As demand for cloud computing, artificial intelligence, and real-time data processing continues to grow, data centers are moving toward much higher power density. Traditional rack power levels of 4–8 kW are increasingly being replaced by 20 kW, 50 kW, or even higher in advanced facilities. While this evolution delivers greater computing capacity, it also creates much higher electrical and thermal stress across the entire system.
Under these conditions, the reliability of electrical equipment becomes more critical than ever. From power distribution cabinets and transfer switches to relays, breakers, and connectors inside equipment, every electrical node must remain stable under high temperatures, current surges, and frequent switching. In many cases, the key to this reliability lies in a small but essential component: the
electrical contact material.
New Demands on Electrical Contact Materials
As power density continues to rise, conventional contact materials face growing performance challenges.
High Temperature and Oxidation
Elevated operating temperatures can accelerate oxidation on contact surfaces, especially in enclosed, high-load environments. Once oxidation begins, contact resistance may become unstable, leading to additional heat generation and further material degradation. Over time, this cycle can affect switching stability and threaten overall system safety.
Anti-Welding Performance Under Frequent Switching
Data centers rely on highly reliable power continuity. During backup power transfer, server startup, and load switching, electrical contacts may experience repeated inrush currents and arc impact. If the contact material does not provide sufficient anti-welding performance, sticking or welding may occur, preventing proper switching or interruption. For facilities designed for extremely high uptime, even a single contact failure can create significant operational risk.
Higher Performance in More Compact Designs
Modern data centers increasingly adopt compact electrical equipment to improve space utilization. This means contact materials must carry higher current loads within smaller structures while maintaining conductivity, switching reliability, and long service life. As a result, today's electrical contact materials must do more than conduct current—they must also support oxidation resistance, anti-welding capability, and compact system design at the same time.
Fudar Alloy: Full-Range Contact Solutions for Data Centers
With more than 30 years of expertise in electrical contact materials,
Fudar Alloy has developed a complete portfolio of contact solutions for data center electrical systems. From small- and medium-current switching to high-current power transfer, and from static conduction to dynamic connection, our solutions are designed to meet the reliability demands of modern data center infrastructure.
Riveted Contact Assemblies
In small- and medium-current ATS applications, frequent switching can lead to mechanical wear and increase the risk of contact welding. Fudar Alloy's riveted
contact assemblies are designed to deliver both conductivity and long service life, with electrical durability of more than 100,000 operations, 30% better anti-welding performance than conventional materials, and contact resistance controlled below 0.3 mΩ. This helps ATS units maintain reliable switching under repeated load impact and supports uninterrupted power continuity.
Welded Contact Assemblies
In high-current switching scenarios, arc energy can severely damage conventional contacts. Fudar Alloy's welded contact assemblies are engineered to balance conductivity and arc erosion resistance through optimized material design and brazing technology. They are well-suited for demanding applications such as high-current ATS systems and bypass switches.
Flexible Connection Assemblies
Vibration and repeated movement can also affect electrical reliability in data center systems. Fudar Alloy's flexible connection assemblies use braided copper strips with conductivity up to 100% IACS and a bending life of more than 100,000 cycles. Combined with dual-contact redundancy and integral welding technology, they help reduce resistance fluctuation, lower temperature rise by more than 15%, and support a maintenance-free service life of over five years.
Copper Alloy and Silver Alloy Contacts
For advanced power architectures such as HVDC systems and compact DC breakers, Fudar Alloy offers both copper- and silver-alloy moving and stationary contacts. Copper alloy contacts provide strong conductivity and anti-sticking performance for frequent switching conditions, while silver alloy contacts are designed to balance conductivity, anti-welding capability, compact structure, and cost efficiency.
From Material Performance to System Reliability
In data centers, reliability depends not only on major equipment such as UPS systems, switchgear, and power distribution units, but also on the performance of every switching and conduction point. Electrical contact materials play a critical role in maintaining stable operation under high temperature, frequent switching, and increasing power density.
With a full range of solutions—from riveted and welded contacts to flexible connectors and alloy contact systems—Fudar Alloy helps data center customers address application-specific challenges and build more reliable electrical systems.
Conclusion
As AI and digital infrastructure continue to evolve, data centers will place even higher demands on electrical safety, efficiency, and uptime. Meeting these demands requires not only advanced system design, but also dependable materials at every critical connection point.
Fudar Alloy will continue to focus on innovation in electrical contact materials, supporting safer, more stable data center operations with reliable, application-driven solutions.
To learn more about Fudar Alloy's electrical contact solutions for data center applications, contact us for product details and customized solutions.
