3M™ Cold Shrink Connector Insulators 8420 Series
3M Cold Shrink Connector Insulators 8420 Series are open-ended, tubular, rubber sleeves which are factory expanded and assembled onto a removable core. The core is removed after the tube has been positioned for installation over an inline connection, terminal lug, etc., allowing the tube to shrink and form a water-resistant seal. The insulating tube is made of EPDM rubber which does not contain chlorides or sulfur. Six diameter sizes will cover a range of cable up to 1000 volts for copper and aluminum conductors from 10 AWG through 1000 kcmil. To extend the useful life of this product in applications which are continuously exposed to high levels of ultra-violet radiation, overwrap with Scotch® Super 33+™ Vinyl Electrical Tape or Scotch® Self- Fusing Silicone Rubber Electrical Tape 70
- Simple installation; requires no tools
- Accommodates a wide range of cable sizes
- No torches or heat required
- Good thermal stability
- Seals tight; retains its resiliency and pressure even after prolonged years of aging and exposure
- Excellent wet electrical properties
- Tough rubber formulation withstands backfilling
- Water-resistant; Meets the water seal requirements of ANSI C119.1
- No mastic or tape required to seal
- Resists acids and alkalis; resists ozone
- Operating temperature range: -40°F to 194°F (-40°C to 90°C)