Schneider Electric launches Motivair WCDU for data centers mixing air and liquid cooling

Schneider Electric has added a coolant distribution unit to its Motivair range for data centers that now run two kinds of cooling at once—liquid on AI racks, air on traditional cloud and enterprise servers. The WCDU sits outside the white space in the technical corridor, where a single unit handles up to 3.5MW at 1.5 liters per minute per kW or 2.5MW at two liters per minute per kW. As many as 20 units can operate as a coordinated system. Schneider calls it the most powerful CDU in the Motivair line it acquired in 2025. The pitch is that a hall does not have to be rebuilt: operators shifting toward liquid for high-density AI workloads are still running air for traditional servers, and the WCDU lets them adjust that balance without fully redesigning the data hall. Andrew Bradner, who leads Schneider’s cooling business, calls it the only CDU to bring liquid and air cooling into a single solution, a flexibility he says the market has not seen. That exclusivity is Schneider’s claim, and the launch gives no price or customer names.

Cooling sits inside the fence, which makes it the portion of a data center program a vendor of Schneider’s kind can compress. In September the company standardized its power train around factory-built 2.5MW modules, compressing what it can control inside the fence while leaving the interconnection queue, the constraint that sets the buildout’s pace, exactly where it was. A corridor unit that postpones a hall redesign does the same thing for the cooling half of the schedule.

Whether that moves a capital decision rests on numbers the launch does not carry. If standing air-cooled halls can absorb denser racks through a corridor-mounted unit rather than a white-space rebuild, the retrofit case against new liquid-ready construction improves, and owners weighing where the next increment of capacity gets financed have one more reason to sweat the assets they already own. The unit also competes for technical corridor space, which is limited in precisely the buildings that would want one.

The launch does not name the selected regions, so the first evidence of whether operators buy the hybrid approach will be where early units land before US pre-orders open in early 2027.