Composite Enameled Aluminum Wire (EI/AIW-BP, 180/200/220 °C)

Product Overview

The AIW-BP composite enameled aluminum wire uses a dual-layer insulation system: a polyester-imide base coat overcoated with polyamide-imide. This composite construction raises the thermal class while substantially improving resistance to corona discharge, voltage spikes and inverter harmonics, which are the principal failure modes in motors driven by variable-frequency controllers.

Combining that insulation performance with an aluminium conductor gives a lightweight, cost-efficient wire for inverter-driven motors, transformers and renewable-energy equipment. It is supplied from 0.13 to 3.50 mm in thermal classes 180, 200 and 220.

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.
• Composite polyester-imide / polyamide-imide insulation for corona and inverter duty.
• Aluminium conductor reduces weight by approximately 60% at equal volume.
• Suitable for PWM-driven motors exposed to steep voltage transients.

Product Features

• Composite two-layer insulation with high thermal class.
• Improved resistance to corona discharge and voltage spikes.
• Good chemical and refrigerant resistance.
• High breakdown voltage and reliable dielectric performance.
• Lightweight aluminium conductor for reduced rotating mass.
• Stable performance under continuous inverter operation.

Typical Applications

• Inverter-driven and variable-frequency motors.
• Corona-resistant windings for high-voltage equipment.
• New-energy and traction motor windings.
• Wind power and photovoltaic generation equipment.
• Transformers and reactors where weight reduction is critical.

Packing & Delivery

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.

FAQ

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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.