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NMN NPN 6640 Nomex®

NMN NPN 6640 Nomex

Properties

NMN NPN (6640) is made of two layers of Du Pont Nomex® paper laminated with one layer of polyester (Mylar®) film. It has good dielectric properties, high heat resistance and mechanical strength, is suitable for electric motors as slot, phase, turn-to-turn, liner insulation of class F.

Data Form

Item Unit Value
Structure Mil 222 232 242 252 272 2102 333 353 373
Structure Thickness Nomex® mm 0.050 0.050 0.050 0.050 0.050 0.050 0.075 0.075 0.075
PET Film mm 0.050 0.075 0.100 0.125 0.188 0.250 0.075 0.125 0.188
Nomex® mm 0.050 0.050 0.050 0.050 0.050 0.050 0.075 0.075 0.075
Nominal Thickness mm 0.17 0.19 0.22 0.24 0.30 0.37 0.24 0.30 0.35
Thickness Tolerance mm ±0.02
Nominal Area m²/kg 5.88 5.10 4.30 3.70 2.80 2.20 3.80 3.00 2.30
Specific Weight g/m² 170 196 230 270 357 450 263 330 425
Tensile Strength (min) MD N/cm 160 160 180 220 270 320 220 270 320
TD N/cm 90 110 130 180 200 250 180 200 250
Elongation (min) MD % 15 10 12
TD % 20 15 18
Breakdown Voltage (min) KV 8 12 14 16 18 24 16 18 24
Bond Strength at room temp No Delamination
Bond Strength at 180 + 2 C No Delamination, No Blister, No Adhesive Flow

Specification

  • 1. Standard width: 910mm, or slit into the width required Packing: In Carton
  • 2. Min Qty: 500kg each size in a lot.
  • 3. Shelf life: one year from the data of delivery. It can still be used if it is qualified by testing after one year according to above Technical Requirement.
Note:The values noted in above technical specification are given only for our customers' reference and should not be used in writing specifications.
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