3MTM Cold Shrink QT-III Termination Kit 7620-T, 7620-S, 7640-T, 7650-T, 7680-S, and 7690-T Series are designed for indoor use to control the electrical field stress distribution and help promote a void-free seal on jacketed concentric neutral power cables. These kits are made with non-tracking silicone rubber insulation, providing a secure seal and long-lasting durability. The robust construction includes high dielectric-constant material and silicone rubber insulation. Cold shrink technology helps facilitate a simple installation, eliminating the need for force-fitting and promoting adaptation to confined workspaces. These kits are engineered to meet varying voltage requirements ranging from 5 to 35 kV. For comprehensive technical information about a specific product in this series, please consult a 3M expert.