8420 Coldshrink Splice Dia 2.5 to 21mm

Part #: 3M 80610921928

Unique 3M Cold Shrink delivery system ensures fast, straightforward and consistent installation without compromising long term reliabilityNo special tools, heat or site permits are required to install Cold Shrink, making it well suited for in-field applicationsConstant radial pressure for optimised environmental performanceNo flame required means there is less chance of damamging the cable material
  • Overview
  • Specifications
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  • Overview

3M Cold Shrink Insulators offer a safe, easy to install method of insulating, sealing and protecting connectors, cable, hoses, fittings and conduit. The EPDM rubber insulators are supplied pre-stretched on a removable core. Removal of the core (unwinding) after positioning the splice allows the product to shrink into position.

The live memory action of the specially formulated material provides a permanent, durable environmental seal and insulation, with an operating temperature range of -40⁰ to 90⁰C.

  • Unique 3M Cold Shrink delivery system ensures fast, straightforward and consistent installation without compromising long term reliability
  • No special tools, heat or site permits are required to install Cold Shrink, making it well suited for in-field applications
  • Constant radial pressure for optimised environmental performance
  • No flame required means there is less chance of damamging the cable material
  • No cooling time is necessary before energising the cable
  • Seals tight, and retains its resiliency and pressure even after prolonged years of aging and exposure
  • Contains range-extending adapters (without adapters, 8424-8 and 8425-8 products are identical)
  • Fast, straightforward installation
  • Operating temperature range from -40 to 90°C.
  • Contains range-extending adaptors
Suggested Applications
  • Primary electrical insulation for all solid dielectric (rubber and plastic) insulated wire and cable splicing rated to 1000 volts
  • Good for repairs and environmental sealing for communication and other non-electrical applications
  • Ideal for sealing wireless communication tower connections and exposed coaxial interfaces
  • Suitable for indoor, outdoor, underground and submerged applications
  • Specifications
Applications Insulation, mechanical protection, repair
Brand 3M
Conductor Material Aluminum, Copper
Conductor Sizes 1 AWG, 1/0 AWG, 10 AWG, 2 AWG, 4 AWG, 6 AWG, 8 AWG
Diametre (Metric) 20.9 mm
Inner Diametre After Heat-Shrink 2.5 mm
Inner Diametre Before Heat-Shrink 20.9 mm
Length 203 mm
Material EPDM-rubber
Maximum Connector Length (metric) 76.2 mm
Maximum Wire Gauge 20.9mm²
Minimum Wire Gauge 2.5mm²
Number of Conductors 1
Operating Temperature (Celsius) -40 up to +90°C
Product Type Cold shrinking
RoHS 2011/65/EU Compliant Yes
RoHS EU Comments RoHS 2011/65/EU compliant without exemption
*Important RoHS information
Shielding Type Non-shielded, Tape Shield, UniShield®, Wire Shield
Shrink Ratio 2:1
Size 6 - 50 mm²
Splice Type Cold Shrink
Trademark 3M
Voltage Application Low Voltage
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