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)

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· Model NumberQA-1/180 (GB/T 6109.23-2008 / IEC 60317-51)

· Thermal Class180 (Class H)

· Insulation MaterialPolyurethane (High-heat modified PU)

· Conductor MaterialElectrolytic Copper (Oxygen-free, high purity)

· Film GradeGrade 1 (Single coating) — minimal insulation increment

· Conductor Diameter Range0.04 mm – 0.40 mm (custom sizes available)

· SolderabilityDirect solderable at 390°C~430°C without stripping insulation

· Heat Shock (℃)200℃

· Cut-through Temperature≥230℃

· Breakdown Voltage (Grade 1)Exceeds IEC requirements, refer to table below

· Standard ComplianceIEC 60317-51, GB/T 6109.23, NEMA MW 80-C

· Elongation≥15% (depending on diameter)

· SpringinessExcellent flexibility, no cracking after winding

· Pin Hole TestZero pinholes (100% inspection)

· Application FocusHigh-temp transformers, automotive alternators, power tools, hermetic motors, solenoids, electric vehicle components

· CustomizationAvailable in various colors, packaging (PT-4/PT-10/PT-15 spools)

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).