In today’s digital economy, data centers are the backbone of every industry, enabling critical operations from financial transactions to cloud computing and AI-driven services. As demand for storage and processing capacity rises, safeguarding these facilities against electrical faults is more essential than ever.
Far from being simple server warehouses, data centers are complex infrastructures that depend on uninterrupted power. Any disruption — from surges, voltage fluctuations, or faults — can trigger downtime, data loss, and heavy financial losses. This is where advanced protection solutions become indispensable.
Mersen: Trusted Partner in Electrical Protection
Mersen provides comprehensive solutions to address the safety and reliability challenges faced by data centers. Its portfolio spans IEC and UL fuses, high-speed fuses for DC/AC converters and DC distribution, surge protection devices, cooling and bus bar solutions, and NH fuse switch-disconnectors—covering the full spectrum of electrical protection for power systems in data centers.
With over 130 years of expertise and a deep understanding of the unique challenges of its customers, Mersen combines deep technical know-how with the ability to develop tailored protection strategies to secure critical data center infrastructure against faults, surges, and anomalies.
ProGrid: Smart Protection for Modern Data Centers
Robust electrical protection is a cornerstone of reliable operation. Mersen’s next-generation protection devices not only protect but also monitor, detect, and report events on the low-voltage grid.
At the heart of this innovation is ProGrid, a new generation of smart NH fuse switch-disconnectors that provide digital connectivity for enhanced grid management. Developed with major utility players, ProGrid solutions meet industry requirements for power distribution in transformer stations, cable distribution cabinets, and low-voltage boards.
The ProGrid Smart versions integrate sensors for contactless access to real-time power and condition data from the bus bar system. Their bottom-mounted design offers the most compact smart solution available—ideal for retrofitting existing panels. In data centers, this means stronger reliability through robust fuse protection combined with real-time visibility on energy use, temperature, and equipment status. The result: safer operation, faster fault detection, and optimized maintenance to maximize uptime.
Multibloc®: Compact and Compliant
Beyond ProGrid, Mersen offers the Multibloc® series, fuse switch-disconnectors designed for bottom fitting or panel installation, giving distribution units a uniform profile. Both ProGrid and Multibloc are designed for and compliant with IEC/EN 60269 and VDE 0636 standards, and are available in a wide range of sizes and amperages.
Compact Fused Switch: Safety in a Smaller Footprint
For installations where space is critical, the Compact Fused Switch integrates switch functionality with the high protection level of a fuse. Accepting UL Class CC fuses up to 30A, the Compact Fused Disconnect is UL 98 listed and suitable for use as a main or feeder device. Paired with CC fuses, it is rated for branch circuit protection and delivers a maximum interrupting rating of 200kA.
Its compact form factor and ease of installation make it an excellent choice for electrical panels. Added features such as lockout/tagout capability and IP20 protection ensure both safety and practicality.
Modulostar®: Reliable Fuse-Holders for Every Circuit
Finally, for circuits up to 690V, Mersen’s Modulostar® range of fuse-holders plays a pivotal role in maintaining electrical safety. They are finger-safe under IEC standards to an IP20 grade of protection—including during fuse replacement—and provide a clear blown-fuse indicator. Available in IEC or IEC + UL versions, they ensure consistent reliability for transformers, low-voltage distribution, and control circuits.
In summary, Mersen’s combination of expertise, innovation, global support, and commitment to sustainability makes it the trusted partner for data center operators seeking reliable, efficient, and future-proof electrical protection. With Mersen as an ally, data centers can maximize safety, ensure uptime, and optimize performance in a rapidly evolving digital landscape.
