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SynTherm® – Insulating Materials

SynTherm® NP/50

SynTherm® NP/50 is a flexible 2-layer insulation made of polyester film with calandered Nomex® overlay.

Attributes

SynTherm® NP/50 is a high-class insulation material due to the proven electrical properties of the polyester film and the excellent mechanical and thermal properties of the outer Nomex® overlays. The outer overlays’ impregnant absorptivity allows excellent bonding of all winding components.

Application

SynTherm® NP/50 is an economic option and suitable for use as slot insulation, wedges, and phase insulation in electric motors.
In transformers it can be used as core, layer, or cover insulation.

Standards
  • Class F (155 °C) acc. to IEC 60085
  • Insulation material to IEC 60626
  • RoHS conform to 2011/65/EU
  • Test standard IEC 60626-2
  • Sample conditioning acc. to standard atmosphere 23/50
Delivery forms

Total thickness µm:
80, 100, 140, 160, 180, 240, 300, 350, 410.
Other total thickness on request.

SynTherm® NP/50 available in delivery formats:

  • tapes starting from 4 mm width
  • rolls with approx. 900 mm width
  • on request: approx. 600 x 900 mm
  • 900 x 1000 mm


Outer diameters of tapes/ rolls optionally approx. 240/ 330/ 450 mm.

Feathering:

  • depth approx. 1 - 12 mm, distance approx. 1 - 10 mm
  • as of 10 mm up to 240 mm width and 0.20 mm thickness
Base

PET-film + aramid paper

Technical data
Mechanical
Total thickness  Film thickness  Nomex® paper thickness  Specific weight  Tensile strength longitudinal*  Tensile strength transversal*  Elongation at break longitudinal*  Elongation at break transversal*  Dielectric strength 
Unit of measure            
mm  0.08 0.10 0.14 0.18 0.24 0.30
µm  23 50 75 125 190 250
µm  50 50 50 50 50 50
g/m²  85 120 160 220 320 395
N/mm²  100 100 100 110 110 100
N/mm²  80 80 80 80 90 100
15 15 15 20 25 30
20 20 20 40 40 40
kV  5 7 10 14 18 21

SynTherm® is a registered trademark of SynFlex.
Nomex®, Kapton®, KAPTON® are registered trademarks of E.I. Du Pont de Nemours and Company.