14 August 2025

ABB’s DPA 250 S4 is a high-efficiency, modular UPS designed for environmentally conscious organisations requiring zero downtime and low total cost of ownership.

Tailored for critical, high-density computing environments such as small- to medium-sized data centres, it features a transformer-free IGBT converter with a three-level topology and interleaving controls, achieving a market-leading efficiency of 97.6%. This advanced efficiency reduces energy consumption and operational costs while minimising environmental impact.

Built on a decentralised parallel architecture (DPA™), each module functions independently, enhancing overall system reliability and availability through inherent redundancy at all functional levels. The DPA 250 S4 supports online double conversion operation, ensuring continuous power quality and protection for sensitive equipment.
Its modular design simplifies installation, maintenance, and scalability, making it an ideal solution for organisations seeking a resilient, future-proof power infrastructure.