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  7. 3M™ Cold Shrink Connector Insulators 8420 and 8430 Series

3M™ Cold Shrink Connector Insulators 8420 and 8430 Series

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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

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Details

Highlights
  • 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 EPDM rubber which contains no chlorides or sulfur
  • Covers a wide range of cable cross sections
  • Withstands temperatures of -40 to 90 degC (-40 to 194 degF)
  • Environmental sealing for communication and other non-electrical applications

3M™ Cold Shrink Connector Insulators 8420 and 8430 Series are EPDM tubes designed using a unique Cold Shrink delivery system. Products are supplied pre-stretched on a removable core for efficiency and easy of installation. Removal of the core (unwind) after positioning allows the tube to shrink into position forming a moisture-tight seal. The live memory action of the specially formulated material ensures a permanent, durable environmental seal and insulation.

3M™ Cold Shrink Connector Insulators 8420 and 8430 Series are useful as primary electrical insulation for all solid dielectric (rubber and plastic) insulated wire and cable splicing rated to 1000 V, both indoor and outdoor. They are often good in providing physical protection and environmental sealing for communication and other non-electrical applications, including sheath repairs. Operating temperature range is -40°C to 90°C (-40°F to 194°F). In applications where the product is continuously exposed to UV radiation it is good to overwrap with e.g. 3M™ Scotch® Super 33+™ Vinyl Electrical Tape or 3M™ Scotch® Self-Fusing Silicone Rubber Electrical Tape 70.

Typical Properties

Applications

Insulation, mechanical protection, repair

Brands

3M™

Breaking Strength (Imperial)

26.3 Kilogram per Centimetre

Cable Type

Cable with plastic and rubber insulation, Power Cable

Case Quantity

10

Conductor Material

Aluminum, Copper

Conductor Sizes

10 mm², 35 mm², 120 mm², 456 mm², 1013 mm²

Conductor Sizes (Imperial)

1 AWG, 2 AWG, 4 AWG, 6 AWG, 8 AWG, 1/0 AWG, 10 AWG, 2/0 AWG, 3/0 AWG, 4/0 AWG, 250 kcmil, 900 kcmil, 1000 kcmil, 1250 kcmil, 1500 kcmil, 1750 kcmil, 2000 kcmil

Dielectric Strength (V/mil)

14.3 kV / mm

Halogen Free

No

Inner Diameter After Heat-Shrink

2.5 mm, 6.1 mm, 7.8 mm, 8.6 mm, 11.7 mm, 13.9 mm, 15.2 mm, 16.8 mm, 17.5 mm, 21.3 mm, 24 mm, 32.2 mm, 42.6 mm

Inner Diameter After Shrink (Imperial)

0.098 in, 0.24 in, 0.31 in, 0.339 in, 0.461 in, 0.547 in, 0.598 in, 0.661 in, 0.689 in, 0.839 in, 0.95 in, 1.268 in, 1.27 in, 1.677 in

Inner Diameter Before Heat-Shrink

14.3 mm, 20.9 mm, 23.9 mm, 30.1 mm, 33 mm, 35.1 mm, 38.1 mm, 49.3 mm, 53.8 mm, 67.8 mm, 72.4 mm, 93.7 mm

Inner Diameter Before Shrink (Imperial)

0.56 in, 0.823 in, 0.941 in, 1.185 in, 1.3 in, 1.382 in, 1.5 in, 1.94 in, 2.118 in, 2.67 in, 2.85 in, 3.689 in

Material

EPDM Rubber

Maximum Conductor Size

2.5 mm², 7.8 mm², 10.1 mm², 13.9 mm², 16.8 mm², 24 mm², 32.2 mm², 42.6 mm², 120 mm², 1013 mm²

Maximum Conductor Size (Imperial)

14 AWG, 15.39 kcmil, 19.93 kcmil, 27.43 kcmil, 33.16 kcmil, 47.36 kcmil, 63.55 kcmil, 84.07 kcmil, 250 kcmil, 2000 kcmil

Maximum Connector Length

3.0 in, 5.0 in, 8.0 in, 14.0 in

Maximum Connector Length (metric)

76.2 mm, 127.0 mm, 203.2 mm, 355.6 mm

Maximum Operating Temperature (Celsius)

90 ℃

Maximum Operating Temperature (Fahrenheit)

194 ℉

Minimum Conductor Size

6 mm², 35 mm², 70 mm², 456 mm², 633 mm²

Minimum Conductor Size (Imperial)

2 AWG, 10 AWG, 2/0 AWG, 900 kcmil, 1250 kcmil

Minimum Operating Temperature (Celsius)

-40 ℃

Minimum Operating Temperature (Fahrenheit)

-67 ℉, -40 ℉

Model

Cold-shrink

Number of Conductors

1

Operating Temperature (Celsius)

-40 up to +90°C

Product Type

Cold Shrink, Splice

Relaxed Tube Length

6 in, 8 in, 9 in, 12 in, 18 in

Relaxed Tube Length (metric)

0.152 m, 0.229 m, 0.279 m, 0.305 m, 0.406 m, 0.457 mm, 203.2 m, 228.6 mm, 304.8 mm, 457.2 mm

Shielding Type

Tape Shield, Wire Shield, Non-shielded, UniShield®

Shrink Ratio

2:1

Smallest Saleable Unit

Each

Splice Type

Cold Shrink

UL Approval

No

Voltage

1 kV

Voltage Application

Low Voltage

Wall Thickness after Shrinking

1.4 mm, 2.8 mm, 3.8 mm, 4.1 mm, 4.3 mm, 4.6 mm

With Inner Glue

No

Overall Diameter (Metric)

14.3 mm, 20.9 mm, 23.9 mm, 33 mm, 38.1 mm, 49.3 mm, 53.8 mm, 67.8 mm, 93.7 mm, 94 mm

Overall Length (Imperial)

5.984 in, 6 in, 8 in, 9 in, 10.984 in, 12 in, 15.984 in, 18 in

Overall Length (Metric)

152 mm, 203.2 mm, 228.6 mm, 229 mm, 279 mm, 304.8 mm, 305 mm, 406 mm, 457 mm, 457.2 mm

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Similar products

Conductor Sizes (Imperial) 1 AWG, 2 AWG, 4 AWG, 6 AWG, 8 AWG, 1/0 AWG, 10 AWG, 2/0 AWG, 3/0 AWG, 4/0 AWG, 250 kcmil, 900 kcmil, 1000 kcmil, 1250 kcmil, 1500 kcmil, 1750 kcmil, 2000 kcmil
Inner Diameter After Shrink (Imperial) 0.098 in, 0.24 in, 0.31 in, 0.339 in, 0.461 in, 0.547 in, 0.598 in, 0.661 in, 0.689 in, 0.839 in, 0.95 in, 1.268 in, 1.27 in, 1.677 in
Inner Diameter Before Shrink (Imperial) 0.56 in, 0.823 in, 0.941 in, 1.185 in, 1.3 in, 1.382 in, 1.5 in, 1.94 in, 2.118 in, 2.67 in, 2.85 in, 3.689 in
Overall Length (Metric) 152 mm, 203.2 mm, 228.6 mm, 229 mm, 279 mm, 304.8 mm, 305 mm, 406 mm, 457 mm, 457.2 mm
Minimum Operating Temperature (Fahrenheit) -67 ℉, -40 ℉
Conductor Material Aluminum, Copper