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.

Download datasheet

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

Punched parts, bent & formed parts

We offer a wide range of punched and formed parts: Rolls, individual parts unsorted, sorted or stacked, adhesive on one or both sides, non-adhesive, with or without a grip tab.

 

More about punched parts

Find your right electrical insulation materials with us!

You have questions according to our electrical insulation materials or want to send an inquiry?
Our sales representative will be happy to help you.

Technical data

Mechanical
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
Electrical
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