Product: enameled wire (also known as insulated copper wire) Construction Inner layer: pure copper Coating: surface insulating paint Outer finish: polyester patent leather Specification notes The diameter specification refers to the drawn copper wire diameter (the inner diameter before paint film) Packing 1 x enameled wire (500 g / 17.6 oz) Electrical and thermal performance Voltage rating: 3000–5000 V Temperature rating: 130–180 C Direct welding capability frequency resistance Portable and easy to handle Key benefits Suitable for direct welding for efficient fabrication and repairs Suitable for frequency applications due to insulating coating insulation performance with copper core for reliable windings Portable and easy to transport for onsite work or use 2–3 practical use scenarios Winding coils for transformers, inductors, or small motors where a durable enamel insulation is required DIY electronics, repairs, or prototyping projects that involve voltage insulation and frequency operation Assembly or work on equipment that demands solder direct welding with a robust enamelcoated copper wire Material and performance highlights Copper core provides good electrical conductivity Enamel coating and polyester outer finish offer reliable insulation and mechanical protection Rated for voltage applications and elevated temperatures within the specified range