Used UPS Systems
Modular and monolithic UPS systems for data center and mission-critical backup power. Verified kW ratings, runtime, and battery topology.
About this Category
Modular and monolithic UPS systems sized for data center and mission-critical backup power. Verified kW rating, runtime, battery topology, and PUE impact across major OEMs and the secondary market.
Featured Models
The 10 ups dossiers to read first, ranked on tracked availability, documented specifications, and published pricing rather than alphabetically. All 22 dossiers in the category are listed further down the page.
- Schneider Electric SE (also sold as APC by Schneider Electric) Galaxy VS, 10-150 kW — 10-150 (20-150 at 480 V; 10-75 at 208 V) kW · $300–$406 used
- ABB Ltd (Electrification, Critical Power) MegaFlex DPA (IEC) and MegaFlex UL (North America) — 250 kW
- ABB Ltd (Electrification, Critical Power) DPA 250 S4 modular UPS (IEC 400 V) — 50 kW
- ABB Ltd (Electrification, Critical Power) DPA UPScale ST 80 kW frame (Series 2) — 10 or 20 kW
- Active Power Inc. (Piller Power Systems group, Langley Holdings plc) CleanSource HD flywheel UPS, 675 kW — 625 at 380/400/415 V kW
- Eaton Corporation plc (Powerware lineage) 93PM G2 (EMEA) / 93PM 480V (North America) — 50, 100, 150, 200, 250 at 480 V kW · lead time 1-4 weeks from dealer stock
- Eaton Corporation plc (Powerware lineage) Power Xpert 9395P, 200-1200 kVA — 12 verified specifications
- Mitsubishi Electric Power Products, Inc. (Critical Power Solutions Division) 7011A Series single-phase UPS, 6-12 kVA — 6.0-12.0 (4.2-8.4 kW) kVA
- Mitsubishi Electric Power Products, Inc. (Critical Power Solutions Division) 9900AEGIS Series, 80-225 kVA — 80-225 (72-202.5 kW at 0.90 PF) kVA
- Mitsubishi Electric Power Products, Inc. (Critical Power Solutions Division) SUMMIT Series UPS (silicon carbide), 500 and 750 kVA — 500 and 750 (kVA = kW at unity PF) kVA
Used UPS Systems Models (22)
Every model below has a specification dossier with verified ratings, pricing context, and lead-time intelligence.
ABB Ltd (Electrification, Critical Power) DPA 250 S4 modular UPS (IEC 400 V) — ABB Ltd (Electrification, Critical Power)
ABB Ltd (Electrification, Critical Power) DPA UPScale ST 80 kW frame (Series 2) — ABB Ltd (Electrification, Critical Power)
ABB Ltd (Electrification, Critical Power) MegaFlex DPA (IEC) and MegaFlex UL (North America) — ABB Ltd (Electrification, Critical Power)
Active Power Inc. (Piller Power Systems group, Langley Holdings plc) CleanSource HD flywheel UPS, 675 kW — Active Power Inc. (Piller Power Systems group, Langley Holdings plc)
Eaton Corporation plc (Powerware lineage) 93PM G2 (EMEA) / 93PM 480V (North America) — Eaton Corporation plc (Powerware lineage)
Eaton Corporation plc (Powerware lineage) Power Xpert 9395P, 200-1200 kVA — Eaton Corporation plc (Powerware lineage)
Mitsubishi Electric Power Products, Inc. (Critical Power Solutions Division) 7011A Series single-phase UPS, 6-12 kVA — Mitsubishi Electric Power Products, Inc. (Critical Power Solutions Division)
Mitsubishi Electric Power Products, Inc. (Critical Power Solutions Division) 9900AEGIS Series, 80-225 kVA — Mitsubishi Electric Power Products, Inc. (Critical Power Solutions Division)
Mitsubishi Electric Power Products, Inc. (Critical Power Solutions Division) SUMMIT Series UPS (silicon carbide), 500 and 750 kVA — Mitsubishi Electric Power Products, Inc. (Critical Power Solutions Division)
Piller Power Systems GmbH (Langley Holdings plc) POWERBRIDGE kinetic energy storage (PB6+ and PB60+) — Piller Power Systems GmbH (Langley Holdings plc)
Piller Power Systems GmbH (Langley Holdings plc) UNIBLOCK UBT+ rotary UPS, 150 kW to 50 MW — Piller Power Systems GmbH (Langley Holdings plc)
Riello UPS S.p.A. (Riello Elettronica group) Multi Sentry MST (160 and 200 kVA current; 10-125 kVA superseded) — Riello UPS S.p.A. (Riello Elettronica group)
Schneider Electric SE (also sold as APC by Schneider Electric) Galaxy VL, 200-500 kW — Schneider Electric SE (also sold as APC by Schneider Electric)
Schneider Electric SE (also sold as APC by Schneider Electric) Galaxy VS, 10-150 kW — Schneider Electric SE (also sold as APC by Schneider Electric)
Schneider Electric SE (also sold as APC by Schneider Electric) Galaxy VX, 500-1500 kVA — Schneider Electric SE (also sold as APC by Schneider Electric)
Toshiba International Corporation (Toshiba America Inc. group) G9000 Series, 100-2000 kVA — Toshiba International Corporation (Toshiba America Inc. group)
Vertiv Holdings Co (Liebert brand) Liebert APM2 modular UPS, 10-600 kW — Vertiv Holdings Co (Liebert brand)
Vertiv Holdings Co (Liebert brand) Liebert EXL S1, 250-1200 kW — Vertiv Holdings Co (Liebert brand)
Vertiv Holdings Co (Liebert brand) Liebert EXM2, 100-250 kVA/kW (EMEA and APAC) — Vertiv Holdings Co (Liebert brand)
Vertiv Holdings Co (Liebert brand) Liebert GXT5, 500 VA-20 kVA rack/tower — Vertiv Holdings Co (Liebert brand)
Vertiv Holdings Co (Liebert brand) Liebert Trinergy Cube, 800 kW-1.6 MW (Americas) — Vertiv Holdings Co (Liebert brand)
VYCON (divested by Calnetix Technologies in 2022; current owner not disclosed) VDC flywheel energy storage, 300 kW — VYCON (divested by Calnetix Technologies in 2022; current owner not disclosed)
Pricing Tiers
- New OEM — direct manufacturer with full warranty and lead times of 12–36 months.
- Gray Market — surplus new inventory at discounted pricing, available immediately.
- Refurbished — overhauled units with restored specs and limited warranty.
- Used — operational units with documented run-time and condition reports.
Related Intelligence
- UPS Topologies Explained: Double Conversion, Line-Interactive and Eco Mode
- Modular vs Monolithic UPS: Choosing a Frame Architecture
- How to Size a UPS: kVA, kW, Power Factor and Redundancy
- UPS Energy Storage: VRLA, Lithium-Ion and Flywheel Compared
- Data Center UPS and Energy Storage: Topologies, Sizing, and Selection
- Data Center UPS Pricing Guide: $/kW Benchmarks, Lead Times, and TCO Math for 2026 Buyers