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Ensinger PEI
3M 8440 Silicone Rubber Cold Shrink Connector Insulators
Categories: Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)

Material Notes: 3M™ Cold Shrink Connector Insulators 8440 Series are open ended, silicone rubber, tubular sleeves. The sleeves are factory expanded and assembled on a removable supporting plastic core. Each rubber assembly is supplied fro field installation in this pre-stretched condition. As the core is unwound, the insulating sleeve shrinks to form a tight seal. Three sizes of Cold Shrink Insulators cover terminal lug barrels and three sizes of Cold Shrinks Insulators cover inline connectors. Each insulator type, collectively has an application range of 0.35” (8.86 mm) to 0.95” (24.13 mm) for installations on #6 AWG to 3/0 AWG.

Information provided by 3M

Vendors:
Available Properties
  • Density
  • Hardness, Shore A, ASTM D2240-75
  • Tensile Strength, Ultimate, ASTM D412-75
  • 100% Modulus
  • Tear Strength Test, ASTM D624B-73, [Mpa], Die B
  • Dielectric Strength, ASTM D149-75, 7 days @ 90°C in water
  • Dielectric Strength, ASTM D149-75
  
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Manufacturer Notes:
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Category Notes
Plastic

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