M90C-2S & M90Ci-2S UPS comparisons
The Xtreme Power M90C-2S (208/120 V) and M90Ci-2S (400/230 V) are compact modular online double-conversion three-phase UPS platforms for edge data centers, enterprise IT, industrial control, and distributed infrastructure. Both use a dual-slot modular architecture with hot-swappable power and battery modules, unity power factor output, and scalable runtime in a compact 6U rack — the M90C-2S for North American 208 V deployments, the M90Ci-2S for global 400 V. This hub shows how they compare to Eaton and Vertiv compact three-phase alternatives across serviceability, lifecycle status, topology, and footprint.
Two voltages, one compact modular architecture
Both platforms share a compact 6U rack-integrated chassis with hot-swappable power and battery modules, integrated maintenance bypass, and unity power factor output. The M90C-2S serves 208/120 V North American infrastructure in 5 and 8 kW; the M90Ci-2S serves global 400/230 V infrastructure at 10 kW.
| Platform | Voltage | Capacity | Role |
|---|---|---|---|
| M90C-2S | 208/120 V three-phase | 5–8 kW | North American compact rack three-phase |
| M90Ci-2S | 400/230 V three-phase | 10 kW | Global 400 V compact rack three-phase |
M90C-2S & M90Ci-2S vs Eaton
Comparisons against Eaton BladeUPS (208 V and 400 V) and the traditional Eaton 93PX, covering runtime, altitude, efficiency, footprint, lifecycle status, and warranty.
Compact modular 208 V comparison — the M90C-2S roughly doubles standard full-load runtime (about 12 vs 6.1 min), runs to higher altitude without derating (5,200 vs 3,300 ft), and adds a larger 4-inch LCD, higher online efficiency, and longer warranty.
View comparison →Modular three-phase 208 V comparison at 8 kW — focused on display size (4 vs 2.6-inch LCD), higher altitude without derating, higher online efficiency (93% vs 91.5%), and longer warranty coverage.
View comparison →400 V replacement comparison for the discontinued BladeUPS — the current-production M90Ci-2S delivers full-time online double-conversion (vs double-conversion-on-demand), integrated rather than external bypass, 94.5% online efficiency, higher altitude, and TAA eligibility.
View comparison →Compact modular vs traditional three-phase — the M90C-2S uses far less rack space (6U / 31.5″ deep vs about 9U / 34.6″), runs higher without derating, and is more efficient (93% / 98% vs 91% / 97%); runtime is comparable (about 12 vs 13 min).
View comparison →M90C-2S vs Vertiv
Comparison against the Vertiv Liebert ITA2, covering service architecture, footprint, maintenance-bypass implementation, and procurement eligibility.
Compact modular 208 V comparison — the M90C-2S hot-swaps both power and battery modules (vs battery-only on the ITA2), fits 6U vs 7U, and includes integrated bypass as standard (vs an optional external cabinet), plus TAA eligibility; the ITA2 offers slightly longer standard runtime (about 14 vs 12 min).
View comparison →Where the M90C-2S / M90Ci-2S stand
Summary of the recurring differentiators across these comparisons. Runtime figures are at full load on internal batteries; confirm current competitor specifications against vendor documentation.
| Theme | Xtreme Power M90C-2S / M90Ci-2S | Typical competitor position |
|---|---|---|
| Serviceability | Hot-swap power and battery modules, front access | BladeUPS equal; ITA2 battery-only; 93PX separate cabinets |
| Maintenance bypass | Integrated, standard | External required (BladeUPS, 93PX, ITA2 optional) |
| Rack footprint | 6U | ITA2 7U; 93PX about 9U / deeper |
| Altitude (no derating) | 5,200 ft | BladeUPS 3,300 ft |
| Online efficiency | 93% (M90C-2S) / 94.5% (M90Ci-2S) | BladeUPS 91.5%; 93PX 91% |
| Full-load runtime | About 12 min (M90C-2S 5 kW) | BladeUPS about 6.1 min; 93PX about 13 min; ITA2 about 14 min |
| Warranty | 2-year standard | BladeUPS 18-month |
| Lifecycle status | Current production | BladeUPS discontinued |
| TAA (procurement) | M90C-2S: yes | BladeUPS / ITA2: no |
Runtime is one factor among many: the Vertiv ITA2 (about 14 min) and Eaton 93PX (about 13 min) offer slightly longer or comparable standard runtime than the M90C-2S (about 12 min), while the M90C-2S leads on integrated bypass, footprint, serviceability, and procurement eligibility. TAA compliance applies to the 208 V M90C-2S; confirm 400 V M90Ci-2S procurement requirements separately.
Evaluating compact three-phase UPS
Each comparison is structured to help engineers, consultants, and facility teams evaluate the factors that separate compact three-phase platforms:
When to choose the M90C-2S or M90Ci-2S
Choose the Xtreme Power M90C-2S or M90Ci-2S when your application requires:
Plan secure modular infrastructure
Xtreme Power supports specification development, modular UPS design-in, and lifecycle planning for edge, enterprise, industrial, and regulated infrastructure deployments — across both 208 V and 400 V platforms.