ABB E-Mobility has launched its OM X-Series, a distributed charging system designed for high-duty cycle, megawatt-scale applications including transit depots, logistics hubs, and public charging corridors.

The system is designed to scale from 800 kW to more than 10 MW, supporting more than 100 charge points through a coordinated site architecture rather than isolated charger clusters.

ABB says the X-Series uses an end-to-end liquid-cooled power path, including a power cabinet with integrated cooling, proprietary liquid-cooled power modules, and liquid-cooled charging cables. The company says the modules achieve more than 98% conversion efficiency under continuous operating conditions.

The architecture includes a site-level DC bus that allows cabinets and storage assets to coordinate power across the site in real time. Battery energy storage can connect directly to the DC bus, which ABB says improves round-trip efficiency by more than five percentage points compared to AC-coupled systems, while supporting peak shaving and demand management.

The initial X-Series configuration includes two 800-kW cabinets connected through a DC bus for direct battery storage integration, supporting up to 24 charge outputs. ABB says the system can later scale toward multi-megawatt operation without civil rework.

“Charging is moving toward mission profiles where systems must operate under sustained load for years, not just peak moments,” said Michael Halbherr, CEO of ABB E-Mobility. “At that level of utilization, thermal stability and energy efficiency are not specifications; they are the economics. The X-Series is built for that standard from the architecture up.”

The OM X-Series follows ABB E-mobility’s A-Series, launched in 2024, and the OM M-Series, launched in April. The OM M-Series and X-Series share a common dispenser portfolio, allowing sites to begin with the M-Series and expand into the X-Series as charging demands increase.