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™, 7000031605, Insulator, Cold Shrink, Series: 8420, 0.4 in Diameter Minimum, 0.82 in Diameter Maximum, 8 in Length, 1400 psi Tensile Strength, Elongation: 7.5, 365 V/mil Dielectric Strength, EPDM Rubber, Black

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• Suitable for insulating secondary splices, direct buried or submersible and dig-in repairs
• Accommodates 2 to 1/0 awg conductor sizes
• Environmental sealing for communication and other non-electrical applications
• Good thermal stability
• Seals tight retains its resiliency and pressure even after prolonged years of aging and exposure
• Excellent wet electrical properties
• No mastic or tape required to seal
• Resists acids and alkalis resists ozone
• Physical protection and moisture sealing for air insulated connectors and lugs such as spacer cable and lug connections to bus bar
• Insulation of secondary splices, copper or aluminum conductors
• Quick, easy installation, simple installation which requires no tools
• Temperature range, withstands temperatures of -40 to 194 deg f (-40 to 90 deg c)
• Water-resistant, meets the water seal requirements of ansi c119.1
• TOUGH EPDM RUBBER FORMULATION - Withstands backfilling, for indoor and outdoor use, direct burial and submersible
• STABILITY - 5-year shelf life (from date of manufacture)