QA/155/180 Solderable Polyurethane Enameled Copper/Aluminum Round Wire

With the continuous development of electric motors, transformers, and advanced electrical equipment, the demand for high-performance magnet wires has increased significantly. Electrical windings used in industrial motors, power equipment, and transformers must maintain stable performance under long-term operation at elevated temperatures while also meeting requirements for solderability, insulation reliability, and high-frequency performance.

QA/155/180 Solderable Polyurethane Enameled Copper/Aluminum Round Wire is designed to meet these demanding requirements. Combining excellent thermal resistance, solderable insulation properties, low dielectric loss, and flexible processing performance, this enameled wire provides an effective solution for various electrical winding applications.

What Is QA/155/180 Solderable Polyurethane Enameled Wire?

QA/155/180 solderable polyurethane enameled wire is a specialized magnet wire with a polyurethane insulation coating designed for electrical winding applications.

Unlike conventional enameled wires that require additional stripping processes before soldering, solderable polyurethane enameled wire can be directly tinned under suitable conditions, improving manufacturing efficiency and reducing processing steps.

The product is available in both:

• Solderable polyurethane enameled copper round wire

• Solderable polyurethane enameled aluminum round wire

It is designed for electrical components that operate continuously at temperature classes of:

• 155℃

• 180℃

This makes it suitable for applications requiring long-term thermal stability and reliable electrical insulation.

Excellent Solderability Improves Production Efficiency

One of the key advantages of QA/155/180 enameled wire is its solderability.

In traditional winding production, removing insulation before soldering can increase labor requirements and affect production efficiency. Solderable polyurethane insulation simplifies the connection process by allowing the wire coating to be removed during the soldering operation under appropriate conditions.

Benefits include:

• Reduced processing steps

• Improved production efficiency

• Easier terminal connection

• Better manufacturing consistency

This feature makes the wire especially suitable for electrical products requiring frequent soldering operations during assembly.

High Temperature Resistance for Long-Term Operation

Electrical equipment often operates continuously under thermal stress.

Motor windings, transformers, and electrical coils may experience elevated temperatures during normal operation. If the insulation system cannot withstand these conditions, it may lead to insulation aging, reduced performance, or equipment failure.

QA/155/180 enameled wire is engineered for applications requiring continuous operation at:

155℃ to 180℃

The temperature-resistant insulation system helps maintain:

• Electrical insulation performance

• Mechanical stability

• Long-term reliability

• Winding durability

This makes it suitable for industrial motors, electrical equipment, and transformers that require dependable operation over extended periods.

Low Dielectric Loss for High-Frequency Applications

Modern electrical equipment increasingly requires improved performance at higher frequencies.

In high-frequency operating environments, dielectric loss can affect energy efficiency and signal stability. Materials with lower dielectric loss characteristics can help reduce energy loss within electrical systems.

QA/155/180 solderable polyurethane enameled wire features:

• Low dielectric loss

• Good high-frequency resistance performance

• Stable electrical characteristics

These properties make it suitable for applications where electrical efficiency and frequency performance are important considerations.

Colorable Insulation Supports Product Identification

Another practical feature of QA/155/180 enameled wire is its colorability.

Different colors can be used during manufacturing to help identify:

• Different winding sections

• Wire specifications

• Assembly positions

• Production processes

This can improve production management and reduce potential errors during electrical assembly.

For manufacturers producing complex electrical components, clear wire identification can contribute to more efficient production workflows.

Wide Diameter Range Meets Different Winding Requirements

QA/155/180 solderable polyurethane enameled round wire is available in a diameter range of:

0.08 mm to 3.50 mm

This wide specification range allows the wire to meet different application requirements, from small precision electrical components to larger motor winding systems.

Different wire diameters can be selected according to:

• Current requirements

• Winding space

• Heat dissipation conditions

• Mechanical strength requirements

• Electrical design parameters

This flexibility makes the product suitable for a wide variety of electrical manufacturing applications.

Applications of QA/155/180 Enameled Wire

Due to its combination of solderability, temperature resistance, and electrical performance, QA/155/180 enameled wire is widely used in multiple industries.

Electric Motors

Motor windings require insulation materials that can withstand continuous heat generation and mechanical stress.

The solderable polyurethane enameled wire helps improve winding reliability and simplify electrical connections.

Typical applications include:

• Industrial motors

• Small motors

• High-efficiency motors

• Electrical drive systems

Transformers

Transformers require stable insulation performance during long-term operation.

QA/155/180 wire provides suitable thermal resistance and electrical reliability for transformer winding applications.

Electrical Equipment

The wire is also suitable for various electrical devices requiring durable winding systems, including:

• Control equipment

• Power components

• Electromagnetic coils

• Electrical assemblies

Copper and Aluminum Options for Different Requirements

The product is available in both copper and aluminum conductor options.

Enameled Copper Wire

Copper offers:

• Excellent electrical conductivity

• Strong mechanical performance

• Reliable winding characteristics

It is widely used where high conductivity and compact winding designs are required.

Enameled Aluminum Wire

Aluminum provides:

• Lightweight characteristics

• Cost-effective conductor solutions

• Suitable electrical performance for selected applications

The choice between copper and aluminum depends on the specific electrical design, weight requirements, and application conditions.

Why Choosing the Right Enameled Wire Matters

The performance of electrical windings directly affects the reliability of motors, transformers, and electrical equipment.

When selecting enameled wire, manufacturers should consider:

Temperature Class

Choose insulation according to the operating temperature of the equipment.

Solderability Requirements

For production processes requiring direct soldering, solderable wire can improve manufacturing efficiency.

Electrical Performance

High-frequency applications require materials with stable dielectric properties and low loss characteristics.

Wire Diameter

The conductor size should match current capacity and winding design requirements.

Application Environment

Humidity, vibration, thermal cycling, and long-term operation conditions should all be evaluated.

Selecting the correct magnet wire helps improve product reliability and reduce maintenance requirements.

Conclusion

QA/155/180 Solderable Polyurethane Enameled Copper/Aluminum Round Wire provides a practical solution for electrical manufacturers seeking high-temperature resistance, solderability, and reliable electrical performance.

With advantages including:

• Temperature resistance up to 180℃

• Direct solderable insulation

• Low dielectric loss performance

• High-frequency resistance characteristics

• Colorable insulation

• Wide diameter availability from 0.08 mm to 3.50 mm

this enameled wire is well suited for motors, transformers, and various electrical equipment requiring stable winding performance.

As electrical systems continue to demand higher efficiency, reliability, and compact designs, advanced solderable polyurethane enameled wire will remain an important material supporting the development of modern electrical technologies.