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SKU 7000005950
Legacy SKU 80610154603
UPC 00054007090564
Catalog Number 8428-12
Product Number 8428-12

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.

  • Specially designed for primary insulation of solid dielectric insulated wires and cable splicing rated to 1000 volts
  • Simple installation which requires no tools
  • Sealing of terminal lug barrels, conduit couplings and conduit-to-cable breakouts
  • Made of EPDM rubber which contains no chlorides or sulfur
  • Covers a wide range of cable cross sections
  • Withstands temperatures of -40 to 90 degC (-40 to 194 degF)
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On it's way to you Mid December, 2025  

Qty

Minimum Order 10 Items
Order Increment 10 Items
  Superior Electrical Insulation
  Immensely Durable
  Offers Solid Protection
  Lowest Price Per Item
Product Dimensions
Imperial Metric
Weight 0.4328 lbs
Width 9 in
Length 20 in
Height 1-1/2 in
Shipping Dimensions
Weight 4.94938 lb
Length 14.84252 in
Width 12.3622 in
Height 5.74803 in
Color Black

PRODUCT FAQ

  1. What is the 3M™ Cold Shrink Insulator 8428-12 used for?

    The 3M™ Cold Shrink Insulator 8428-12 is used to provide reliable insulation and protection of electrical connections up to 1 kV.

  2. Is this insulator easy to install?

    Absolutely! Our cold shrink design ensures that installation is quick, simple, and requires no special tools or heat sources.

  3. Can this insulator be used in harsh outdoor environments?

    Yes! This insulator offers excellent resistance to UV radiation, moisture, ozone, and other environmental factors. It has been tested and proven to provide reliable performance even in tough conditions.

  4. How many units come in each case of this product?

    Each case contains ten (10) individual units of the Cold Shrink Insulator 8428-12.

  5. Is there any additional information I should know about this product before making a purchase?

    A: Sure thing! Our team stands behind all our products with confidence but it's your choice ultimately when purchasing every time. But feel free contact us if you need more technical information or general recommendations to select a solution best fit for your needs.

For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
Product Description

The 3M Cold Shrink Connector Insulator 8420

The 3M Cold Shrink Connector Insulator 8420 is designed to provide you with long-lasting strength and force, ensuring a reliable and durable solution for your wire and cable splice jobs. With its moisture-tight seal, this product offers excellent protection for high-voltage, air-insulated connectors or lugs.

Whether you need to insulate secondary splices or perform direct buried or submersible, dig-in repairs, the 3M Cold Shrink Connector Insulator 8420 is the ideal choice. Its versatility and ease of use make it suitable for a wide range of applications.

This product is ANSI Certified, meeting the highest industry standards for quality and performance. Additionally, it is RoHS 2011/65/EU Compliant, ensuring its compliance with environmental regulations.

  • Long-lasting strength and force
  • Moisture-tight seal
  • Great protection for high-voltage, air-insulated connectors or lugs
  • Easy insulation for secondary splices and direct buried or submersible, dig-in repairs
  • ANSI Certified
  • RoHS 2011/65/EU Compliant
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