20 kVA / 20 kW 208/120 V Three-Phase Online UPS Comparison
Facilities evaluating 20 kVA three-phase UPS infrastructure frequently compare lithium-integrated platforms with conventional VRLA-based systems when assessing lifecycle performance, footprint, and long-term maintenance requirements. The Xtreme Power Li90-20k and Vertiv VM-class (Liebert EXS-V 20 kVA) systems both provide online double-conversion protection for critical facility environments.
Vertiv VM-class systems represent compact standalone three-phase UPS architectures typically deployed with valve-regulated lead-acid batteries. The Li90 platform is designed as a lithium-integrated infrastructure UPS intended to support modernization initiatives through improved power density, reduced lifecycle maintenance intervention, and simplified long-term operational planning.
Learn more about the Li90 platform
https://xpcc.com/3-phase-lithium-ups-li90/
20 kVA / 20 kW Three-Phase UPS Comparison
| Feature | Xtreme Power Li90-20k | Vertiv VM-Class (EXSV-20KTN) | Li90 Advantage |
| UPS Architecture | Lithium-integrated compact standalone UPS | Compact standalone three-phase UPS | Integrated lithium modernization platform |
| Rated Capacity | 20 kVA / 20 kW | 20 kVA / 20 kW | Equal usable capacity |
| Topology | Online double conversion | Online double conversion | Equivalent protection architecture |
| Battery Technology | Lithium Iron Phosphate (LiFePO₄) | VRLA (Lead-Acid) | Extended lifecycle performance |
| Battery Design Life | Up to 15 years | Typically 3–5 years | Reduced replacement frequency |
| Internal Runtime | 15 min (1 module) / 22 min (2 modules) | 11 min | Greater internal runtime |
| Runtime Expansion | Modular internal lithium architecture | External battery cabinets typically required | Simplified infrastructure planning |
| Online Efficiency | 94.5 % | 93.4 % | Higher operating efficiency |
| Cabinet Width | 12.6 in | 23.6 in | Higher power density |
| Installed Weight | 483 lb | >1200 lb depending on configuration | Reduced installation burden |
| Installation Model | Designed for retrofit modernization | Conventional facility UPS replacement | Simplified upgrade execution |
Infrastructure Modernization Considerations
Many facilities continue to operate legacy UPS installations based on VRLA battery architectures that require periodic battery replacement cycles, dedicated environmental control, and ongoing maintenance programs.
Lithium-integrated UPS platforms such as the Li90 are increasingly evaluated as modernization solutions due to:
- extended battery lifecycle performance
- reduced maintenance intervention
- improved electrical-room space utilization
- simplified retrofit deployment
- lower long-term infrastructure operating cost
As organizations transition toward long-term resiliency strategies for critical power systems, lithium three-phase UPS architectures are increasingly considered as replacements for conventional lead-acid-based UPS deployments.
Need Help Selecting a Lithium UPS?
Engineers evaluating compact UPS systems often compare lifecycle performance, footprint, and long-term maintenance requirements. The Xtreme Power team can help evaluate your deployment and recommend the appropriate UPS platform.
Consultants and engineers often require printable comparison documentation for internal review, budgeting, or specification development. Download the full comparison PDF
Phone: 800-582-4524
Email: sales@xpcc.com