Product overview Enameled wire, also known as insulated copper wire, features a pure copper core with a surface insulating coating and a polyester patent leather finish. Packing: 1 x enameled wire (500 g / 17.6 oz). Key benefits Direct welding capability: can be welded directly, improving ease of use in coil winding and assembly. frequency resistance: suitable for RF and frequency applications. Robust insulation: designed to withstand voltages and operating temperatures, helping reduce insulation failures. Portable and convenient: supplied in a single pack weight of 500 g, easy to store and transport. Clear sizing standards: color classification in listings reflects wire diameter (specification) and conforms to national standard copper wire specifications. Clear specification reference: specification indicates the diameter of the drawn copper wire (the inner diameter before enamel coating). Technical specifications Product type: enameled wire (insulated copper wire) Core material: pure copper Coating: surface insulating paint with polyester patent leather Packing quantity: 1 x enameled wire (500 g / 17.6 oz) Voltage withstand (dielectric): 3000 V to 5000 V Operating/temperature range: 130 to 180 degrees Celsius Key feature: can be directly welded Frequency performance: resistant to frequency Color classification: refers to wire diameter (specification) Standards: copper wire adheres to national standard specifications Specification reference: refers to the diameter of the drawn copper wire, i.e., the inner diameter before coating Size and materials notes The color classification shown in the listing corresponds to the wire diameter (the specification). The specification indicates the diameter of the drawn copper wire, meaning the inner diameter prior to applying the paint/coat. The product uses a pure copper core with a surface insulating paint and polyester patent leather coating. Practical use scenarios Coil winding for transformers, inductors, chokes, and small motors: the enamel coating allows tight windings without shorting between turns and supports direct welding. Electronics prototyping and RF applications: suitable for frequency circuits and hobbyist projects that require reliable insulation and easier assembly. DIY projects and work: convenient for hobbyists and students to create or wound components, with a pack size that supports multiple coils or test setups. Compatibility and reliability This enameled wire is designed to meet national standard specifications for copper wire, ensuring broad compatibility with common winding and assembly practices. The insulation and coating provide reliable isolation for voltages in the 3000–5000 V range and temperatures up to 180 C, supporting durable performance in suitable applications.