Energy networks demand components that are not only reliable but tailored to each project’s unique requirements. Jumper Cables and Test Leads are essential for connecting transformers, switchgear, motors and other equipment safely and efficiently. At E-Tech Components, we offer fully custom pre-assembled jumper cables (low & medium voltage jumpers) that are designed to meet your exact specifications. From cable length and insulation type to connector interfaces and screening, you can have it your way! Carry on reading this blog to learn more about our Nexans Euromold products and the customisation options available.
What are Jumper Cables and Test Leads?
Jumper Cables (low or medium voltage) are pre-assembled or prefabricated cables (jumpers) with separable connectors or terminations at each end. They provide permanent connections between electrical equipment like transformers, switchgear and industrial machinery. Pre-assembled jumper cables save time on installation and reduce the risk of errors on-site.
Electrical Test Leads are temporary cables used for diagnostic or maintenance purposes. Engineers often use a test lead kit or test lead set to safely perform measurements on transformers, motors and other installations without interrupting operations.
Side A
 |
Nexans Interface A Separable ConnectorsThese bolted connectors terminate MV-HV XLPE or EPR insulated cables up to 24 kV into Interface A bushings on medium and high voltage equipment. This includes transformers, switchgear and motors. They are suitable for copper wire or tape screened, armoured , braided or unarmoured cables, and also connect cable-to-cable when paired with the appropriate mating parts. |
 |
Nexans Interface B Separable ConnectorsThese bolted connectors terminate MV-HV XLPE or EPR insulated cables up to 36 kV into Interface B (400 Series) bushings on medium and high voltage equipment. This includes transformers, switchgear and motors. They are suitable for copper wire or tape screened, armoured, braided or unarmoured cables, and also connect cable-to-cable when paired with the appropriate mating parts. |
 |
Nexans Interface C Compact Separable ConnectorsThese bolted connectors terminate MV-HV XLPE or EPR insulated cables up to 42 kV into Interface C (600 Series – C2) bushings on medium and high voltage equipment. This includes transformers, switchgear and motors. They are suitable for copper wire or tape screened, armoured, braided or unarmoured cables, and also connect cable-to-cable when paired with the appropriate mating parts. |
 |
Nexans Interface C Symmetrical Separable ConnectorsThese bolted connectors terminate MV-HV XLPE or EPR insulated cables up to 42 kV into Interface C (600 Series – C1) bushings on medium and high voltage equipment. This includes transformers, switchgear and motors. They are suitable for copper wire or tape screened, armoured, braided or unarmoured cables, and also connect cable-to-cable when paired with the appropriate mating parts. |
 |
Nexans Interface D Separable ConnectorsThese bolted tee and elbow connectors terminate MV-HV XLPE or EPR insulated cables up to 24 kV into Interface D bushings on medium and high voltage equipment. This includes transformers, switchgear and motors. They are suitable for copper wire or tape screened, armoured, braided or unarmoured cables, and also connect cable-to-cable when paired with the appropriate mating parts. |
 |
Nexans Interface E Separable ConnectorsThese bolted tee and coupling connectors terminate MV-HV XLPE or EPR insulated cables up to 42 kV into Interface E bushings on medium and high voltage equipment. This includes transformers, switchgear and motors. They are suitable for copper wire or tape screened, armoured, braided or unarmoured cables, and also connect cable-to-cable when paired with the appropriate mating parts. |
 |
Nexans Interface F Separable ConnectorsThese bolted tee, elbow and coupling connectors terminate MV-HV XLPE or EPR insulated cables up to 42 kV into Interface F bushings on medium and high voltage equipment. This includes GIS, transformers, switchgear and motors. They are suitable for copper wire or tape screened, armoured, braided or unarmoured cables, and also connect cable-to-cable when paired with the appropriate mating parts. |
Side B
 |
Nexans Euromold 480TB Separable Tee ConnectorThese bolted tee-connectors terminate MV-HV XLPE or EPR (polymeric) insulated cables up to 42 kV into 400 Series Interface C Bushings on medium and high voltage equipment, including transformers, switchgear and motors. They comply with CENELEC HD 629.1 and also connect cable-to-cable when you pair them with the appropriate mating parts. |
 |
Nexans Euromold 484TB Separable Tee ConnectorThese bolted tee-connectors terminate MV-HV XLPE or EPR (polymeric) insulated cables up to 42 kV into 400 Series Interface C Bushings on medium and high voltage equipment, including transformers, switchgear and motors. They comply with CENELEC HD 629.1 and also connect cable-to-cable when you pair them with the appropriate mating parts. |
 |
