SynTherm® – Insulating Materials SynTherm® NP/50

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

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.

Download datasheet

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