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| Categories | Rectangular Copper Enameled Wire |
|---|---|
| Type: | Insulated |
| Color: | Natural |
| Conductor type: | Solid |
| Price: | 15.00-45.00 USD/Kg |
| MOQ: | 30 Kgs |
| Delivery Time: | 5-8 Working days |
| Shape: | Rectangular |
| Cut-through: | ≥320°C (excellent overload resistance) |
| Insulation material: | Polyamide-Imide |
| Standard: | IEC, NEMA, GB, JIS |
| Conductor material: | Copper |
| Payment Terms: | T/T |
| Certification: | RoHS |
| Application: | Heating, Transformer, Motor |
| Place of Origin: | Zhejiang |
| Thermal class: | 220-240 centigrade |
| Packaging Details: | PL-1 / PL-4 / P-5 / P-10 / P-30 / PC400 |
| Supply Ability: | 100 Tons/Month |
| Model Number: | AIW (QXYB-2/220) |
| Brand Name: | CHINGCUNG |
| Size: | 0.0125 mm² – 25 mm² |
| Packing: | Plastic spools, Cartons, Pallets |
| Company Info. |
| Shanghai Husu M&E Technology Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
EVMAGNETWIRE.COM | CHINGCUNG® Enamelled Wire
Class 220 Polyamide-Imide Insulation | Grade 2 Heavy Build | GB Standard QXY | Optimized for High-Efficiency Coils & EV Applications
Featured: Grade 2 Heavy Build (Rectangular) AIW rectangular wires with Grade 2 polyamide-imide insulation provide superior dielectric strength, excellent thermal endurance (Class 220), and outstanding chemical resistance. Ideal for formed coils, dry-type transformers, and EV motor windings. Grade 1 & Grade 3 available upon request. | ✓ Grade 1 / Grade 3 optional |
Technical Highlights
| Electrical & Mechanical
|
Typical Dimensions (AIW Rectangular - Grade 2 Heavy Build)
a x b (mm) | Tolerance (mm) | Min. film build Gr.2 (mm) | Max. outer dimension (mm) | Typical Breakdown (V) |
1.00 x 2.00 | ±0.03/±0.05 | 0.045 | 1.10 x 2.10 | ≥2800 |
1.20 x 2.50 | ±0.03/±0.05 | 0.050 | 1.32 x 2.62 | ≥3300 |
1.50 x 3.00 | ±0.04/±0.06 | 0.050 | 1.62 x 3.12 | ≥3500 |
1.80 x 4.00 | ±0.04/±0.06 | 0.055 | 1.93 x 4.13 | ≥4000 |
2.00 x 5.00 | ±0.04/±0.07 | 0.055 | 2.14 x 5.14 | ≥4500 |
2.50 x 6.30 | ±0.05/±0.08 | 0.060 | 2.65 x 6.45 | ≥5000 |
3.00 x 8.00 | ±0.06/±0.10 | 0.065 | 3.18 x 8.18 | ≥5500 |
Representative dimensions for Grade 2 heavy build rectangular copper wire. Custom sizes (0.0125 mm² – 25 mm²) and film grades available. Rounding radius of corners can be tailored.
Why AIW Rectangular Wire for High-Density Windings?
Higher Copper Fill Factor 20-30% more copper in same winding area vs round wire → lower I²R losses | Class 220 Polyamide-Imide Excellent thermal stability, cut-through ≥320°C, ideal for harsh conditions | Grade 2 Heavy Build Enhanced turn-to-turn insulation, ideal for high-voltage EV & inverter applications | Precision Rectangular Profile Excellent shape retention & winding stability for edge-wound coils |
AIW rectangular enameled copper wires are specially engineered for applications where space efficiency and thermal performance are critical. Polyamide-imide insulation (Class 220) offers outstanding resistance to heat, chemicals, and mechanical stress. Compared to traditional round wires, the rectangular cross‑section maximizes copper fill within a given slot or window, significantly reducing winding losses. CHINGCUNG’s advanced die-forming and multi‑pass annealing ensure tight dimensional control with uniform Grade 2 insulation. The heavy build (Grade 2) adds a reliable dielectric barrier, suitable for traction motors, dry-type transformers, high-frequency inductors, and EV charging systems.
Differentiators (Custom Attributes)
| Commercial & Logistics
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Spool Specifications (for AIW Rectangular Wire)
Spool Type | d1 [mm] | d4 [mm] | I1 [mm] | I2 [mm] | Spool weight [g] | Nom. net wire weight [kg]* | Spools per box |
PL-1 | 80 | 20 | 120 | 100 | 240 | 0.5 | 8 |
PL-4 | 125 | 25 | 190 | 160 | 860 | 4 | 4 |
P-5 | 160 | 20 | 114 | 90 | 290 | 4 | 4 |
P-10 | 200 | 25 | 134 | 110 | 500 | 8 | 2 |
P-30 | 300 | 31 | 160 | 130 | 1290 | 25 | 1 |
PC400 | 400 | 52 | 260 | 224 | 2500 | 60 | 1 |
* Valid for copper wire. For other metals (aluminum, CCA), please inquire. Other spool types available upon request.
Key Application Fields
EV traction motors, Dry-type transformers, High-frequency inductors, Charging station coils, Railway propulsion, Solar inverter chokes, UPS & industrial power supplies, Wind turbine generators
Technical Insight: Grade 2 on Rectangular Wire – Why it matters
For rectangular wires, insulation uniformity across the flat sides and corners is crucial. CHINGCUNG’s AIW series with Grade 2 heavy build ensures a minimum film increase of 0.045–0.065 mm (depending on dimensions) which provides up to 40% higher breakdown voltage compared to Grade 1. This is especially critical for inverter-fed motors where voltage spikes stress the winding insulation. Polyamide-imide insulation also offers excellent resistance to refrigerants, oils, and harsh chemicals. We supply AIW wires with automatic concentricity control for demanding high-voltage platforms.
CHINGCUNG – Engineered for Excellence
§ Dedicated rectangular wire production lines with in-line dimension laser gauges. § ISO 9001 quality system for high-performance winding wires. § Monthly capacity 100+ tons of special enameled wires (round + rectangular). § Strategic location in Shanghai with fast air/sea freight and global logistics partners. § Free engineering support for customized profiles, hybrid insulation & custom film builds. | Get in touch – EVMAGNETWIRE.COM Shanghai Husu M&E Technology Co., Ltd Tel: +86 13621982708 |
Frequently Asked Questions – AIW Rectangular Wire
Q1: Can I order a sample of AIW Grade 2 rectangular wire for prototype? A: Yes. Samples as small as 10–20 Kgs with full test report (breakdown voltage, dimensions, pinhole) can be produced within 30 days. | Q2: What is the advantage of Grade 2 vs Grade 1 on rectangular wire? A: Grade 2 adds approximately 0.015~0.025 mm more insulation per side, boosting voltage endurance & reducing risk of turn-to-turn failure in high-stress windings. |
Q3: Can you customize aspect ratio and corner radius? A: Absolutely. We support custom rectangular dimensions, rounded corners, and flexible film builds to match your coil former. | Q4: Is AIW suitable for oil-immersed transformers? A: Yes. Polyamide-imide insulation has excellent compatibility with transformer oils and refrigerants, widely used in hermetic and oil-filled applications. |
Ready to upgrade to high-efficiency rectangular windings? | Request datasheet → leon.xu@chingcung.com |
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