3M Black Cold Shrink Cable Sleeve 67.8mm Sleeve Dia. x 457mm Length, 8420 Series

  • RS Stock No. 307-774
  • Mfr. Part No. 8429-18
  • Brand 3M
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): US
Product Details

8420 Series Cold Shrink Connector Insulators

8420 Series insulators are open ended tubular rubber sleeves. Factory expanded and assembled on a removable core they are supplied for field installation. Once positioned for installation the core is removed allowing the tube to shrink and create a waterproof seal.

Features and Benefits:

• Easily installed
• Suitable for various cable sizes
• Torches or heat not required
• Good thermal stability
• Tight seal
• Resilience and pressure remain consistent after years of ageing and exposure
• Excellent wet electrical properties
• Tough rubber formulation
• Waterproof
• Fungus resistant
• Acid and alkalis resistance
• Ozone and ultra violet light resistance


• Primary electrical insulation for all solid dielectric insulated wire (rubber and plastic) and cable splices with 1000 V rating
• Direct burial or submersed
• Indoor, outdoor or overhead use
• Provides physical and moisture sealing protection for high-voltage air insulated connectors and lugs. Examples - Spacer cable and lug connections to busbar
• Secondary splice copper or aluminium conductor insulation
• Service relocation
• Inline conductor transition connector insulation

Attribute Value
Sleeve Diameter 67.8mm
Shrunk Diameter 32.2mm
Colour Black
Sleeve Type Cold Shrink
Sleeve Length 457 mm
Material EPR
Series 8420
11 in stock for FREE next working day delivery
9 available from Europe for delivery within 1 working day(s)
Price Each
£ 59.01
(exc. VAT)
£ 70.81
(inc. VAT)
Per unit
1 - 14
15 - 49
50 +
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