3M 8427-12 Cold Shrink Insulator 250–400 kcmil (125–200 mm), 10 per case (10 pack)

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3M™ Cold Shrink Connector Insulators 8420 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 contains no 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 Tape or Scotch® Self-Flushing silicone Rubber Tape 70. 

This splice meets requirements of ANSI C119-1 and Western Underground Guide 2.14 for secondary splices rated up to 1 kV.

Features:  

•  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. 
•  Improved, tougher rubber formulation to withstand 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. 

Links:  Spec Sheet