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.
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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