Mylar®/Nomex® end caps, shrinkable, class F (155 °C)

€0,00

Cost-effective insulation of wire ends in lacquer-impregnated electric motors of temperature class F

  • Reliable fixation due to shrinkage of 35%.
  • Available with inner diameters from 2.50 mm to 65 mm and wall thicknesses from 0.240
  • Fast shrinking within 10 seconds.
  • Excellent dielectric strength and
  • Five-ply composite structure made of Dupont™ Mylar® and
  • Nomex®-
  • The slides are UL approved.
  • Resistant to most oils and refrigerants.
  • Suitable for applications in temperature class F at
  • Continuous temperatures of 155°C..

The shrinkable Mylar®/Nomex® end caps insulate and secure electrical connections in electric motors and other applications. They have a high dielectric strength and impact resistance and are also suitable for demanding applications in temperature class F. They can withstand temperatures of up to 160°C for short periods. By attaching end caps, short circuits caused by wire residues can be avoided. They are mainly used in the windings of encapsulated and open electric motors.

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 film (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
[Mpa] 2’100 LR ASTM D 882
3’600 QR ASTM D 882
Yield strength [(%] 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 (526-528K) 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 10009 Hz ASTM D 150

Physical properties
Properties of the film Typical value Test condition Test method
Tensile strength
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:

IESMNdddd/www/llll Example: IESMN0100/005/0050 IESMN = master number 0100 = 1.00 mm inside diameter 005 = 0.05 mm wall thickness 0050 = 50 mm inside length (without protrusion)

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