Powering data centres electrical network with high-performance technologies

During the construction phase, meeting deadlines at the right cost is essential. Nexans understands on-site constraints and supports you with solutions designed to simplify installation and improve execution efficiency.  Nexans supplies data centres with both standard and high-end quality cables, accessories, cabling solutions and services which ensure fast deployment, high transmission quality, outstanding security, secure backup, easy migration,and transparent network management. We support all data centre architectures, and can do a fully customized end-to-end installation.

A complete portfolio of cables and accessories

Nexans provides one of the most complete range of cables and accessories designed to support every level of your data centre electrical infrastructure. From high voltage transmission to low voltage distribution and final connections to IT server racks, our solutions are engineered to ensure reliable, safe and efficient power delivery across all environments.
Browse our full product portfolio :

• High voltage cables
• Medium voltage cables
• Low voltage cables
• High temperature flexible cables
• High temperature superconducting cables
• Power accessories - Separable Connectors, Surge Arresters & Bushings
• Power accessories - Terminations
• Pre-assembled jumper cables

High voltage cables

For large-scale data centres with substantial power requirements, high voltage cables are crucial. Nexans’ high voltage solutions ensure efficient power transmission over long distances, maintaining system integrity and performance. High voltage cables are custom-designed solutions tailored for high voltage level, installation environment and specific constraints of each project. Nexans provides 36 kV to 500 kV solutions, mastering the whole value chain to ensure safe, performing and sustainable energy transportation.

Medium voltage cables

Suitable for connecting the data centre to the primary power supply or backup generators, Nexans’ medium voltage cables are designed to handle higher power loads with safety and reliability.

Low voltage cables

For low-voltage power distribution within data centres, we provide a large range of installation cables that comply with CPR, ensuring the appropriate safety level as per requirements defined in the regulation for each application. These cables ensure a reliable power supply to various pieces of equipment, including:

• servers and IT infrastructure
• lighting systems
• cooling systems
• power sockets and auxiliary equipment

Data centres are critical infrastructures where even a limited fire incident can result in equipment damage, service disruption and significant financial losses. Cable selection therefore forms an important part of the overall fire-risk mitigation strategy. Low fire-hazard cables constitute the best line of defense against fire in all types of buildings and infrastructures. They significantly delay the propagation of flames, thus gaining precious time for evacuation and fire-fighting. Thanks to their advanced reaction-to-fire properties, they reduce opaque smokes and acid gases to a minimum, securing a safe escape with the best possible visibility. Nexans low fire hazard cable solutions are designed to reduce the cables' contribution to fire propagation and, according to the selected product, limit smoke and corrosive gas emissions. By selecting the appropriate fire-performance classification for each installation, data centre operators can further support the safety and resilience of their infrastructure. 

High temperature flexible cables

Designed for demanding DC power applications in data centres, Nexans SIWO-KUL® cables combine exceptional flexibility with high-temperature resistance, enabling safe and reliable battery interconnections even in confined spaces.

Key benefits

• Very high flexibility → facilitates installation in confined spaces
• Reduced bending radius → ideal for short connections between batteries
• Excellent heat resistance (up to approximately 180°C)
• Good resistance to harsh environments

High-temperature superconducting cables

High-Temperature Superconducting (HTS) cables offer a compelling solution that can radically simplify power infrastructure, reduce costs while unlocking a step change in how data centres transmit and distribute power and redefining the overall infrastructure design. With zero electrical resistance, ultra-high current capacity and a compact footprint, HTS cables can radically simplify power infrastructure, reduce thermal loads and support the broader goals of sustainability and electrification.

Nexans HTS cables cover the full range of voltage levels, from HV transmission and MV distribution networks to LV power distribution within data centres, providing a scalable solution for every stage of the power chain.

Nexans can also supply also the entire range of Superconducting accessores (Terminations and joints).

Power accessories - Separable Connectors, Surge Arresters & Bushings

Nexans provides a comprehensive range of medium-voltage separable connectors, surge arresters and bushings for reliable power distribution across data centre electrical networks. Suitable for utility connections, substations, transformers and switchgear, these solutions support the reliability and continuity of critical power infrastructure.

Surge arresters protect key electrical equipment against lightning and switching overvoltages. Compact, screened and maintenance-free, they are designed for fast and straightforward installation, with solutions for applications up to 42 kV.

Key benefits:

• Reliable & tested
• Compact design
• Easy installation
• Connection & protection
• Complete MV system

Power accessories - Terminations

Nexans offers a comprehensive range of indoor and outdoor terminations using cold-shrink, slip-on and heat-shrink technologies, suitable for a wide range of cable sizes and installation configurations.

Engineered for the demanding power distribution architectures of modern data centres, Nexans terminations provide installation flexibility, compact integration and proven electrical performance. Suitable for substations, transformer connections, switchgear and backup power systems, they deliver reliable connections across critical power distribution systems, supporting safe and durable operation throughout the facility lifecycle.

Key benefits:

• Multiple technologies
• Indoor & outdoor
• Wide application range
• Easy installation
• Compact & reliable

Pre-assembled jumper cables

For data centre projects where speed, reliability and standardization are essential, Nexans provides plug-and-play pre-terminated power cables, assembled and tested under controlled factory conditions.

Cables are pre-assembled using Nexans accessories, reducing critical on-site operations while ensuring consistent installation quality and reliable performance. 

Going beyond cables with a full range of solutions and services

Energy efficiency, reliability, optimized costs and sustainability, Nexans supports you at every stage of your project with advanced technologies and digital services going beyond cables.