Enamelled Round Copper Wire - Class 220 (R)
ISO-CU-EMY-R220
CROSS-SECTION & LAYERS
Flat - Round Enamelled Winding 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 Hermetic compressor motors
Traction motors
High-temperature generators
Converter-driven industrial motors
Product Description
Class 220 (R) enamelled wire is used in machines where the continuous operating temperature is high or short-term overloads recur frequently. The coating system consists of a base layer with high thermal stability and a polyamide-imide top layer; this structure raises the softening temperature and heat-shock resistance.
Grade 3 build increase raises the inter-turn voltage strength and is therefore preferred in motors driven by frequency converters and in applications with high impulse voltage. Increasing the build lowers the fill factor somewhat; this trade-off must be evaluated together with the thermal calculation in the winding design.
Produced to the general requirements of IEC 60317-0-1; the thermal-class definition is given on the basis of IEC 60085 and the thermal-endurance assessment rests on the IEC 60216 approach.
Applications
Hermetic compressor motors, traction motors, high-temperature generators, converter-driven industrial motors.
Related Products
Enamelled Round Copper Wire
ISO-CU-EMY-R180
Enamelled Rectangular Aluminium Conductor
ISO-AL-EMY-F200
Enamelled Round Aluminium Wire
ISO-AL-EMY-R180Technical Documentation
| Conductor Material | Electrolytic Copper (Cu-ETP, 99.9%) |
| Standard | IEC 60317-0-1 |
| Conductor Size | 0.5 – 3.15 mm |
| Thickness / Grade | Grade 2 / Grade 3 |
| Surface | Bright |
| Product Code | ISO-CU-EMY-R220 |
| Thermal Class | Class 220 (R) |
| Build Increase | Grade 2 / Grade 3 mm |
| Conductor Section | 0.20 – 7.80 mm² |
| Insulation Type | High-temperature enamel + polyamide-imide |
| Winding Type | DIN 46395 makara |
| Test Certificate | IEC 60851 test report + thermal endurance assessment |
Thermal Class Comparison
| Thermal Class (IEC 60085) | Continuous Operating Temperature (°C) | Typical Insulation Structure | Typical Application |
|---|---|---|---|
| Class 155 (F) | 155 | Polyester emay | General-purpose motor and transformer windings |
| Class 180 (H) | 180 | Polyesterimit emay | Industrial motors, generators |
| Class 200 (N) | 200 | Polyesterimit + polyamid-imit | High-density machines, transformers |
| Class 220 (R) | 220 | High-temperature enamel + polyamide-imide | Compressor and traction motors |
| Class 240 (C) | 240 | Polyimide / mica-based structures | Special high-temperature applications |
Our Enamelled Round Copper Wire - Class 220 (R) 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 60317-0-1
- Conductor material: Electrolytic Copper (Cu-ETP, 99.9%)
- Thermal class: Class 220 (R)
- Wall thickness: Grade 2 / Grade 3
- Diameter range: 0.5 – 3.15 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.