Enameled Round Aluminum Wire (UEW/PEW/EIW/AIW, 155-220 °C)

Thermal Class: 155/180/200/220 °C
Dimension: 0.13-2.5 mm; AWG 7-36
Application: transformers, reactors, traction motors

Estimated Delivery:Oct 31 - Nov 04

Enameled Round Aluminum Wire (PEW/EIW/AIW)

Technical Specifications

155 °C (Class F) / 180 °C (Class H) / 200 °C (Class C) / 220 °C (Class C+) 0.13 – 2.50 mm IEC 60317 / NEMA MW 1000 / GB/T 6109

Product Name	Enameled Round Aluminum Wire
Conductor	Aluminium, EC grade, Al ≥ 99.7%
Diameter Range	0.13 – 2.50 mm
Thermal Class	155 °C (Class F) / 180 °C (Class H) / 200 °C (Class C) / 220 °C (Class C+)
Insulation Type	UEW(Polyurethane ),PEW (polyester), EIW (polyester-imide), modified polyester-imide, AIW (polyamide-imide)
Insulation Grade	Grade 1, Grade 2, Grade 3
Colour	Natural, 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 spool, 10 kg per spool

Product Overview

Enameled round aluminum wire uses high-purity aluminium as the conductor in place of copper, reducing conductor weight by roughly 60% at equivalent volume. This makes it an economical and lightweight choice for transformers, reactors and large rotating machines where weight and material cost are decisive, and where winding space rather than conductor cross-section is the limiting factor.

Huaya Fa (Foshan) Technology Co., Ltd. supplies enamelled round aluminium wire from 0.13 to 3.50 mm across the 155, 180, 200 and 220 thermal classes, using polyester, polyester-imide and polyamide-imide insulation systems.

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.
Conductor weight reduced by approximately 60% compared with copper at equal volume.
Lower and more stable raw material cost for price-sensitive transformer programmes.
Larger conductor cross-section for the same mass, improving slot fill in fixed winding windows.

Product Features

High breakdown voltage and excellent dielectric strength.
Good resistance to common solvents, refrigerants and transformer oils.
Adhesion and flexibility suitable for high-speed automatic winding.
Abrasion-resistant enamel film produced on vertical enamelling lines.
Consistent diameter tolerance for reliable automated insertion.
Available in multiple thermal classes to match your insulation system.

Typical Applications

Oil-immersed and dry-type power transformers.
Reactors, inductors and chokes.
Traction motors and generators.
Welding machines and large low-voltage electromagnetic windings.
Modern instruments and general electrical appliance windings.

Packing & Delivery

Spool Type	PT-25 plastic spool, or plywood spool for heavy-gauge and large-volume orders
Spool Weight	10 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

Why choose aluminium instead of copper?

Aluminium reduces conductor weight by around 60% at equal volume and is less exposed to copper price volatility. It is preferred where weight, material cost and winding-space utilisation matter more than conductivity per unit cross-section.

Are aluminium and copper versions interchangeable in the same design?

They are not directly interchangeable because conductivity and cross-section differ. Our engineers can advise on the equivalent aluminium cross-section for an existing copper design, including any adjustment to slot fill and winding tension.

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.

Send Inquiry

Enameled Round Aluminum Wire (UEW/PEW/EIW/AIW, 155-220 °C)

Thermal Class: 155/180/200/220 °C
Dimension: 0.13-2.5 mm; AWG 7-36
Application: transformers, reactors, traction motors

get a quote

Technical Specifications

Product Overview

Key Advantages

Product Features

Typical Applications

Packing & Delivery

Quality Assurance & Certifications

Enamel Type Reference

FAQ

Need Pricing or a Technical Datasheet?

Can I customize the packaging?

Collapsible tab heading?

How can I get a quotation?

Can I get a sample first? How long does it take?

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