3M™ QTIII 92-EP Cold Shrink Single-Core MV Cable Termination Kit (12kV)
Product overview
3M™ QTIII 92-EP Cold Shrink Single-Core MV Cable Termination Kit (12kV)
The 3M QTIII 92-EP Cold Shrink MV Cable Termination Kit is a high-performance solution for Single-Core Indoor Cable Terminations, rated up to 12kV. Designed for polymeric insulated cables, this 3M Medium Voltage Termination Kit delivers reliable sealing, insulation and electrical performance across a broad conductor range. Each QTIII Cold Shrink body features integrated stress control, silicone insulation and a built-in moisture sealing mastic layer. This ensures consistent protection without the need for heat or special tools.
Part Numbers: 92-EP621-1, 92-EP631-1, 92-EP641-1, 92-EP656-1, 92-EP629-1, 92-EP639-1, 92-EP649-1, 92-EP623-1, 92-EP633-1, 92-EP643-1, 92-EP653-1.
Key Features & Benefits
- Rated for Medium Voltage applications up to 12kV (U_max)
- One-piece 3M QTIII Cold Shrink MV termination body with integrated stress control
- Built-in silicone mastic for reliable moisture sealing
- Covers a wide range of cable sizes and types
- No heating or flame required for installation
- No special tools or soldering required
- Constant Force springs for solderless earth connection
- Designed for copper wire-screened polymeric cables
- Certified to CENELEC HD 629.1 and IEC 60502-4 standards
- Supplied as a complete 3M MV Termination Kit for straightforward site installation
- Lightweight, compact design for use in confined or remote locations
3M QTIII – Simplified Medium Voltage Termination
This 3M QTIII 92-EP Cold Shrink Termination Kit offers a compact, high-reliability alternative to traditional heat-shrink terminations. It delivers consistent sealing and stress control in medium-voltage environments. With integrated silicone components and Cold Shrink technology, each QTIII Termination ensures fast, tool-free installation — minimising downtime and improving on-site safety.
Ideal for use on polymeric insulated cables in substations, industrial plants, infrastructure and utility networks, this 12kV Cold Shrink Termination provides durable protection and long-term performance. The 3M QTIII 92-EP range is a trusted solution across the energy and renewables sectors.
3M QTIII 92-EP – Order Information
| Kit Reference | Application Range Guide |
| 92-EP621-1 (92EP6211) | 50 – 95 mm2 |
| 92-EP631-1 (92EP6311) | 120 – 400 mm2 |
| 92-EP641-1 (92EP6411) | 500 – 630 mm2 |
| 92-EP656-1 (92EP6561) | 800 – 1000 mm2 |
| 92-EP629-1 (92EP6291) | 50 – 95 mm2 |
| 92-EP639-1 (92EP6391) | 120 – 300 mm2 |
| 92-EP649-1 (92EP6491) | 400 – 630 mm2 |
| 92-EP623-1 (92EP6231) | 50 – 95 mm2 |
| 92-EP633-1 (92EP6331) | 120 – 150 mm2 |
| 92-EP643-1 (92EP6431) | 185 – 400 mm2 |
| 92-EP653-1 (92EP6531) | 500 – 630 mm2 |
For Additional Information on the 3M QTIII 92-EP Cold Shrink Single-Core MV Cable Termination Kit (12kV), please consult the Technical Data Table or PDF File below.
*Technical Data subject to change without notice.
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+44 (0)1744 762 929Technical Data
| Kit Reference | Cable Type | Application Range Guide (mm²) | Diameter over Primary Insulation (mm) | Max. Lug Diameter Accepted (mm) |
| 92-EP621-1 | Copper Wire Screen | 50 - 95 | 16.3 - 27.4 | 30 |
| 92-EP631-1 | Copper Wire Screen | 120 - 400 | 20.5 - 38.9 | 39 |
| 92-EP641-1 | Copper Wire Screen | 500 - 630 | 26.7 - 45.7 | 45 |
| 92-EP656-1 | Copper Wire Screen | 800 - 1000 | 38.9 - 58.9 | 59 |
| 92-EP629-1 | Copper Tape Screen / Armour | 50 - 95 | 16.3 - 27.4 | 30 |
| 92-EP639-1 | Copper Tape Screen / Armour | 120 - 300 | 20.5 - 38.9 | 39 |
| 92-EP649-1 | Copper Tape Screen / Armour | 400 - 630 | 26.7 - 45.7 | 45 |
| 92-EP623-1 | Copper Tape Screen / Armour and/or Lead Sheath | 50 - 95 | 16.3 - 27.4 | 30 |
| 92-EP633-1 | Copper Tape Screen / Armour and/or Lead Sheath | 120 - 150 | 20.5 - 38.9 | 39 |
| 92-EP643-1 | Copper Tape Screen / Armour and/or Lead Sheath | 185 - 400 | 20.5 - 38.9 | 39 |
| 92-EP653-1 | Copper Tape Screen / Armour and/or Lead Sheath | 500 - 630 | 26.7 - 45.7 | 45 |