformers, high-voltage reactors, and power converters, our wire is categorized by insulating paint types and is available in six thermal grades, ranging from 120℃ to 220℃. Trustworthy China suppliers, we guarantee reliable performance even in extreme heat conditions, making our enameled flat wire the perfect choice for your industrial needs

    Product Information

    This enameled flat wire takes high-quality oxygen-free copper or electrical aluminum rod as raw materials, which are strictly processed through drawing and extrusion by specification-specific molds to ensure uniform conductor structure. Its primary application lies in the windings of electrical equipment that demand stable operation at elevated temperatures, including heavy-duty transformers, high-frequency reactors, and industrial inverters. Based on the insulation paint formulation, it is categorized into six core types to match different thermal requirements:

    • 120℃ Polyvinyl Acetal / Self-adhesive Polyvinyl Acetal Enameled Flat Wire (QQ/QQN)
    • 130℃ Polyester Enameled Flat Wire (QZ)
    • 155℃ Modified Polyester Enameled Flat Wire (QZG)
    • 180℃ Polyester Imide Enameled Flat Wire (QZY)
    • 200℃ Polyester Imide / Polyamide-Imide Composite Enameled Flat Wire (Q(ZY/XY))
    • 220℃ Polyamide Imide Enameled Flat Wire (QXY)
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    Production Scope
    Parameter Specification
    Conductor Thickness — a 0.80 – 5.60 mm
    Conductor Width — b 2.00 – 16.00 mm
    Maximum Conductor Width Ratio 20 : 1
    Conductor Material Performance

    Soft Copper Flat Wire — Adheres to GB5584.2-2009, with resistivity ≤0.017241 Ω·mm²/m at 20℃, available in three mechanical strength grades: C1 / C2 / C3.

    Soft Aluminum Flat Wire — Complies with GB5584.3-2009, with resistivity ≤0.02801 Ω·mm²/m at 20℃, ensuring efficient electrical conductivity.

    Detail Shot
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    Insulation & Thermal Performance

    Insulation thickness options include thin film (0.06–0.11 mm) and thick film (0.12–0.17 mm), while self-adhesive layers range from 0.03–0.06 mm, all monitored by professional dielectric loss meters. Key thermal performance highlights:

    • QZY (180℃) — Offers exceptional heat resistance and heat shock resistance, suitable for high-temperature industrial equipment.
    • Q(ZY/XY) (200℃) — Combines refrigerant and radiation resistance, ideal for harsh operating environments.
    • QXY (220℃) — Boasts superior chemical solvent resistance, maintaining stability in extreme conditions.

    All products meet GB/T 7095 series and IEC 60317 standards, with breakdown voltage values reaching 1000V (Grade 1) and 2000V (Grade 2) at room temperature. As an ISO9001:2015 certified supplier, Hengte Electric's products have passed SGS, UL, and CE tests, ensuring quality compliance. Customization is available based on customer-provided technical specifications.

    ISO9001:2015 SGS Certified UL Approved CE Compliant IEC 60317
    Frequently Asked Questions
    Q What thermal class options are available for the enameled flat wire?
    The enameled flat wire is available in six thermal classes: 120℃ (QQ/QQN), 130℃ (QZ), 155℃ (QZG), 180℃ (QZY), 200℃ (Q(ZY/XY)), and 220℃ (QXY). Each grade is designed to match specific insulation paint formulations and operating temperature requirements.
    Q What conductor materials are available, and what are their electrical properties?
    Two conductor materials are offered: soft copper flat wire (GB5584.2-2009) with resistivity ≤0.017241 Ω·mm²/m at 20℃, available in C1/C2/C3 mechanical strength grades; and soft aluminum flat wire (GB5584.3-2009) with resistivity ≤0.02801 Ω·mm²/m at 20℃ for efficient electrical conductivity.
    Q What are the standard production size ranges for the enameled flat wire?
    The conductor thickness (a) ranges from 0.80 mm to 5.60 mm, and the conductor width (b) ranges from 2.00 mm to 16.00 mm. The maximum conductor width ratio is 20:1. Custom dimensions can be produced based on customer-provided technical specifications.
    Q What international standards and certifications does the product comply with?
    All products meet GB/T 7095 series and IEC 60317 international standards. The manufacturer, Hengte Electric, holds ISO9001:2015 certification and products have passed SGS, UL, and CE testing, ensuring full quality compliance for global markets.
    Q What insulation thickness options are available, and what breakdown voltage can be achieved?
    Insulation thickness is available in thin film (0.06–0.11 mm) and thick film (0.12–0.17 mm) options. Self-adhesive layers range from 0.03–0.06 mm. Breakdown voltage at room temperature reaches 1000V for Grade 1 and 2000V for Grade 2, monitored by professional dielectric loss meters.
    Q What are the main application areas for this enameled flat wire?
    The enameled flat wire is primarily used in the windings of electrical equipment requiring stable operation at elevated temperatures, such as heavy-duty transformers, high-frequency reactors, and industrial inverters. The 200℃ and 220℃ grades are particularly suitable for harsh environments involving refrigerants, radiation, and chemical solvents.

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