Low Voltage LV Industrial Cable Joints – Prysmian JST

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Low Voltage LV Industrial Cable Joints – Prysmian JST

Low Voltage LV Industrial Cable Joints – Prysmian JST

Prysmian JST industrial straight cable joints are used for LV cables with copper & aluminium conductors ranging from 1.5sqmm to 400sqmm and have transparent vacuum formed shells which offer greater working dimensions & interlocking flange seals.

JST low voltage cable joints include low hazard isocynate free JEM resin which has extremely low viscosity and enhanced adhesion and are designed to allow use with compression or mechanical connectors.

T&D can offer the full range of Prysmian cable joints for low voltage industrial cable jointing applications.

Prysmian JST Cable Joints

Technical Data

  • Low Voltage Straight Joints for 600/1000 Volt SWA cables to BS5467, BS6346 and IEC 502 – with Polymeric Insulation, aluminium or copper conductors.
  • Tested & Approved to BS EN 50393 & ENA ER C81
  • Constant Force Spring Armour Bonds Included

Prysmian JEM Resin Features & Benefits

  • Easier resin mixing by the cable jointer in “Twin Pack” totally enclosed mixing in a clear laminate sachet.
  • Extremely low mix viscosity allows void free cable joint filling.
  • JEM Resin is insensitive to moisture and will cure under water.
  • Enhanced adhesion to XLPE, MDPE, PVC & lead covered cables.
  • High flash point, non-flammable liquid – no special storage or transport requirements.
  • Not classified as irritating to the skin or eyes.
  • Does not cause skin sensitisation.


Prysmian Cable Joint Reference Dimensions
A B C Minimal Box Entry ∅ (D) Maximum Box Entry ∅ (E)
JST6 240mm 115mm 75mm 12mm 22mm
JST16 310mm 125mm 85mm 20mm 35mm
JST35 390mm 130mm 100mm 24mm 40mm
JST95 620mm 160mm 130mm 27mm 51mm
JST185 795mm 230mm 205mm 40mm 65mm
JST300 950mm 240mm 210mm 55mm 80mm
JST400 1100mm 275mm 260mm 56mm 92mm

Note: Prysmian JST joints are provided without connectors, compression connectors or mechanical connectors can be provided separately.

➡ Prysmian Cable LV MV HV Accessories | Cable Glands |  Cable Cleats | 11kV Terminations Heat Shrink

Prysmian JST LV Cable Joints - Dimensions

Prysmian JST LV Cable Joints – Dimensions

Nominal Area of Conductor Two Core Ref Three Core Ref Four Core Ref
1.5sqmm JST6 JST6 JST6
2.5sqmm JST6 JST6 JST6
4sqmm JST6 JST6 JST6
6sqmm JST6 JST6 JST6
10sqmm JST6 JST16 JST16
16sqmm JST16 JST16 JST16
25sqmm JST16 JST16 JST35
35sqmm JST35 JST35 JST35
50sqmm JST95 JST95 JST95
70sqmm JST95 JST95 JST95
95sqmm JST95 JST95 JST95
120sqmm JST185 JST185 JST185
150sqmm JST185 JST185 JST185
185sqmm JST185 JST185 JST185
240sqmm JST300 JST300 JST300
300sqmm JST300 JST300 JST300
400sqmm JST400 JST400 JST400

➡ For jointing all types of XLPE, EPR and PILC power, control and instrumentation cables in straight, branch or transition arrangement including zero halogen, fire resistant and hazardous areas see Resin Cable Joints