Xtreme Power M90U 40 kVA vs Vertiv Liebert EXSV-40KN

40 kVA Modular Online UPS Comparison for 208V Three-Phase Applications

The Xtreme Power M90U 40 kVA and the Vertiv Liebert EXSV-40KN (V-Model) are three-phase, online double-conversion UPS systems designed for medium-sized, mission-critical environments requiring internal battery runtime, high efficiency, and scalable growth.

Both platforms deliver unity power factor output and utilize internal VRLA batteries with published runtime data. However, the M90U 40 kVA incorporates a modular internal battery architecture and supports future expansion without replacing the UPS cabinet. The Liebert EXSV-40KN is configured as a fixed-capacity system using traditional internal battery strings.

For facilities prioritizing longer internal runtime, expansion flexibility, higher operating efficiency options, and simplified battery serviceability, the M90U 40 kVA offers a more adaptable long-term platform.

Learn more about the Xtreme Power M90U Series
https://xpcc.com/products/m90u/

Key Differentiators at a Glance

  • Longer internal runtime at full load
    • Modular internal battery architecture
    • Upgrade path to 60 kVA without UPS replacement
    • Higher operating efficiency with ECO mode
    • Narrow 20.3-inch cabinet including batteries
    • Hot-swappable battery modules for simplified maintenance
    • Longer standard warranty coverage

40 kVA Modular UPS Feature Comparison

208V, Three-Phase Applications

Feature Xtreme Power M90U 40 kVA Vertiv Liebert EXSV-40KN (V-Model) Notes / Considerations
Rated Capacity 40 kVA / 40 kW 40 kVA / 40 kW Equal usable output power
Topology Online double conversion Online double conversion Equivalent protection architecture
Battery Architecture Modular internal VRLA battery modules Internal VRLA battery strings Module-level battery design
Internal Runtime (Full Load) 11 minutes @ 40 kW (12 modules) 6 minutes @ 40 kW Longer internal runtime
Capacity Upgrade Path Upgradeable to 60 kVA / 60 kW Fixed capacity per UPS Growth without system replacement
Efficiency (Online / ECO) 94.1% online; 98% ECO mode 93.4% online Higher peak operating efficiency options
Cabinet Width (Including Batteries) 20.3 inches 23.6 inches Higher power density per footprint
Service & Maintenance Hot-swappable battery modules Battery string replacement Faster, simplified battery service
Standard Warranty 2-year 1-year Longer standard coverage

Download the Printable Comparison

Download the Xtreme Power M90U 40 kVA vs Vertiv Liebert EXSV-40KN comparison PDF.
Ideal for engineering submittals, bid evaluations, and procurement documentation.

https://xpcc.com/wp-content/uploads/Xtreme-M90U-40-Vertiv-Liebert-EXSV-40KN-Comparison.pdf

Where the M90U 40 kVA Excels

  • Facilities requiring longer internal runtime at 40 kVA
    • Projects planning future expansion to 60 kVA
    • Installations where cabinet width impacts space utilization
    • Applications seeking higher efficiency through ECO mode
    • Environments prioritizing modular battery serviceability
    • Deployments requiring longer standard warranty coverage

When the Liebert EXSV-40KN May Be a Fit

  • Facilities standardized on Vertiv infrastructure
    • Applications requiring fixed 40 kVA capacity
    • Sites using traditional internal battery string architecture

Who Should Choose Which?

Choose the Xtreme Power M90U 40 kVA if you need:

  • 40 kVA today with upgradeability to 60 kVA
    • Longer internal runtime at full load
    • Modular battery design with hot-swappable modules
    • Higher operating efficiency with ECO mode
    • Narrow cabinet footprint including batteries
    • Longer standard warranty coverage

Choose the Vertiv Liebert EXSV-40KN if you need:

  • Fixed 40 kVA capacity without expansion
    • Alignment with existing Vertiv UPS deployments
    • Traditional internal battery string configuration

Compare M90U 40 kVA to Other Modular UPS Alternatives

Evaluating medium-frame three-phase UPS platforms or planning multi-site standardization?

View all M90U Series comparisons: https://xpcc.com/m90u-ups-comparisons/

Plan With Confidence

Xtreme Power Conversion supports specification development, runtime modeling, and lifecycle planning for healthcare, education, retail, industrial, and distributed IT environments.

(800) 582-4524
sales@xpcc.com