Summary
- DELPHYS XL+ scales from 500kW to 1.25MW using 125kW hot-swappable modules.
- Socomec specifies up to 98% efficiency in online double-conversion mode.
- The 1.25MW configuration occupies a 1.3m² cabinet footprint and requires no rear or side clearance.
Socomec has launched a modular UPS platform spanning 500kW to 1.25MW for data centres using increasingly compact prefabricated electrical infrastructure.
The DELPHYS XL+ uses 125kW hot-swappable power modules and is intended for conventional data centres as well as modular and prefabricated facilities.
Socomec specifies efficiency of up to 98% in online double conversion mode and up to 99% in Smart Conversion Mode.
The system uses silicon carbide MOSFET technology and can be configured with N or N+1 redundancy.
The 1.25MW configuration fits into a cabinet measuring 1.2 metres wide by 1.125 metres deep, occupying roughly 1.3m².
The standard configuration has no front doors, requires no rear or side clearance, and places no cooling fans on top of the UPS.
Those dimensions affect more than the cabinet footprint. Prefabricated power modules have to accommodate switchgear, busbar, battery connections, controls, cable routes, and safe access for maintenance.
A compact UPS can still consume substantial usable space if engineers need rear access or wide door clearances.
Socomec says DELPHYS XL+ can reduce operational footprint by as much as 30% compared with mainstream alternatives. The final saving will depend on the complete electrical layout rather than the UPS alone.
The company also claims the platform requires 12% less cooling than the market average.
Power conversion losses become heat inside the electrical environment, so UPS efficiency affects both electricity demand and cooling requirements.
The effect increases as repeated power blocks move into the megawatt range. Small percentage changes can become material when the same architecture is deployed across a large campus.
AI workloads also create more dynamic electrical demand than many traditional enterprise systems. Rapid changes in accelerator power state increase interest in the response of upstream infrastructure as well as its steady state efficiency.
Socomec says the new UPS has been designed around those load profiles, although it has not published independent performance data against specific accelerator workloads.
The platform supports lithium ion and VRLA batteries and is designed to connect to standard busbar systems.
Product listings cover seven capacities between 500kW and 1.25MW, with the largest system using ten 125kW modules.
Prefabricated power modules allow more assembly and testing to happen away from the live construction site, but they also make dimensions and maintenance access harder constraints.
Repeating the same electrical pod across a campus multiplies any space, cooling, or service penalty in the original design.
DELPHYS XL+ addresses that pressure at the UPS level. Its claimed efficiency and footprint advantages will ultimately be determined by the complete power chain in which it is installed.

