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EIWL Polyesterimide Enameled Aluminum Rectangular Wire | 180°C Grade 2 Heavy Build for Power Transformers & Motors

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EIWL Polyesterimide Enameled Aluminum Rectangular Wire | 180°C Grade 2 Heavy Build for Power Transformers & Motors

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Certification :	RoHS
Brand Name :	CHINGCUNG
Price :	4.00-6.00 USD/Kg
Supply Ability :	100 tons/Month
Payment Terms :	T/T
Model Number :	EIWL (QZYLB-2/180)
Delivery Time :	5-7 days

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EIWL Polyesterimide Enameled Aluminum Rectangular Wire | 180°C Grade 2 Heavy Build for Power Transformers & Motors

CHINGCUNG®

Special Enameled Wire · Since 2015

EIWL-2/180

Rectangular · Grade 2 Heavy Build

EIWL Enameled Aluminum
Rectangular Wire

Class 180 (H) Polyesterimide insulation · Optimized for large transformers & high-power motors

Weight -40%

vs copper equivalent

Grade 2

Double coating · IEC compliant

Technical Specs (Rectangular)

Model Number	EIWL-2/180
Thermal Class	180°C (H-Class)
Conductor	Aluminum (EC Grade)
Insulation	Modified Polyesterimide
Film Build	Grade 2 (Heavy / double coating)
Dimensions (T*W)	2mm to 5mm (T) × 4mm to 16mm (W)
Standards	IEC 60317-0-2, NEMA MW 36-C

Why Aluminum Rectangular?

~40% lighter than copper — reduces core weight
Excellent cost efficiency for large windings
Grade 2 insulation ensures high dielectric reliability
Better thermal dissipation in rectangular form
High space factor for transformers & reactors

Rectangular Advantage

Rectangular wires maximize copper/aluminum fill factor in confined slot spaces, reducing winding losses. Our EIWL series is specifically designed for large power transformers, traction motors, and high-current inductors.

Standard grade 2 build provides robust insulation for voltages up to several kV.

Aluminum vs. Copper — Strategic Choice

Aluminum magnet wire offers significant weight savings (approximately 40% lighter than copper for the same ampacity) and lower material cost, making it ideal for large-scale transformers, wind turbine generators, and industrial motors. With proper design (larger cross-section), aluminum windings perform reliably at 180°C thermal class. CHINGCUNG's advanced coating ensures excellent adhesion and uniform insulation even on rectangular profiles.

Standard Aluminum Bare Conductor Sizes (T × W)

Available thickness × width combinations — organized by conductor thickness (mm)

Thickness = 2.0 mm

2.0 × 4.0 mm 2.0 × 5.0 mm 2.0 × 6.0 mm 2.0 × 8.0 mm 2.0 × 10 mm

Thickness = 2.5 mm

2.5 × 4.0 mm 2.5 × 5.0 mm 2.5 × 6.0 mm 2.5 × 8.0 mm

Thickness = 3.0 mm

3.0 × 4.0 mm 3.0 × 5.0 mm 3.0 × 6.0 mm 3.0 × 8.0 mm 3.0 × 10 mm 3.0 × 12 mm

Thickness = 3.5 mm

3.5 × 6.0 mm 3.5 × 8.0 mm 3.5 × 10 mm

Thickness = 4.0 mm

4.0 × 6.0 mm 4.0 × 8.0 mm 4.0 × 10 mm 4.0 × 12 mm

Thickness = 5.0 mm

5.0 × 8.0 mm 5.0 × 10 mm 5.0 × 12 mm 5.0 × 14 mm 5.0 × 16 mm

✅ Wide thickness/width ratio supported — up to 1:5. Custom dimensions available upon request.

Thickness (T) mm	Width (W) mm	Min Film Increase (mm)	Max O.D. (T×W) Grade 2
2.00	4.00	0.12	2.24 × 4.24
2.00	8.00	0.12	2.24 × 8.24
2.50	6.00	0.14	2.78 × 6.28
3.00	10.00	0.15	3.30 × 10.30
3.50	8.00	0.15	3.80 × 8.30
4.00	12.00	0.16	4.32 × 12.32
5.00	12.00	0.17	5.34 × 12.34
5.00	16.00	0.17	5.34 × 16.34

*Grade 1 / Grade 3 available upon request. Film increase values are minimum per side for rectangular conductors. Tolerances follow IEC 60317-0-2.

≥300°C

Cut-through temp

IEC 60317-0-2

-40%

Weight vs copper

System cost reduction

2-5mm

Thickness range

Grade 2 heavy build

100T/M

Monthly capacity

Rectangular wires

Main Applications for EIWL

Power Transformers, Reactor Windings, Traction Motors, Wind Turbine Generators, High-current Inductors, Rectifier Transformers

Rectangular wire notes: Grade 2 is our standard heavy build for 180°C class. Grade 1 (single coating) or Grade 3 (triple coating) can be customized. For specific thickness/width ratios or special dimensions, contact our technical team. Aluminum rectangular wires offer substantial weight advantage for large-scale electromagnetic devices.

Specialized Lines

Dedicated rectangular enameling machines with precision roller coating. Online dimensional laser measurement & spark testing.

Logistics Advantage

Shanghai port — efficient export to global markets. Flexible MOQ and rapid sampling for large projects.

Custom Packaging

Spools, coils, or payoff packs for automated winding lines. OEM labeling & technical support.

CHINGCUNG · Shanghai Husu M&E Technology Co., Ltd
Address: Room 402, Building 13, No.518 Xinzhuan Rd, Songjiang District, Shanghai, 201612 China
Tel: +86 13621982708 | Email: leon.xu@chingcung.com
Web: https://chingcung.com

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Specifications subject to change. EIWL-2/180 complies with RoHS & REACH. Aluminum rectangular wire data for reference.

EIWL Polyesterimide Enameled Aluminum Rectangular Wire | 180°C Grade 2 Heavy Build for Power Transformers & Motors

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