CHINGCUNG® Special Enameled Wire Expert

Premium Grade 1 – High-Thermal Polyurethane Enameled Copper Wire

QA-1/180 Enameled Copper Round Wire
Polyurethane Base | Thermal Class 180 (Class H) | Grade 1 Insulation Film

Superior thermal endurance for demanding applications — compact windings, automotive systems, power tools & high-temp transformers.

Why QA-1/180 Grade 1?

Grade 1 construction ensures minimum insulation film thickness for increased winding density and space-saving designs. With thermal class 180°C, it provides higher heat resistance than standard class 155 wires, while maintaining direct solderability and excellent flexibility. Perfect for applications exposed to elevated temperatures.

Technical Specifications (Grade 1 Focus)

Dimensional Characteristics — Grade 1 (Minimum Film Increase)

QA-1/180 Grade 1 provides thinner insulation build compared to Grade 2, maximizing copper fill factor while offering Class 180 thermal protection. Below table shows typical conductor diameters with min. film thickness & max. outer diameter for Grade 1 (Grade 2 values shown for reference).

Note: Grade 1 reduces outer diameter by approx. 20-30% compared to Grade 2, enabling compact coil designs and better heat dissipation. Data based on IEC 60317-51 standard. For ultra-fine diameters (<0.10mm) please contact our technical team.

Product Overview & Core Features

CHINGCUNG QA-1/180 enameled copper wire is engineered for high-temperature environments where standard polyurethane wires may not suffice. The advanced polyurethane insulation provides exceptional thermal stability up to 180°C, while the Grade 1 film thickness guarantees maximum copper space factor. This wire combines high-heat performance with outstanding electrical properties, making it the go-to choice for compact, high-power-density windings.

✦ Key engineering advantages: Direct solderability without pre-stripping reduces assembly time and cost. The modified polyurethane varnish offers excellent resistance to refrigerants, oils, and moisture, making it ideal for hermetic motors and automotive under-the-hood applications. QA-1/180 also passes rigorous mandrel wrap and elongation tests, ensuring no insulation cracking during high-speed winding.

✦ Quality commitment: Each batch is 100% tested for pinholes, continuity, and breakdown voltage. Our ISO-certified labs perform regular thermal aging, heat shock, and cut-through tests to guarantee compliance with IEC and NEMA standards. As a specialized enameled wire manufacturer, we offer full traceability from copper rod to final spool.

Electrical & General Information

Performance Parameters (Typical Values)

Why Choose CHINGCUNG for QA-1/180?

✅ With dedicated factories in Jiangsu & Zhejiang, CHINGCUNG has been a trusted supplier for global motor manufacturers, transformer OEMs, and automotive Tier 1 suppliers. Our rigorous quality system ensures zero-defect policy and on-time delivery. Choose QA-1/180 for high-reliability applications where thermal class 180 and compact winding are essential.

Product Resources

Frequently Asked Questions (QA-1/180 Grade 1)

• Q1: What is the main difference between QA-1/180 and QA-1/155?
  A: QA-1/180 offers higher thermal endurance (180°C vs 155°C), making it suitable for more demanding high-temperature applications like automotive alternators, power tools, and hermetic compressors. Both are available in Grade 1 for compact winding.
• Q2: Is QA-1/180 still directly solderable?
  A: Yes, it retains excellent solderability. The insulation decomposes cleanly at approximately 400-430°C, allowing fast soldering without mechanical stripping.
• Q3: Can QA-1/180 be used in sealed/refrigerant environments?
  A: Absolutely. The modified polyurethane coating provides outstanding resistance to refrigerants (R134a, R410a) and compressor oils, widely used in hermetic motors.
• Q4: What about sample availability for small diameters?
  A: Sample spools (1kg~5kg) are available for all diameters, lead time 3-5 days. Custom spool sizes also offered.
• Q5: Does CHINGCUNG provide QA-1/180 in larger diameters & rectangular shapes?
  A: Yes, we can manufacture up to 4.00mm round and also supply rectangular enameled copper wires with Grade 1 insulation upon request.

Shanghai Husu M&E Technology Co., Ltd

CHINGCUNG Brand – Professional Enameled Wire Manufacturer Since 2015

Address: Room 402, Building 13, NO. 518 Xinzhuan Road, Songjiang District, Shanghai, China (201612)

Tel/WhatsApp: +86 13621982708 Email: leon.xu@chingcung.com

Web: https://chingcung.com | Inquiry for QA-1/180 Grade 1 wire now

*All data based on standard test methods and continuous improvement policy. Contact our engineers for custom diameters, thermal class, or special bonding requirements.

CHINGCUNG® QA-1/180 Polyurethane Enameled Copper Wire | Grade 1 | Thermal Class 180 | High-temp windings | Global OEM supplier