SynTherm® – Insulating Materials SynTherm® NPN/50
SynTherm® NPN/50 is a flexible 3-ply insulation consisting of a polyester film with a calandered Nomex® layer with yellow 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/50 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 insulation and wedges. SynTherm® NPN/50 is used as core, interlayer und final insulation for transformers.
Standards
- Suitable for class H (180 °C) systems
- Insulating material according to 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:
130, 160, 180, 220, 240, 310, 370, 410, 470
SynTherm® NPN/50 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 or 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 0.24 mm
Base
PET-film + calandered Nomex® on both sides
Technical data
| Property | Unit of measure | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Total thickness | mm | 0.13 | 0.16 | 0.18 | 0.22 | 0.24 | 0.31 | 0.37 | 0.41 | 0.47 |
| Thickness tolerance max. | % | ± 15 | ± 15 | ± 15 | ± 15 | ± 15 | ± 15 | ± 10 | ± 10 | ± 10 |
| Film thickness | µm | 23 | 50 | 75 | 100 | 125 | 190 | 250 | 300 | 350 |
| Nomex® paper thickness | µm | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Specific weight | g/m² | 140 | 170 | 200 | 230 | 270 | 360 | 450 | 520 | 590 |
| Elongation at break longitudinal* | % | 15 | 15 | 15 | 15 | 20 | 20 | 20 | 20 | 20 |
| Elongation at break transversal* | % | 20 | 20 | 20 | 20 | 20 | 25 | 25 | 25 | 25 |
| Tensile strength transversal | N/10 mm | 80 | 90 | 105 | 120 | 150 | 200 | 300 | 310 | 350 |
| Tensile strength longitudinal | N/10 mm | 100 | 150 | 170 | 190 | 220 | 270 | 330 | 350 | 400 |
| Property | Unit of measure | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Dielectric strength* | kV | 6 | 8 | 11 | 12 | 14 | 19 | 23 | 23 | 23 |
| Total thickness | mm | 0.13 | 0.16 | 0.18 | 0.22 | 0.24 | 0.31 | 0.37 | 0.41 | |
| Total thickness | µm | 0.47 |
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