SynTherm® – Insulating Materials SynTherm® NPN/80
SynTherm® NPN/80 is a flexible 3-ply insulation consisting of a polyester film with a calandered Nomex® layer with green strips.
The proven dielectric properties of the polyester film and the excellent mechanical and thermal properties of the outer Nomex® layers result in a high performance insulating material. The ability of the outer layers to absorb impregnants results in exceptional bonding between all winding components.
Application
SynTherm® NPN/80 is a cost-effective insulating material which can be installed in suitable insulating systems of class H (180 °C) and is used in electric motors as slot insulation, phase and wedges. SynTherm® NPN/80 is used as core, interlayer and final insulation for transformers.
Standards
- Suitable for class H (180 °C) systems
- Insulating material acc.IEC 60626
- UL approved, e.g. E247773
- Test standard IEC 60626-2
- Sample conditioning acc. to standard atmosphere 23/50
Delivery forms
Total thickness in μm:
220, 250, 300, 360, 420, 480
SynTherm® NPN/80 can be supplied:
in slit rolls from widths of 6 mm (depending on thickness) and above
in rolls approx. width of 900 mm
in sheets on request: approx. 600 x 900 mm, 900 x 1000 mm
Optional overall diameter of the slit rolls/ rolls
approx. 240, 330 or 450 mm.
Feathering:
depth approx. 1 - 12 mm, distance approx. 1 - 10 mm
from widths of 10 to 240 mm and thickness of 0.20 mm
Base
PET-film + calandered Nomex® layer on both sides
Technical data
| Property | Unit of measure | ||||||
|---|---|---|---|---|---|---|---|
| Total thickness | mm | 0.22 | 0.25 | 0.30 | 0.36 | 0.42 | 0.48 |
| Thickness tolerance max. | % | ± 15 | ± 15 | ± 15 | ± 15 | ± 10 | ± 10 |
| Film thickness | µm | 50 | 75 | 125 | 190 | 250 | 300 |
| Nomex® paper thickness | µm | 80 | 80 | 80 | 80 | 80 | 80 |
| Specific weight | g/m² | 220 | 255 | 325 | 420 | 500 | 570 |
| Elongation at break longitudinal* | % | 15 | 15 | 20 | 20 | 20 | 20 |
| Elongation at break transversal* | % | 20 | 20 | 25 | 25 | 25 | 25 |
| Tensile strength longitudinal | N/10 mm | 170 | 190 | 270 | 320 | 380 | 430 |
| Tensile strength transversal | N/10 mm | 140 | 180 | 200 | 250 | 300 | 300 |
| Property | Unit of measure | ||||||
|---|---|---|---|---|---|---|---|
| Total thickness | mm | 0.22 | 0.25 | 0.30 | 0.36 | 0.42 | 0.48 |
| Dielectric strength (unfold) | kV | 9 | 12 | 15 | 20 | 23 | 23 |
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