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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 AluminumRectangular Wire Class 180 (H) Polyesterimide insulation · Optimized for large transformers & high-power motors Weight -40% vs copper equivalent Grade 2 Double coating · IEC compliant ...
Product Description
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CHINGCUNG® Special Enameled Wire · Since 2015 |
EIWL-2/180 |
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Rectangular · Grade 2 Heavy Build EIWL Enameled Aluminum Class 180 (H) Polyesterimide insulation · Optimized for large transformers & high-power motors |
Weight -40% vs copper equivalent Grade 2 Double coating · IEC compliant |
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Technical Specs (Rectangular)
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Why Aluminum Rectangular?
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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.
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Thickness (T) mm |
Width (W) mm |
Min Film Increase (mm) |
Max O.D. (T×W) Grade 2 |
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2.00 |
4.00 |
0.12 |
2.24 × 4.24 |
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2.00 |
8.00 |
0.12 |
2.24 × 8.24 |
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2.50 |
6.00 |
0.14 |
2.78 × 6.28 |
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3.00 |
10.00 |
0.15 |
3.30 × 10.30 |
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3.50 |
8.00 |
0.15 |
3.80 × 8.30 |
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4.00 |
12.00 |
0.16 |
4.32 × 12.32 |
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5.00 |
12.00 |
0.17 |
5.34 × 12.34 |
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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.
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≥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 LinesDedicated rectangular enameling machines with precision roller coating. Online dimensional laser measurement & spark testing. |
Logistics AdvantageShanghai port — efficient export to global markets. Flexible MOQ and rapid sampling for large projects. |
Custom PackagingSpools, coils, or payoff packs for automated winding lines. OEM labeling & technical support. |
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CHINGCUNG · Shanghai Husu M&E Technology Co., Ltd |
Inquire now → |
Specifications subject to change. EIWL-2/180 complies with RoHS & REACH. Aluminum rectangular wire data for reference.
Product Details
Mr. Leon Xu
- Email:leon.xu@chingcung.com
- Tel:+86-13621982708
- WhatsApp:8613621982708
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