SynTherm® – Insulating Materials Nomex® 410

Nomex® 410 is a synthetic electro-insulation paper constructed of a calendered, aromatic polyamide fibride flock composition.

Nomex® 410 is a Class H (180 °C) insulating material. Temperatures below 200 °C only slightly influence its electrical properties. The excellent mechanical properties can be extrapolated at much higher temperatures. Due to the polymer structure, Nomex® 410 can also be used at temperatures as low as -190 °C.

It has a high short-term dielectric strength; nevertheless, the permanent dielectric strength should not exceed 1.2 kV/mm. Nomex® 410 is compatible with all common resins, varnish, adhesive classes, as well as transformer liquids, oils and cooling agents. Common solvents may lead to slightly reversible moisture expansion. Nomex® 410 has a low flammability (UL 94V-0), moreover, it displays a very high level of beta and gamma-ray resistance.

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Application

High quality Nomex® 410 is used in almost all known applications for electrical insulating materials. Application ranges from AC and DC motors to large generators, wet and dry transformers and chokes, even with beta and gamma radiation exposure.

Standards

  • Class H (180 °C) insulating material.
  • UL listed (RTI mech. + elect. 220 °C)

Delivery forms

Film thickness in µm:
50, 80, 130, 180, 250, 300, 380, 510, 610, 760

Nomex® 410 can be supplied:

  • in slit rolls: depending on the material thickness
  • in rolls: 457 mm or 914 mm


Feathering:

  • depth approx. 1 - 12 mm, distance approx. 1 - 10 mm
  • from widths of 10 to 240 mm and thickness of 0.25 mm

Base

Calandered aromatic polyamide fibride composition.

Punched parts, bent and 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.

 

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Technical data

Mechanical
Property Unit of measure Test standard
Nominal thickness μm 50 80 130 180 250 300 380 510 610 760
Typical thickness µm 60 80 130 180 260 310 390 520 610 780 ASTM D-374
Specific weight g/m² 41 64 115 174 249 310 395 549 692 839 ASTM D-646
Density g/cm³ 0.72 0.81 0.88 0.95 0.96 1.00 1.02 1.06 1.13 1.08
Tensile strength longitudinal N/cm 43 68 141 227 296 380 462 610 728 816 ASTM D-828
Tensile strength transversal N/cm 19 34 71 116 161 185 252 374 500 592 ASTM D-828
Elongation at break longitudinal % 10 12 16 20 22 23 22 23 21 21 ASTM D-828
Elongation at break transversal % 7 9 13 15 18 18 16 18 16 17 ASTM D-828
Shrinkage at 300 °C longitudinal % 1.8 0.8 0.4 0.5 0.2 0.2 0.2 0.0 0.0 0.0
Shrinkage at 300 °C transversal % 0.0 0.0 0.0 0.1 0,0 0.1 0.1 0.0 0.0 0.0
Elmendorf tear strength longitudinal N 0.8 1.2 2.3 3.7 5.6 7.1 9.0 14.3 N/A N/A TAPPI 414
Elmendorf tear strength transversal N 1.5 2.4 4.8 7.2 10.6 13.7 16.7 24.8 N/A N/A TAPPI 414
Thermal
Property Unit of measure Test standard
Nominal thickness μm 50 80 130 180 250 300 380 510 610 760
Thermal conductivity mW / (m.K) 103 114 123 143 139 N/A 149 157 N/A 175
Electrical
Property Unit of measure Test standard
Nominal thickness μm 50 80 130 180 250 300 380 510 610 760
Short-time AC kV/mm 18 22 28 34 33 34 33 32 32 27 ASTM D-149
Dielectric constant at 60 Hz 1.6 1.6 2.4 2.7 2.7 2.9 3.2 3.4 3.7 3.7 ASTM D-150