3M Cold Shrink Insulator 8429-12, 900-1000 kcmil (500 mm²)
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3M Cold Shrink Insulator 8429-12, 900-1000 kcmil (500 mm²)

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$68.99 USD & FREE Shipping.
Extended Handling May Be Required
  • Specially designed for primary insulation of solid dielectric insulated wires and cable splicing rated to 1000 volts
  • Simple installation which requires no tools
  • Sealing of terminal lug barrels, conduit couplings and conduit-to-cable breakouts
  • Made of black EPDM rubber
  • Made of EPDM rubber which contains no chlorides or sulfur
  • Withstands temperatures of -40 to 194 degrees F (-40 to 90 degrees C)
  • Environmental sealing for communication and other non-electrical applications
Overview
3M™ Cold Shrink Connector Insulators 8420 and 8430 Series are designed using 3M’s proprietary cold shrink delivery system. Products are supplied prestretched on a removable core for efficiency and ease of installation. Removal of the core (unwinding) after positioning the splice allows the product to shrink into position forming a moisture-tight seal. The live memory action of the specially formulated EPDM material promotes a permanent, durable environmental seal and insulation, with a typical operating temperature range from -40–194°F (-40–90°C). The 8420 insulator meets requirements of ANSI C119-1 and Western Underground Guide 2.14 for secondary splices rated up to 1 kV. Applications: Primary electrical insulation for all solid dielectric (rubber and plastic) insulated wire and cable splicing rated to 1000 V. Good for repairs and environmental sealing for communication and other non-electrical applications. Important: Use insulation jacket or connector O.D. for final ordering criteria. * Mastic pads included for cable O.D. build-up. ** Kit contains adapters. *** These sizes are listed for availability only and are not designed to be used as primary insulation. These tubes are for conduit sealing and breakouts. ****Maximum connector length: 5.625” “Point of Purchase” packaging designated by “P”. Example: 8423-6P
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3M Cold Shrink Insulator 8429-12, 900-1000 kcmil (500 mm²)

Specifications
General Information
Brand
3M™
Model
Cold-shrink
Product Type
Cold Shrink
Splice Type
Cold Shrink
Country Of Origin
United States
California Residents
Proposition 65 Warning
Dimensions and Specifications
Conductor Sizes (Imperial)
1000 kcmil
Conductor Sizes (Metric)
456 mm²
Inner Diameter After Shrink (Imperial)
0.839 in
Inner Diameter After Shrink (Metric)
21.3 mm
Inner Diameter Before Shrink (Imperial)
2.85 in
Inner Diameter Before Shrink (Metric)
72.4 mm
Maximum Conductor Size (Imperial)
63.55 kcmil
Maximum Conductor Size (Metric)
32.2 mm²
Maximum Connector Length
8.0 in
Maximum Connector Length (Metric)
203.2 mm
Maximum Operating Temperature (Celsius)
90 Degree Celsius
Maximum Operating Temperature (Fahrenheit)
194 Degree Fahrenheit
Minimum Conductor Size (Imperial)
900 kcmil
Minimum Conductor Size (Metric)
456 mm²
Minimum Operating Temperature (Celsius)
-40 Degree Celsius
Minimum Operating Temperature (Fahrenheit)
-40 Degree Fahrenheit
Operating Temperature (Celsius)
-40 up to +90°C
Overall Diameter (Metric)
67.8 mm
Overall Length (Metric)
304.8 mm
Relaxed Tube Length
12 in
Relaxed Tube Length (Metric)
304.8 mm
Voltage
1 kV
Voltage Application
Low Voltage
Wall Thickness After Shrinking
4.6 mm
Other Details
Cable Shielding
UniShield®
Halogen Free
No
Number Of Conductors
1
Shrink Ratio
2:1
With Inner Glue
No
Usage Information
Application
Insulation, mechanical protection, repair
Material and Composition
Conductor Material
Copper
Material
EPDM Rubber
Color and Appearance
Product Color
Black
Certifications and Standards
UL Approval
No
Packaging and Shipping
Case Quantity
10
Resources
Datasheet
Why would you use this tool for ?
About manufacturer
3M

3M is one of many examples of the classic American success story. They went into business to mine a specific mineral and they didn’t have any luck with that, so instead, upon receiving lemons, they made life take the lemons back by innovating and creating new, unexpected products that eventually led to success. That spirit of innovation continues to this day as they have developed safety equipment, specialty construction and testing equipment, PPE, accessories for visibility and so much more! As avid tool users, handymen, construction workers and more, there are certainly many 3M products that will be of use to you Tool Junkies out there!

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