Mersen Solutions for Data Centers
Mersen is at the forefront of this growing market working to provide cutting edge technology products to help address customer needs. As the demand within these markets grows, unique product offerings from Mersen help meet the challenges faced by data centers and critical power infrastructure.
-
Making Data Centers more reliable.
Mersen fuses play a critical role in ensuring the reliability and safety of electrical systems in data centre applications. Designed for high-performance and fast response, these fuses provide overcurrent protection to safeguard sensitive equipment such as servers, UPS systems, power distribution units (PDUs), and cooling infrastructure. In environments where uptime is essential, Mersen fuses help prevent electrical faults from escalating into costly outages or equipment damage. Their compact design, high interrupting ratings, and compliance with global standards make them well-suited for the dense and demanding electrical architectures typical in modern data centres. By minimizing downtime and enhancing system protection, Mersen fuses contribute significantly to the operational continuity and efficiency of mission-critical IT environments.
-
KEY CHALLENGES
-
More power
AI workloads are increasing rack power requirements. -
Higher availability through safer and reliable solutions
Every electrical fault can impact uptime and operating costs.
-
-
-
Thermal management
Higher power densities create greater cooling challenges. -
Greater efficiency
Operators must reduce losses while delivering more computing power. -
New architectures
Power systems are evolving toward denser and increasingly DC-based architectures.
-
-
Designed for Data Centers
Mersen’s comprehensive range of products ensures that data centers can meet increasing demands while maintaining high levels of performance, reliability, and energy efficiency. Our innovative solutions are designed to support the ever-growing needs of modern data centers, offering a sustainable and secure foundation for the technologies of the future.
Whether addressing power distribution, cooling, energy storage, or monitoring, Mersen remains a leader in providing critical power solutions for this expanding market. -
Building the Data Center of Tomorrow
The electrical architecture of data centers continues to evolve.
As the industry moves toward higher-voltage DC distribution, solid-state transformers, silicon carbide power electronics, advanced liquid cooling, and increasingly dense AI clusters, infrastructure must be designed with flexibility and scalability in mind.
Mersen is actively supporting these industry transitions by developing technologies that enable future-ready electrical systems while participating in initiatives that help shape tomorrow's data center standards.
By understanding both current and emerging architectures, Mersen helps customers confidently prepare for the next generation of digital infrastructure.
-
Every data center depends on resilient electrical systems that operate continuously under demanding conditions.
Solutions for Mission-Critical Infrastructure
-
Mersen Products in Datacenter
Reliable computing begins with reliable power.
Mersen supports every critical stage of the power delivery chain, enabling the safe and efficient flow of electricity from the utility connection to the most demanding AI servers.
Our solutions support:
- Utility and medium-voltage power distribution
- Solid State Transformers (SST)
- UPS and battery energy storage systems
- Busway and power distribution infrastructure
- Power distribution units (PDUs)
- Power supply units (PSUs)
- High-density server and GPU environments
Across this electrical ecosystem, Mersen provides technologies for electrical protection, bus bars, capacitors, cooling, and power conversion that help maximize system reliability, efficiency, and uptime. The result is a comprehensive "Grid-to-GPU" approach that supports both today's data centers and tomorrow's AI infrastructure.
-
Data Centers
What product for what function
Mersen’s key product offerings for data centers and critical power.
Click on (+) markers on illustration below to discover Mersen’s solutions.
-
AC/DC Rectifier – Solid State Transformer (SST)
-
Busway/Bus Duct & Dropdown
-
Distribution Panel
-
Transformers
-
-
Why Mersen ?
Pierric Gueguen
VP, Strategic Marketing
“Data centers are evolving faster than ever, driven by AI, increasing power density, and the need for uncompromising reliability. Success requires more than individual components. It demands a partner with the expertise to optimize the entire electrical ecosystem, from protection and power distribution to cooling and energy storage.”
Mersen combines decades of electrification expertise with a comprehensive portfolio of technologies designed for modern data center infrastructures. From today's mission-critical facilities to tomorrow's AI-powered architectures, we help operators improve safety, efficiency, reliability, and long-term scalability through advanced electrical protection, power management, cooling, and energy storage solutions. -
Solutions for Data Centers
Find out more about our solutions by contacting our experts.
-
Shaping the Future of Data Center Power
Collaborating with Industry Leaders on Current/OS
Mersen contributes protection and safety expertise to the Current/OS ecosystem, which brings together electrical manufacturers and industry stakeholders to define shared rules for DC distribution. The initiative addresses system safety, interoperability, voltage management, fault detection, disconnection and certification, helping customers move from individual pilot projects to scalable and replicable DC architectures.
Advancing DC technology for industry
The Open Direct Current Alliance brings together companies, research institutions and industry experts to accelerate the practical deployment of DC technology. Building on experience from industrial DC research projects and real-world installations, ODCA develops system concepts and shares knowledge for efficient, resource-conscious and reliable DC grids. Mersen contributes its protection expertise to support the development of safe and scalable industrial DC applications.
Supporting the evolution of data center power
The Open Compute Project brings together hyperscalers, equipment manufacturers and technology providers to develop open solutions for next-generation data center infrastructure. As AI drives higher rack power density, the OCP community is working on high-voltage DC architectures, including 800VDC distribution, to reduce current, conductor requirements and power-delivery complexity. Mersen’s DC protection expertise is relevant to the fault interruption, coordination and isolation requirements created by these emerging architectures.
-
Preparing for what’s next
As AI drives rack power toward hundreds of kilowatts and beyond, data center operators face growing challenges in current handling, efficiency, copper use and infrastructure footprint.
High-voltage DC architectures, including emerging 800VDC designs, can simplify power delivery and support higher computing density. They also introduce new requirements for fault interruption, protection coordination, insulation and safe isolation. -
-
Resources
-
Frequently asked questions:
-
Why are fuses critical in data centers?
Fuses provide reliable short-circuit and overload protection with high interrupting ratings (AIR/IC). In data centers, they help maintain uptime by isolating faults rapidly (typically in less than ½ cycle), limiting let-through energy (I²t), and preventing arc flash propagation in accordance with IEC 60269 and UL 248 standards.
-
How do surge protective devices (SPDs) improve reliability?
SPDs (per IEC 61643 and UL 1449) mitigate transient overvoltages caused by lightning, utility switching, or internal load changes. By clamping or diverting surge energy to ground, they protect servers, UPS systems, and networking hardware, reducing the likelihood of downtime or catastrophic failures.
-
What is the protection coordination strategy between fuses and SPDs?
Fuses protect against sustained overcurrents and short-circuits, while SPDs address transient surges. Coordination is essential: fuses must not operate during a surge event unless the SPD fails. Correct selection ensures the SPD’s maximum continuous operating voltage (MCOV) and short-circuit current rating (SCCR) are compatible with the fuse and system design.
-
What are best practices for maintenance?
- Replace fuses after operation with the correct type and rating.
- Inspect SPDs regularly, as MOV-based devices degrade over time or after significant surge events.
- Implement monitoring systems for SPDs (status indicators, remote signaling).
- Follow NFPA 70B recommended practices for preventive maintenance.
-
