3M™ Cold Shrink Silicone Insulators 8440 Series
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Details
Highlights
- Highly elastic tight sealing silicone rubber retains its resiliency and pressure even after prolonged years of aging and exposure
- Simple installation with no tools required
- Operating temperature range -55°C to +260°C (-66°F to 500°F)
- Waterproof, meets the requirements of ANSI C 119.1
- Resists moisture, acids, alkalies, ozone, ultraviolet light, fluid splashes, and fire
3M™ Cold Shrink Silicone Insulators 8440 series is made of highly elastic Silicone rubber and is used both for the electrical insulation of polymeric or rubber-insulated cables up to 1 kV and for the protection and sealing of non-electrical applications. It also reliably protects connections between cables with different diameters.
The 3M™ Cold Shrink Silicone Insulators 8440 series is suitable both for indoor and outdoor applications as well as for underground or underwater installation. In addition, the Cold Shrink tubing ensures flexible kink protection and can also be used for cable sheath repairs. Quick and easy assembly by pulling out the supporting core enables reliable installation without special tools, such as heating burners. After assembly, the cold shrink tubing ensures reliable protection against moisture thanks to its constant radial contact pressure. Resistant to fire, excellent thermal stability and its resistance to acids, alkalis, ozone and UV radiation guarantee long-term functionality.
Typical properties
| Application | Insulation, mechanical protection, repair |
| Brands | 3M™ |
| Cable Shielding | UniShield®, Wire Shield, Tape Shield |
| Cable Type | Power Cable, Solid Dielectric Cables, Cable with plastic and rubber insulation |
| Conductor Material | Aluminum, Copper |
| Conductor Sizes (Imperial) | 1 AWG, 2 AWG, 4 AWG, 6 AWG, 1/0 AWG, 2/0 AWG, 3/0 AWG |
| Conductor Sizes (Metric) | 16 mm², 35 mm², 95 mm² |
| Halogen Free | No |
| Inner Diameter After Shrink (Imperial) | 0.299 in, 0.37 in, 0.488 in |
| Inner Diameter After Shrink (Metric) | 7.6 mm, 9.4 mm, 12.4 mm |
| Inner Diameter Before Shrink (Imperial) | 0.559 in, 0.72 in, 0.949 in |
| Inner Diameter Before Shrink (Metric) | 14.2 mm, 18.3 mm, 24.1 mm |
| Material | Silicone |
| Maximum Conductor Size (Imperial) | 59 kcmil, 157 kcmil, 1000 kcmil |
| Maximum Conductor Size (Metric) | 30 mm², 50 mm², 95 mm² |
| Maximum Operating Temperature (Celsius) | 260 ℃ |
| Maximum Operating Temperature (Fahrenheit) | 500 ℉ |
| Minimum Conductor Size (Imperial) | 2 AWG, 27 kcmil, 118 kcmil |
| Minimum Conductor Size (Metric) | 14 mm², 35 mm², 50 mm² |
| Minimum Operating Temperature (Celsius) | -55 ℃ |
| Minimum Operating Temperature (Fahrenheit) | -67 ℉ |
| Model | Cold-shrink |
| Number of Conductors | 1 |
| Operating Temperature (Celsius) | -55 up to +260°C |
| Product Color | Gray |
| Product Type | Splice, Cold Shrink |
| Relaxed Tube Length | 2 in, 2.5 in, 3.2 in, 6.5 in, 7.5 in, 8 in |
| Relaxed Tube Length (Metric) | 0.051 m, 0.081 m, 0.165 m, 0.19 m, 63.5 mm, 203.2 mm |
| Shrink Ratio | 2:1 |
| Splice Type | Cold Shrink |
| UL Approval | No |
| Units per Case | 12.0 |
| Voltage | 1 kV |
| Voltage Application | Low Voltage |
| Wall Thickness after Shrinking | 2.8 mm |
| With Inner Glue | No |
| Overall Diameter (Metric) | 14.2 mm, 14.3 mm, 18.3 mm, 24.1 mm |
| Overall Length (Imperial) | 2.5 in, 6.5 in, 8 in |
| Overall Length (Metric) | 51 mm, 63.5 mm, 81 mm, 165 mm, 190 mm, 203.2 mm |
Resources
Regulatory Data Sheet
Document Number: MSDS_4097226_US_EN_RDS
(PDF)
Similar products
| Conductor Sizes (Imperial) | 1 AWG, 2 AWG, 4 AWG, 6 AWG, 1/0 AWG, 2/0 AWG, 3/0 AWG | |||
| Inner Diameter After Shrink (Imperial) | 0.299 in, 0.37 in, 0.488 in | |||
| Inner Diameter Before Shrink (Imperial) | 0.559 in, 0.72 in, 0.949 in | |||
| Overall Length (Metric) | 51 mm, 63.5 mm, 81 mm, 165 mm, 190 mm, 203.2 mm | |||
| Overall Length (Imperial) | 2.5 in, 6.5 in, 8 in | |||
| Inner Diameter After Shrink (Metric) | 7.6 mm, 9.4 mm, 12.4 mm |
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The designation that a product is Manufactured in the USA means the product undergoes substantial transformation in one of our U.S. Manufacturing plants. Some products contain imported components.
Note: 3M products offered on a government contract that require country of origin representation must be certified by 3M Trade Compliance. Contact customer service at 800-245-3573 to request a certificate.
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.
