3M™ Cold Shrink Insulators are open-ended, tubular, EPDM 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.
3M™ Cold Shrink Insulators are designed using a unique cold shrink delivery system. They are supplied prestretched on a removable core for efficiency and ease of installation. Removal of the core after positioning allows the product 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.
| Applications | Insulation, mechanical protection, repair | |
| Brands | 3M | |
| Cable Shielding | Tape Shield, Non-shielded, UniShield®, Wire Shield | |
| Cable Type | Non-Shieled, Solid Dielectric Power Cable | |
| Case Quantity | 10 | |
| Conductor Material | Copper, Aluminum | |
| Conductor Sizes (Imperial) | 250 kcmil, 300 kcmil, 350 kcmil, 400 kcmil | |
| Conductor Sizes (Metric) | 185 mm² | |
| Halogen Free | No | |
| Inner Diameter After Shrink (Imperial) | 0.661 in | |
| Inner Diameter After Shrink (Metric) | 16.8 mm | |
| Inner Diameter Before Shrink (Imperial) | 1.382 in | |
| Inner Diameter Before Shrink (Metric) | 35.1 mm | |
| Material | EPDM Rubber | |
| Maximum Conductor Size (Imperial) | 394 kcmil | |
| Maximum Conductor Size (Metric) | 200 mm² | |
| Maximum Connector Length | 8.0 in | |
| Maximum Connector Length (metric) | 203.2 mm | |
| Maximum Operating Temperature (Celsius) | 90 °C | |
| Maximum Operating Temperature (Fahrenheit) | 194 null |