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3M Cold Shrink Insulator 8427-12 is an EPDM rubber cold shrink tube designed to provide primary insulation and environmental sealing for solid dielectric insulated wires and cable splices rated up to 1 kV. It installs by hand without tools or heat to form a water resistant seal for indoor and outdoor applications, including direct burial and submersible use.
| Part Number | 8427-12 |
| Product Type | Cold Shrink Insulator |
| Material | EPDM Rubber |
| Color | Black |
| Voltage Rating | 1 kV |
| Overall Length | 12.0 in |
| Outer Diameter Range | 17.5-35.1 mm |
| Inner Diameter Before Shrink | 1.382 in |
| Inner Diameter After Shrink | 0.661 in |
| Conductor Size Range | 250-400 kcmil (125-200 mm2) |
| Conductor Material | Aluminum, Copper |
| Maximum Connector Length | 8.0 in |
| Operating Temperature Range | -40 Degree F to 194 Degree F |
| Halogen Free | No |
| RoHS | RoHS 2011/65/EU compliant without exemption |
| Application | Insulation, mechanical protection, repair |