Enameled Round Copper Wire

Enameled Round Copper Wire is manufactured using high-quality copper as the conductor and enamel as the primary insulation. The conductor is drawn and annealed to achieve good electrical conductivity, dimensional accuracy, and flexibility. The enamel coating is applied through a controlled multi-layer enameling process to provide reliable electrical insulation and thermal performance.

CopperConductor

RoundProfile

EnamelInsulation

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Product Overview

Conductor

High-purity copper conductor with ≥99.97% copper purity, providing excellent electrical conductivity for winding applications.

Winding Requirements

Available in AWG, SWG, and customized diameters, with different thermal classes and insulation grades to meet various winding and processing requirements.

Insulation

Coated with premium enamel insulation in Grade 1 or Grade 2, with controlled insulation thickness to provide reliable electrical insulation and thermal performance.

Technical Specifications

Parameter	Details
Conductor Material	Copper
Copper Purity	≥ 99.97%
Conductor Shape	Round
Conductor Diameter	AWG / SWG and customized according to requirements
Thermal Class	130°C / 155°C / 180°C / 200°C / 220°C
Insulation Grade	Grade 1 / Grade 2
Insulation Material	Enamel
Insulation Thickness	According to IEC / customer requirements
Conductor Resistivity at 20°C	≤ 0.01710 Ω·mm²/m
Applicable Standards	IEC 60317 / NEMA / GB / Customer Specifications
Color	Natural / Customized
Packaging	Plastic Spool / Wooden Spool / Customize

Values shown are typical ranges — exact parameters are confirme.

Material Description

Conductor Materials

① Copper Conductor:
• Made from high-quality oxygen-free copper rods
• Oxygen content < 20 ppm
• Conductivity after annealing > 100% IACS

② Aluminum Conductor:
• Made from high-quality electrical grade aluminum rods
• Conductivity after annealing > 62% IACS

Insulation Materials

Premium domestic and international enameled wire insulating varnishes.

Key Advantages

Excellent electrical conductivity

Copper purity ≥ 99.97%, conductivity > 100% IACS, resistivity ≤ 0.01710 Ω·mm²/m for minimized copper losses.
Uniform and reliable enamel insulation

Premium varnishes with strict thickness control per IEC/NEMA/GB standards, ensuring low pinhole count and long-term reliability.
Good flexibility & winding performance

Ultra-low oxygen content (< 20 ppm) and strong film adhesion enable high-speed automatic winding without breakage or cracking.
Stable dimensional accuracy

Precise conductor diameter control with tight OD tolerances for consistent winding and product uniformity.
Available in different thermal classes and insulation grades

Five thermal classes from 130°C to 220°C, plus Grade 1/2 insulation thickness options, with customization available.