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Modular 3-phase UPS with DPA architecture, 50 kW modules, up to 1500 kW total capacity, 97.6% module efficiency and unity power factor.
The ABB DPA 250 S4 is a modular three-phase online UPS with decentralized parallel architecture (DPA), providing best-in-class availability, scalability, and efficiency for medium data centers and critical infrastructure. Each 50 kVA power module is a complete, self-contained UPS that can be hot-swapped without any impact on the protected load.
Building out in 50 kVA increments to 250 kVA per cabinet and beyond in parallel, the DPA 250 S4 lets operators start small and grow as demand increases, deferring capital and optimizing operating efficiency at every stage.
| General Data | |
|---|---|
| Power Range | 50 kW - 1500 kW |
| Module Size | 50 kW per UPS module |
| Frame Capacity | 300 kW (6 modules) per cabinet |
| System Capacity | 1500 kW (5 frames in parallel) |
| Topology | Online double conversion, DPA modular |
| Performance | |
| Module Efficiency | 97.6% |
| System Efficiency | 97.4% |
| Xtra VFI Mode | > 97% across wide operating range |
| Service Time | < 10 min to exchange one module |
| Features | |
| Architecture | Decentralized Parallel Architecture (DPA) |
| Battery Options | Module-specific or common, Li-Ion compatible |
| Cable Entry | Top or bottom (factory option) |
| Input Feed | Single or dual input feed |
| Mechanical | |
| Footprint | 0.75 m2 for 300 kW |
| Access | Front access only, no side or rear |
| Communication | SNMP, RS-232, USB, relay board |