3M 8447-3.2 8447-3.2 COLD SHRINK SI
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Manufacturer 3M
Mfg Catalog # 8447-3.2
North Coast Part # 674038


3M™ 8440 Series Cold Shrink Silicone Insulator is designed to provide primary electrical insulation for all solid dielectric insulated wire and cable splices rated to 1000V. The insulator is ideal for indoor and outdoor use, as well as overhead or cable tray applications. It withstands a wide temperature range of -66 to 500 degrees F (-55 to 260 degrees C).

3M™ 8440 Series Cold Shrink Silicone Insulator is an insulating sleeve that is specially formulated from high-temperature silicone rubber for moisture protection. It maintains resiliency and pressure, even after years of aging and exposure. This insulator ensures top moisture sealing for medium-voltage, air-insulated connectors and lugs. It offers resistance against acids, alkalis, fluid splashes, ozone, ultraviolet light and fire. This insulator is ideal for use in sheath repairs and electrical aircraft cables and it provides insulation for inline conductor transition connectors. RoHS 2011/65/EU Compliant.

  • Specially designed for primary insulation of solid dielectric insulated wires and cable splicing rated to 1000 volts
  • Simple installation which requires no tools
  • Suitable for insulating secondary splices, copper and aluminum conductors
  • Insulates cable or connectors within a diameter range of 0.49 - 0.95 in (12,4 - 24,1 mm)
  • Accommodates 1/0 to 3/0 AWG conductor sizes
  • Made of gray silicone rubber
  • Withstands operating temperatures of -67 to 500 degrees F (-55 to 260 degrees C)
  • Environmental sealing for communication and other non-electrical applications
  • RoHS 2011/65/EU Compliant
  • 12/case


  • 3M ID: 80610255251
  • Brand: 3M
  • Cable Type: Power Cable
  • Color: Grey
  • Conductor Material: Aluminum, Copper
  • Conductor Sizes: 1/0 AWG, 2/0 AWG, 3/0 AWG
  • Inner Diameter After Heat-Shrink: 12.4 mm
  • Inner Diameter Before Heat-Shrink: 24.1 mm
  • Length: 0.76
  • Length (Metric): 81.3 mm
  • Material: Silicone
  • Number of Conductors: 1
  • Operating Temperature (Celsius): -55 up to +260°C
  • Product Type: Splice
  • RoHS 2011/65/EU Compliant: Yes
  • RoHS EU Comments: RoHS 2011/65/EU compliant without exemption
  • Shielding Type: Tape Shield, UniShield®, Wire Shield
  • Shrink Ratio: 2:1
  • Splice Type: Cold Shrink
  • Trademark: 3M
  • Voltage: 1 kV

Legal Disclaimer

  • Manufacturing Origin: USA
  • The designation that a product is Manufactured in the USA means the product undergoes substantial transformation in one of our U.S. Manufacturing plants. Some products contain imported components.
  • Note: 3M products offered on a government contract that require country of origin representation must be certified by 3M Trade Compliance. Contact customer service at 800-245-3573 to request a certificate.


UPC 05400709487
GTiN 00054007094876
Size 1/0 AWG; 2/0 AWG; 3/0 AWG
Type Cold Shrink Splice
Material Silicone
Number of Conductors 1
Cable Type Power Cable
Family Brand Name 3M
Length 81.3 mm
Color Gray
Voltage 1 kV
Splice Type Cold Shrink
Product Type Splice
Conductor Size 1/0 AWG

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