Inside Legrand’s Burgeoning AI Power and Cooling Intiatives

Legrand has acquired Kratos Industries and taken a strategic stake in Accelsius, making moves that expand its end-to-end power and thermal management portfolio for AI-era data centres.

The company's reach across the “grey space” (upstream power distribution) and the “white space” (high-density racks and advanced cooling) is a combination that is seen as increasingly critical as operators scale AI infrastructure and pursue tighter integration for performance and reliability.

Grey space power expansion

Based in Arvada, Colorado, Kratos Industries designs and manufactures low-voltage switchboards, medium-voltage switchgear and integrated power systems for data centres and industrial sites.

Its vertically-integrated, engineered-to-order model is built for rapid delivery in mission-critical environments.

Kratos strengthens Legrand’s grey space line-up, adding to cable bus, load banks and cable tray systems while complementing white space power solutions such as busway and rack PDUs.

“Data centres are facing unprecedented pressure to build out digital infrastructure at scale and with extreme reliability,” says Pedro Mendieta, Data, Power and Control (DPC) President of Legrand for North and Central America.

“By welcoming Kratos to Legrand, we are deepening our ability to serve the complete data centre power train, ensuring our customers have a single, trusted partner for their entire power ecosystem.”

Rowan Koons, who will become VP/General Manager of the Kratos business within Legrand’s DPC division, adds: “By leveraging Legrand’s global supply chain and operational infrastructure, we can accelerate growth and better support the massive, complex projects our customers are undertaking.”

As hyperscale and colocation builds trend toward gigawatt campuses, consolidation across power equipment suppliers can streamline procurement and reduce integration risk.

Advancing two-phase liquid cooling

In parallel, Legrand recently participated in the Series B round for Accelsius, a specialist in two-phase, direct-to-chip liquid cooling.

With AI and HPC pushing air cooling to its limits, Accelsius’ phase-change approach removes heat at the processor, enabling higher rack densities while lowering cooling energy versus conventional architectures.

Legrand and Accelsius plan joint development in the white space, integrating liquid cooling within rack infrastructure, which is a reflection of the convergence among power, mechanical and rack design as GPU-heavy clusters scale for training and inference.

Integrating liquid cooling at the rack requires tight coordination across structure, power distribution and coolant management, making system-level partnerships pivotal to uptime and efficiency.

A unified infrastructure play

Legrand positions the Kratos acquisition and Accelsius investment as complementary pillars of a unified data centre strategy: reinforcing the power backbone in the grey space and accelerating next-generation cooling in the white space.

Together, they extend coverage from medium-voltage switchgear and low-voltage distribution through to rack-level liquid cooling integration, an engineered-to-order, customer-first approach aligned to AI and HPC growth.

For operators facing compressed timelines and rising densities, sourcing coordinated power and thermal solutions from a single partner could speed deployment.