3M™ 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.
Relying on science-based performance, 3M™ Cold Shrink QT-III Termination Kit 7620-T, 7620-S, 7640-T, 7650-T, 7680-S, and 7690-T Series provide electrical solutions that help meet your needs and promote efficient operations. 3M is committed to providing dependable electrical products that address everyday challenges in the field. Pioneered by 3M and implemented globally, cold shrink technology helps speed up production without sacrificing performance because operations take less time and can be performed without a heating source. This product family delivers long-lasting performance and simple installation, helping you keep your operations on schedule.
| Voltage | 5 kV, 8 kV, 15 kV | |||
| Conductor Sizes (Imperial) | 4/0 AWG, 250 kcmil, 300 kcmil, 350 kcmil, 400 kcmil, 450 kcmil, 500 kcmil, 600 kcmil, 700 kcmil, 750 kcmil | |||
| Insulation Outer Diameter (Metric) | 21.082 mm, 21.336 mm, 21.59 mm, 21.844 mm, 22.098 mm, 22.352 mm, 22.606 mm, 22.86 mm, 23.114 mm, 23.368 mm, 23.622 mm, 23.876 mm, 24.13 mm, 24.384 mm, 24.638 mm, 24.892 mm, 25.146 mm, 25.4 mm, 25.654 mm, 25.908 mm, 26.162 mm, 26.416 mm, 26.67 mm, 26.924 mm, 27.178 mm, 27.432 mm, 27.686 mm, 27.94 mm, 28.194 mm, 28.448 mm, 28.702 mm, 28.956 mm, 29.21 mm, 29.464 mm, 29.718 mm, 29.972 mm, 30.226 mm, 30.48 mm, 30.734 mm, 30.988 mm, 31.242 mm, 31.496 mm, 31.75 mm, 32.004 mm, 32.258 mm, 32.512 mm, 32.766 mm, 33.02 mm, 33.274 mm, 33.528 mm, 33.782 mm, 34.036 mm, 34.29 mm, 34.544 mm, 34.798 mm, 35.052 mm, 35.306 mm, 35.56 mm, 35.814 mm, 36.068 mm, 36.322 mm, 36.576 mm, 36.83 mm, 37.084 mm, 37.338 mm, 37.592 mm, 37.846 mm, 38.1 mm, 38.354 mm, 38.608 mm, 38.862 mm | |||
| Breakout Boot | No | |||
| Insulation Outer Diameter (Imperial) | 0.83 in, 0.84 in, 0.85 in, 0.86 in, 0.87 in, 0.88 in, 0.89 in, 0.9 in, 0.91 in, 0.92 in, 0.93 in, 0.94 in, 0.95 in, 0.96 in, 0.97 in, 0.98 in, 0.99 in, 1 in, 1.01 in, 1.02 in, 1.03 in, 1.04 in, 1.05 in, 1.06 in, 1.07 in, 1.08 in, 1.09 in, 1.1 in, 1.11 in, 1.12 in, 1.13 in, 1.14 in, 1.15 in, 1.16 in, 1.17 in, 1.18 in, 1.19 in, 1.2 in, 1.21 in, 1.22 in, 1.23 in, 1.24 in, 1.25 in, 1.26 in, 1.27 in, 1.28 in, 1.29 in, 1.3 in, 1.31 in, 1.32 in, 1.33 in, 1.34 in, 1.35 in, 1.36 in, 1.37 in, 1.38 in, 1.39 in, 1.4 in, 1.41 in, 1.42 in, 1.43 in, 1.44 in, 1.45 in, 1.46 in, 1.47 in, 1.48 in, 1.49 in, 1.5 in, 1.51 in, 1.52 in, 1.53 in | |||
| Cable Shielding | Concentric Neutral (CN), Jacketed Concentric Neutral (JCN) |
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.