NKT CPI Inner Cone Connectors
Easy to install, range-taking MV switchgear connections for EN 50180/50181 Sizes 2 and 3
- For interface type 2 and 3
- Conductor cross sections from 50 to 630 mm2
- Unique design with shear bolt connector for rapid installation
Our brand partner NKT, manufactures a wide range of cables and cable accessories and is the leading supplier of medium voltage screened connectors across much of Australasia.
NKT was the first to manufacture silicone rubber cable terminations and now has 50 years’ experience, in applications up to 400 kV.
CPI is a screened inner cone cable connector made of silicone rubber for connecting to medium voltage switchgear, RMUs and transformers fitted with bushings Size 2 or 3 according to EN 50180/50181.
The silicone rubber grade used in the CPI is durable, UV and ozone resistant, waterproof, non-flammable, self-extinguishing and heat resistant. Together with its excellent mechanical and electrical properties, this makes silicone rubber a preferred material for 11-33 kV inner cone connectors.
In addition to offering high quality electrical insulation and superior corona and tracking resistance, the elasticity of silicone rubber facilitates a wide application range for each CPI. So, one product can be used for many different conductor cross-sections.
This connection type delivers a compact and reliable in-line interface with XLPE and EPR cables.
Installation is straightforward and fast thanks to the design of the CPI. The unique shear-bolt connector simplifies assembly and provides assurance of correct fit; the multi-range stress cone allows realistic cable preparation tolerances; the unique connector casing eliminates the requirement for special tools.
The outer screen is a fully bonded conductive layer. The cable screen can be tested without disassembly. Operation is maintenance free.
Hiko Code | Interface Type | Continuous Nominal Current (A) | Application Range | Dimensions | ||||||
11 kV | 22 kV | 33 kV | Cross Section1 (mm2) | Insulation Diameter (mm) | Approx Length2 (mm) | |||||
Min | Max | Min | Max | |||||||
NKT2647151 | 2 | 800 | Yes |
|
| 35 | 70 | 12.7 | 19.2 | 190 |
NKT2647152 | Yes | Yes | Yes | 95 | 120 | 17.0 | 24.3 | |||
NKT2647153 | Yes | – | – | 120 | 185 | 17.0 | 24.3 | |||
NKT2647154 | – | Yes | Yes | 50 | 120 | 21.2 | 33.6 | |||
NKT2647155 | Yes | Yes | Yes | 120 | 185 | 21.2 | 33.6 | |||
NKT2647156 | Yes | Yes | – | 240 | 300 | 21.2 | 33.6 | |||
NKT2647157 | – | – | Yes | 150 | 185 | 28.9 | 40.03 | |||
NKT2647158 | – | Yes | Yes | 240 | 300 | 28.9 | 40.03 | |||
NKT2647251HNZ | 3 | 1250 | – | Yes | Yes | 95 | 120 | 21.2 | 33.6 | 195 |
NKT2647252HNZ | Yes | Yes | Yes | 120 | 185 | 21.2 | 33.6 | |||
NKT2647253HNZ | Yes | Yes | – | 240 | 300 | 21.2 | 33.6 | |||
NKT2647254HNZ | – | – | Yes | 150 | 185 | 28.9 | 37.8 | |||
NKT2647255HNZ | – | Yes | Yes | 240 | 300 | 28.9 | 37.8 | |||
NKT2647256HNZ | Yes | – | – | 400 | 500 | 28.9 | 37.8 | |||
NKT2647257HNZ | – | – | Yes | 300 | 34.0 | 45.6 | ||||
NKT2647258HNZ | Yes | Yes | Yes | 400 | 630 | 34.0 | 45.6 | |||
NKT2647259HNZ | – | – | Yes | 630 | 39.1 | 51.0 | ||||
NKT2647260HNZ | Yes | Yes | Yes | 8004 | 39.1 | 51.0 | 300 | |||
NKT2643798 | Yes | Yes | – | 800 | 45.5 | 57.8 | ||||
NKT2643799 | – | Yes | Yes | 8005 | 45.5 | 57.8 | ||||
Notes
- For round stranded conductors, designation RM
- From mounting face to end of stress cone
- Three core cables 44.0 mm
- Fits 800 mm2 round solid, designation RE
- Max conductor diameter 36 mm (fits 1000 mm2 round solid, designation RE)
Hiko Code | Description | Max system voltage (kV) | Notes |
NKTFPI2 | Final plug for Size 2 (set of 3) | 42 | Insulating plug for equipment interface |
NKTFPI3 | Final plug for Size 3 (set of 3) | 52 | Insulating plug for equipment interface |
NKTPASTE | Assembly paste (60 g tube) | – | Always use the correct assembly paste |
NKT MV Cable Accessories Catalogue
Other literature available on request
Reports, drawings, technical data sheets, installation instructions, O&M guidelines