Nexans AFN Outdoor MV Slip-On Cold Shrink Terminations (Single Core | 42kV)Reliable, weather-resistant outdoor terminations for polymeric insulated MV cables with extruded or bonded conductive screens. These terminations provide long-term electrical performance in demanding environments. The range covers voltages up to 42kV. Slip-on silicone housings make installation quick and easy without heat or special tools, and a few sizes cover most cable cross-sections. Compatible with three-core, copper wire screened or copper tape screened and armoured cables, AFN is a versatile, dependable outdoor solution. |
 |
Nexans AIN Indoor MV Slip-On Cold Shrink Terminations (Single Core | 42kV)
Reliable, high-performance indoor terminations for polymeric insulated MV cables with extruded or bonded conductive screens. These terminations deliver long-term electrical performance in controlled indoor environments. The range covers voltages up to 42kV. Slip-on silicone housings make installation fast and easy without heat or special tools, and a few sizes cover most cable cross-sections. Compatible with three-core, copper wire screened or copper tape screened and armoured cables, AIN is a versatile, dependable indoor solution. |
 |
Nexans 12-42 MONOe Outdoor MV Heat-Shrink TerminationsThese medium voltage heat-shrinkable outdoor terminations are designed for single-core polymeric cables with Copper Wire or Tape Screens, rated up to 20.8/36 (42) kV. Quick and easy to install, helping reduce both installation time and potential errors. Each kit includes a stress control mastic strip, a co-extruded dual-wall tube, red anti-tracking sealing mastic and anti-tracking rain sheds. |
 |
Nexans 12-42 MONOi Indoor MV Heat-Shrink TerminationsThese medium voltage heat-shrinkable indoor terminations are designed for single-core polymeric cables with Copper Wire or Tape Screens, rated up to 20.8/36 (42) kV. They’re suitable for compact switchgears and installations where space is limited. Quick and easy to install, helping to reduce both installation time and potential errors. Each kit includes a stress control mastic strip, a co-extruded dual-wall tube and red anti-tracking sealing mastic. |
Customisation Options for Your Jumper Cables
At E-Tech Components, we can customise Nexans products so they meet your specific installation or testing requirements. This includes:
Cable Specifications
- Voltage class: 6 kV up to 72 kV
- Cable types: XLPE or EPR insulated
- Conductor options: copper or aluminium, round, sector, solid or flexible
Connector and Termination Choices
- Interface options: Side A / Side B configurations
- Connector types: 480TB, AFN, AIN or other industry-standard terminations
- Cold shrink slip-on or premoulded designs for quick installation
- For Side B, you can position the contact surface in line with Side A, at a 90° angle with side A, or according to your own custom dimensions
Screening and Earthing Options
- Standard screen wires with earthing lug
- Optional braided, twisted, or extra cable configurations
- Joint contact + grounding cable with HS tube available
Packaging and Delivery
- Cardboard or wooden box packaging
- Fully hand-made and electrically tested before shipping
With custom pre-assembled jumper cables, you get a ready-to-use solution designed to save time while giving you reliable operation.
Bespoke Jumpers and Test Leads – Applications
Jumper cables (low & medium voltage jumpers) are used across a wide range of industries. In power distribution, utilities, substations and grid operators rely on jumper cables for reliable connections. In the renewables sector, wind farms, solar plants and offshore installations benefit from durable, weather-resistant jumper cables and test leads. Industrial environments such as mining, petrochemicals and heavy industry use jumper cables and electrical test leads to maintain dependable operations under harsh conditions. And for testing and maintenance, engineers utilise test lead kits or test lead sets to provide safe, temporary connections during diagnostics and commissioning.
Pre-Assembled Jumper Cables – Quality, Safety and Performance
Nexans Euromold jumper cables and test leads are engineered to deliver premium quality and exceptional performance. Each jumper is carefully hand-made through an ISO-certified assembly process with meticulous craftsmanship. Partial discharge testing guarantees reliable operation up to 72 kV, while touchproof, screened connectors protect both personnel and equipment. The ready-to-use designs eliminate the need for on-site assembly, saving time and reducing the risk of errors. When it comes to pre-assembled jumper cables (low & medium voltage jumpers), every product is built to meet strict quality standards and deliver dependable performance in demanding applications.
Custom Jumper Cables – Enquiry Form
Custom jumper cables and test leads from Nexans Euromold combine flexibility, reliability and safety. With options for indoor and outdoor applications, hand-made assembly and ready-to-use designs, you can get exactly what your project requires.
Contact E-Tech Components Today
E-Tech helps you select the right low / medium voltage jumper cables (jumpers) and electrical test leads. Complete the form above or contact us today for technical advice, bespoke solutions and fast delivery.
| 📞 +44 (0)1744 762 929 | 📧 sales@etechcomponents.com | Separable Connectors: Learn More |