Nexans JTS 240/300 MV Heat-Shrink Multi Joint
Nexans JTS 240/300 MV Heat-Shrink Multi Joint

Product overview

Nexans JTS 240/300 MV Heat-Shrink Multi Joint

Nexans JTS 240/300 MV Heat-Shrink Multi Joint is a compact, resin-filled solution for 3-core medium voltage distribution cables. It combines Nexans’ proven JTS heat-shrink technology with a single recycled plastic shell. This Nexans Cable Joint acommodates two conductor ranges (70-240 mm² & 120-300 mm²), simplifying stockholding and installation for DNOs, ICPs and MV cable contractors.

Nexans JTS Joints Resized

Nexans JTS 240/300 Applications

This joint is suitable for a wide range of network configurations. This includes 3-core polymeric (XLPE) cables, PILC, PICAS and transition joints between PILC or PICAS and 3-core XLPE. It is ideal for buried distribution networks and is well suited to refurbishment, reinforcement and extension works across existing infrastructure.

Connector compatibility includes two split-bolt connectors where specified, shear-bolt connectors and other approved alternatives. This provides flexibility across various project or network requirements.

Key Benefits

  • One Shell, Two Joint Sizes – Covers Nexans 70-240 mm² and 120-300 mm² ranges, reducing inventory complexity
  • Supports All 3-Core Cable Types – Enables jointing across legacy PILC and modern XLPE cables, including transition joints
  • Proven JTS Heat Shrink Technology – Integrates stress control, insulation and conductive layers into a single triple-wall component
  • Electrical Field Control at Connector Area – A conductive rubber pad combined with an HK orange mastic layer controls the electrical field around the connector, smoothing voltage gradients and improving reliability
  • Resin-Filled Environmental Protection – Sealed shell provides moisture resistance, mechanical strength and impact protection
  • Simplified, Repeatable Installation – Clear workflow ensures consistent on-site jointing and reduces variability
  • Sustainable Design – Shell made from 100% recycled ABS (R10) and assembled in the UK with EU-sourced materials
  • Standards Compliance – Type-tested to IEC 60502-4 and Cenelec HD629.3 S1 standards

Installation Worfklow

  1. Select the correct conductor range (70–240 mm² or 120–300 mm²)
  2. Prepare cable ends in accordance with standard practice
  3. Install the specified connector (split-bolt, shear-bolt or other approved type)
  4. Apply JTS heat shrink components, including the tube, pad system, screen continuity and sheath restoration
  5. Close and seal the shell enclosure
  6. Fill with resin and allow it to cure as per instructions

Nexans JTS 240/300 – Technical Characteristics & Design

This joint uses Nexans’ established JTS platform to deliver compact dimensions and high electrical performance. Its integrated triple-wall heat shrink tube combines a stress control layer, insulation layer and conductive outer layer where applicable, reducing component count and simplifying installation.

Electrical field control at the connector area is provided by a conductive rubber pad combined with an HK orange mastic outer layer. Screen continuity components, along with the sealed plastic shell and resin filling, ensure robust environmental protection, moisture resistance and long-term durability.

For Additional Information on the Nexans JTS 240/300 MV Heat-Shrink Multi Joint, consult the PDF File or Technical Data Table below.

*Technical Data subject to change without notice.

FREE Technical Advisory Service
E-Tech Components UK Ltd maintains a free technical advisory service.
Contact us for enquiries concerning this and all other products: +44 (0) 1744 762 929

Technical Data

Cat. No Al in mm2 - rm(v) Round Stranded Al in mm2 - re Round Solid Al in mm2 - sm Round Stranded Cu in mm2 - rm(v) Round Stranded Cu in mm2 - sm Sector Stranded No. of Bolts L (mm) d₁ (mm) D (mm) B (mm) d₂ (mm) Tool/Outer and Inner Hexagon
SB70-240 SPLIT-BOLT 70-240 70-240 70-240 70-240 70-240 5 144 22 35 56 26 SW13 & SW6
SB120-300 SPLIT-BOLT 120-300 120-300 120-300 120-300 120-300 5 170 25 38 67 - SW13 & SW6

Product Video

Find out more about our products or becoming a supplier