Product Description
Our Enameled Copper Round Wire is a high-performance magnet wire
designed for use in various industrial applications such as motors,
ignition coils, relays, and transformers. Manufactured using
high-purity copper as the conductor and polyurethane as the
insulation, this wire is known for its superior electrical
conductivity, heat resistance, and mechanical strength.
Available in diameters ranging from 0.012mm to 4.5mm, this wire is
ideal for precision winding and forming coils that require
consistent performance under high temperatures. It is particularly
suited for motor windings, transformer coils, and other high-demand
electrical components. The wire is coated with a durable enameled
insulation that enhances the durability and efficiency of
electrical systems, even under extreme conditions.

Key Product Features
- High Purity Copper: Made from high-quality copper for excellent electrical
conductivity and performance.
- Insulation Material: Enameled with polyurethane to withstand high temperatures (up to
220 °C).
- Wide Range of Diameters: Available in diameters from 0.012mm to 4.5mm, allowing
customization for various applications.
- Thermal Resistance: Rated for thermal classes 155 °C, 180°C, 200°C, and 220°C to
withstand extreme conditions.
- Precision Windings: Ideal for precision winding in motors, transformers, ignition
coils, and relays.
- Compliance with International Standards: ISO9001, UL, SGS, IEC, NEMA, JIS certifications for assured
quality and safety.
- Packaging: Comes in bubble bags with cartons for secure delivery.
Working Principle
The Enameled Copper Round Wire operates primarily as a conductor of
electricity in coils and windings. The high-purity copper conductor
ensures maximum electrical conductivity, which reduces energy
losses and increases efficiency in motors, transformers, and other
electrical systems.
The polyurethane insulation provides heat resistance, which allows
the wire to perform under extreme temperatures (up to 220°C). This
insulation also ensures the wire's durability and prevents short
circuits or damage to the wire's surface during winding and
operation.
The wire is often used in coil winding applications, such as in
motors and transformers, where the copper wire is tightly wound to
create the magnetic fields required for the operation of electrical
machinery. The superior insulation helps protect the wire from heat
and wear, ensuring a longer lifespan for the electrical components.

Frequently Asked Questions
Q1: What is the insulation material used in this copper wire?
A1: The wire is coated with polyurethane insulation, which provides
excellent heat resistance and durability, making it ideal for
high-temperature applications.
Q2: What applications is this enameled copper wire suitable for?
A2: This wire is perfect for motors, ignition coils, relays,
transformers, and other electrical appliances requiring
high-performance wire for winding and power transfer.
Q3: What is the thermal class rating for this wire?
A3: The wire is available in multiple thermal class ratings,
including 155 °C, 180°C, 200°C, and 220°C, making it suitable for
various high-temperature applications.
Q4: Can I get this wire in different diameters?
A4: Yes, the wire is available in diameters ranging from 0.012mm to
4.5mm, and can be customized to meet specific needs.
Q5: Does this copper wire meet any international standards?
A5: Yes, it complies with IEC, NEMA, JIS, and is certified by
ISO9001, ISO4001, UL, and SGS for guaranteed quality.
Q6: How is the wire packaged for shipment?
A6: The wire is packed securely in bubble bags and then placed in
cartons to ensure safe delivery.