Nomex®/Mylar® insulating pipes, shrinkable, class F (155 °C)

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Coiled, shrinkable insulating conduits for use in lacquer-impregnated electric motors with temperature class F.

  • Reliable fixation due to shrinkage of 35%.
  • Inner diameters from 2.50 mm to 8.00 mm with wall thicknesses from 0.24 mm available
  • Rapid shrinkage within 10
  • Excellent dielectric strength and impact resistance.
  • Insulating pipe made of five layers of Mylar®/Nomex® for applications with temperature class F and continuous temperatures of up to 155 °C.
  • The materials are UL

The Mylar®/Nomex® insulating tube insulates and secures electrical connections in electric motors and other applications. Due to its high dielectric strength and impact resistance, this shrinkable insulating tube can also be used in demanding applications at short-term temperatures of up to 160 °C. Please call us for more information.

Art.-Nr.

Technical data

Outer laminate: DuPont™ Mylar®

Electrical properties
Properties of the base film Typical value Test condition Test method
37.5 HS Slide (37 μm)
dielectric strength) [kV] > 3,5 ASTM D 149

Physical properties
Properties of the base film Typical value Test condition Test method
37.5 HS Slide (37 μm)
Tear resistance
LR

QR

[Mpa] 190 Running direction (LR) ASTM D 882
260 Transverse direction (QR) ASTM D 882
Yield [m2/kg] 19,10
Tension module
LR

QR

[Mpa] 2,100 LR ASTM D 882
3,600 QR ASTM D 882
Yield point
LR

QR

[%] 170 LR ASTM D 882
110 QR ASTM D 882
Water vapor permeability [g/m2/24 h] 15 38°C, 90% relative humidity ASTM F 1249
Oxygen permeability [cm3/m2/24 h] 75 before shrinking ASTM D 3985
30-45 after shrinking ASTM D 3985

Optical properties
Properties of the base film Typical value Test method
Melting point 253-255°C (526-528 K) ASTM D 3148-82

 

Inner laminate: DuPont™ Nomex® Grade 411

 

Electrical properties
Properties of the film Film thickness Test condition Test method
0.130 mm 0.180 mm
Dielectric strength [kV/mm] 12 12 AC steep ascent ASTM D 149
Dielectric constant 1,3 1,3 1000 Hz ASTM D 150
Loss factor 0,005 0,005 1000 Hz ASTM D 150

Physical properties
Properties of the film Typical value Test condition Test method
Tear resistance
LR QR [N/cm] 17 28 ASTM D 828-60
9 17 ASTM D 828-60
Elongation
LR

QR

[%] 3,5 3,5 ASTM D 828-60
4,8 5 ASTM D 828-60

 

Item number:

IRSNMdddd/www/llll Example: IRSNM0100/005/0500 IRSNM = master number 0100 = 1.00 mm diameter 005 = 0.05 mm wall thickness 0500 = 500 mm length