Polyester Enameled Copper Round Wire (PEW, 130/155 °C)

Thermal Class: 130/155/ °C
Dimension: 0.1-2.50 mm; AWG 10-36
Application: industrial motors, transformers, generators

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Estimated Delivery:Oct 31 - Nov 04

Polyester Enameled Copper Round Wire (PEW)

Technical Specifications

130 °C (Class F) / 155 °C (Class H) 0.12 – 2.50 mm IEC 60317 / NEMA MW 1000 / GB/T 6109

Product Name	Polyester Enameled Copper Round Wire
Enamel Code	PEW (GB QZ) polyester
Conductor	Electrolytic copper, Cu ≥ 99.95%
Diameter Range	0.1 – 2.50 mm
Thermal Class	130 °C (Class B) / 155 °C (Class F)
Insulation Grade	Grade 1, Grade 2, Grade 3
Colour	Natural amber, red, blue, green; custom colours on request
Standards	IEC 60317, NEMA MW 1000, GB/T 6109, JIS C 3202
Compliance	RoHS, REACH
Packing	PT-25 – PT-270 spool, or plywood spool for heavy gauge; 5 – 150 kg per spool

Product Overview

Polyester enameled copper round wire is the general-purpose grade used across the widest range of industrial winding applications. It offers a well-balanced combination of adhesion, pinhole resistance, dielectric strength and cost, making it suitable for the majority of standard motor and transformer designs.

Our range covers diameters from 0.1 to 2.50 mm in thermal classes 155 through 220, including heavy-gauge sizes for larger machines and distribution transformers.

Key Advantages

Dual manufacturing hubs in Changzhou and Foshan, China, covering both fine-gauge and heavy-gauge production.
Full production range from 0.04 mm to 2.50 mm, supporting everything from micro-motors to large power equipment.
Monthly output of approximately 3,000 tons, with stable capacity for repeat and high-volume programmes.
ISO 9001 and ISO 14001 certified quality and environmental management systems.
RoHS and REACH compliant insulation systems for European and North American markets.
Wire manufactured in accordance with IEC, NEMA, GB and JIS international standards.
Balanced cost and performance for the widest range of winding duties.
Good adhesion and pinhole resistance reduce winding rejection.
Heavy-gauge sizes up to 2.50 mm for large machines and transformers.

Product Features

Good adhesion and pinhole resistance for reliable winding.
Suitable for long-term operation across the 155 to 220 °C range.
Consistent dielectric strength at both fine and heavy gauges.
Good flexibility for bending and coil forming operations.
Abrasion-resistant film suitable for automatic winding equipment.
Available in multiple colours and insulation grades.

Typical Applications

General industrial motors with varying thermal class requirements.
Power and distribution transformers.
Generators and large rotating machines.
Compressors, pumps and power tools.
Ballasts, chokes and general-purpose electromagnetic coils.

Packing & Delivery

Spool Type	PT-15 – PT-270 plastic spool, or plywood spool for heavy-gauge and large-volume orders
Spool Weight	30 kg per spool (flat wire spools typically 30 – 150 kg)
Inner Packing	Moisture barrier wrap to protect the enamel film during transport
Outer Packing	Carton boxes on pallets, or plywood cases for sea freight
Customisation	Spool size, spool weight and pallet configuration can be tailored to your handling equipment

Quality Assurance & Certifications

Quality management system certified to ISO 9001; environmental management certified to ISO 14001.
Insulation systems compliant with RoHS and REACH directives for EU and North American supply chains.
Routine electrical and dimensional testing on every production batch before release.
Traceability maintained from raw conductor lot through to finished spool.
Products manufactured to IEC, NEMA, GB and JIS dimensional and performance standards.

Enamel Type Reference

The enamel designations below are the international equivalents of the Chinese GB codes. All five enamel systems are available on copper, aluminium and copper-clad aluminium conductors, and can be combined with the insulation grades and thermal classes shown on this page.

GB Code	International Code	Enamel Type	Thermal Class / Feature
QA	UEW	Polyurethane Enameled Wire	Direct solderable; 130 / 155 / 180 °C
QZ	PEW	Polyester Enameled Wire	130 / 155 °C
QZY	EIW	Polyesterimide Enameled Wire	180 °C
QXY	AIW	Polyamide-Imide Enameled Wire	200 / 220 / 240 °C
Q(ZY/XY)	EI/AIW (PEI/PAI)	Polyesterimide / Polyamide-Imide Composite	200 °C

Overseas customers normally work with the international codes (UEW, PEW, EIW, AIW). When specifying a grade, please state the international code together with the required thermal class, for example UEW 155 °C or EI/AIW 200 °C.

FAQ

Which thermal class should I select?

Select the class that exceeds your calculated winding hot-spot temperature with adequate margin. As a guide, Class 155 suits light-duty appliances, Class 180 covers most industrial motors, and Class 200 or 220 is used for higher-temperature machines and equipment. Our engineers can verify the selection against your duty cycle.

Is heavy-gauge wire available on plywood spools?

Yes. For conductors above approximately 2 mm we normally recommend plywood spools from 30 to 150 kg, which provide better mechanical support and are easier to handle during winding. Custom spool sizes are available on request.

Can you produce custom diameters, colours and thermal classes?

Yes. As a manufacturer operating two production bases, we can customise conductor diameter, enamel build, colour and thermal class to match your drawing or reference sample. Send us your specification and we will confirm feasibility and tooling lead time.

Do you provide samples for evaluation?

Yes. Standard specifications can be supplied as free samples for qualification testing; freight is normally arranged on a collect basis. Customised specifications may require a small sample charge, which is credited against your first bulk order.

What is the typical lead time?

Standard specifications are typically dispatched within 7 to 15 working days after order confirmation. Lead time for customised or high-volume orders is confirmed at the quotation stage.

How is the wire packed for export?

Wire is wound on plastic or plywood spools, individually wrapped to prevent moisture and mechanical damage, then packed in carton boxes on pallets or in plywood cases. Packing is suitable for both sea and air freight, and customised spool sizes and pallet configurations are available.

What documentation is supplied with each shipment?

Each shipment is accompanied by a packing list, commercial invoice and certificate of origin where applicable. Inspection and test reports covering conductor diameter, enamel thickness, elongation, flexibility and breakdown voltage can be provided on request.

Request a Quotation

Need Pricing or a Technical Datasheet?

Send us your conductor size, thermal class and quantity requirement. Our engineers will confirm the correct grade and enamel build, and issue a formal quotation within one working day.

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