5 kW · 208/120V Three-Phase · Modular Online UPS · Liebert ITA2 Comparison

M90C-2S 5 kW vs Vertiv Liebert ITA2 5 kW

The Xtreme Power M90C-2S 5 kW and the Vertiv Liebert ITA2 5 kW are online double-conversion three-phase UPS for edge and enterprise deployments. Both deliver unity power factor output; the M90C-2S adds hot-swap power and battery modules, integrated maintenance bypass, a smaller footprint, and TAA eligibility, while the ITA2 offers slightly longer standard runtime.

Xtreme Power
M90C-2S 5 kW
vs
Vertiv
Liebert ITA2 5 kW
Where the M90C-2S 5 kW leads

Where the M90C-2S 5 kW leads

  • Hot-swappable power and battery modules (the ITA2 hot-swaps battery modules only).
  • Integrated maintenance bypass included as standard (no external cabinet).
  • Smaller rack footprint (6U vs 7U).
  • Factory-installed plug-and-play power connections.
  • TAA compliance for government and public-sector procurement.
Side-by-side

5 kW online three-phase UPS, side by side

SpecificationXtreme Power M90C-2S 5 kWVertiv Liebert ITA2 5 kWAdvantage
Rated capacity5 kVA / 5 kW5 kVA / 5 kWBoth unity PF
TopologyOnline double-conversionOnline double-conversionEquivalent protection
ServiceabilityHot-swap power & battery modules, front-accessibleHot-swap battery modules onlyFaster service
Full-load runtimeAbout 12 minAbout 14 minITA2 slightly longer
Rack space6U7USaves one rack unit
Maintenance bypassIntegrated, standardOptional external cabinet requiredNo added space or cost
Power connectionsFactory L21-20P in / L21-20R outFactory L21-20P in / L21-20R outEqual plug-and-play
TAA complianceYesNoFederal / gov eligible

The Vertiv Liebert ITA2 offers slightly longer standard runtime (about 14 vs 12 minutes), while the M90C-2S leads on serviceability (hot-swap power and battery), footprint, integrated bypass, and TAA eligibility. Confirm current Vertiv ITA2 specifications against vendor documentation.

Where each fits

Choosing between them

Both are online three-phase UPS with equal plug-and-play connections, so the decision comes down to service architecture, footprint, bypass, runtime, and procurement. Choose the M90C-2S for hot-swap power and battery, integrated bypass, a smaller footprint, and TAA eligibility; the ITA2 fits where a site is standardized on Vertiv or prioritizes slightly longer internal runtime.

Choose the M90C-2S 5 kW if you need

  • Edge and enterprise environments requiring three-phase online protection
  • Installations where rapid service and minimal downtime are critical
  • Locations with limited rack space
  • Government and public-sector projects requiring TAA compliance
  • Deployments that benefit from integrated bypass without added cabinets

The Liebert ITA2 5 kW may fit if you need

  • Commercial enterprise environments standardized on Vertiv platforms
  • Applications where slightly longer internal runtime is prioritized
  • Installations with space for an optional external bypass cabinet

Specifying a compact three-phase UPS?

Xtreme Power supports early specification, design-in, and lifecycle planning for edge, data center, enterprise, and regulated infrastructure across both 208 V and 400 V platforms.