Kapton-Wrapped Rectangular Copper Conductor
ISO-CU-KPT-F240
CROSS-SECTION & LAYERS
Polyimide Film (Kapton®) Insulated Wires
The core and insulation layers are shown to scale as a representation; refer to the datasheet for exact thickness and tolerance values.
APPLICATIONS
Where Is This Product Used?
The gold area in the scenes shows where the conductor sits in the machine.
ALSO Traction motors
Aerospace and defence generators
High-temperature transformers
Nuclear and radiation-environment windings
Product Description
Polyimide film is one of the insulation materials offering the highest dielectric strength per unit thickness, and it preserves its mechanical properties over a wide temperature range. This product is produced by winding polyimide film helically with half-overlap onto the conductor; so at every point of the conductor there are at least two layers of film.
The coating is fixed by baking after winding thanks to the heat-activated adhesive layer on the film. The resulting insulation is both thin and extremely durable: it resists short-term over-temperatures, radiation and chemical attack. The Class 240 (C) continuous operating temperature is a level standard enamels cannot reach.
The films used comply with the requirements for electrical-purpose plastic film under IEC 60674; the thermal-class definition is based on IEC 60085. On request an additional glass-fibre wrap or impregnating varnish can be applied over the film.
Applications
Traction motors, aerospace and defence generators, high-temperature transformers, nuclear and radiation-environment windings.
Related Products
Glass-Fibre Insulated Rectangular Copper Conductor
ISO-CU-CEL-F180
Glass-Fibre Insulated Rectangular Aluminium Conductor
ISO-AL-CEL-F180Technical Documentation
| Conductor Material | Electrolytic Copper (Cu-ETP, 99.9%) |
| Standard | IEC 60674 |
| Conductor Size | 2 – 16 mm |
| Thickness / Grade | 0.80 – 5.60 mm |
| Surface | Annealed |
| Product Code | ISO-CU-KPT-F240 |
| Thermal Class | Class 240 (C) |
| Build Increase | 0.80 – 5.60 mm |
| Conductor Section | 1.50 – 90.00 mm² |
| Insulation Type | Polyimide (Kapton) film, half-overlap |
| Winding Type | Helical tape winding, thermally fixed |
| Test Certificate | IEC 60851 test report + film declaration of conformity |
Kapton Insulation Structure
| Winding Layer | Tape Width (mm) | Overlap Ratio (%) | Total Build Increase (mm) | Thermal Class |
|---|---|---|---|---|
| 1 layers polyimide film | 12 | 50 | 0.10 | Class 240 (C) |
| 2 layers polyimide film | 12 | 50 | 0.20 | Class 240 (C) |
| 3 layers polyimide film | 15 | 50 | 0.30 | Class 240 (C) |
| 2 layers film + 1 layers glass fibre | 15 | 50 | 0.35 | Class 220 (R) |
| 4 layers polyimide film | 20 | 50 | 0.40 | Class 240 (C) |
Our Kapton-Wrapped Rectangular Copper Conductor product is supplied in accordance with internationally accepted manufacturing and inspection standards. Dimensional tolerances, material chemical analysis and mechanical values meet the requirements of the relevant standard.
- Manufacturing standard: IEC 60674
- Conductor material: Electrolytic Copper (Cu-ETP, 99.9%)
- Thermal class: Class 240 (C)
- Wall thickness: 0.80 – 5.60 mm
- Diameter range: 2 – 16 mm
- Visual inspection and dimensional control are carried out before shipment.
If your project requires a different standard, you can consult our technical team for alternative products.
On request, the products we supply are shipped together with an EN 10204 3.1 material certificate. Our quality management system and product documents are updated regularly; batch-based traceability is provided.
Communicating your certificate request at the quotation stage speeds up the shipment process.
ISO 9001:2015 Quality Management System
ISO 14001 Environmental Management System
ISO 45001 Occupational Health and Safety Management System
EN 10204 3.1 Material Certificate
IEC 60317 Declaration of Conformity
IATF 16949 Automotive Quality Management System
REACH Declaration of Conformity
RoHS Declaration of Conformity
Note: The values in the datasheet are nominal. For requests outside the standards and dimensions above, reach us through the quote form; non-catalogue dimensions are planned according to the production schedule.