5kVA / 8kVA
208/120 VAC Three-Phase
High-efficiency modular UPS with maintenance bypass, optional receptacle panels, and TAA compliance for continuous power in IT and industrial environments.
The Xtreme Power M90C-2S is a TAA-compliant modular UPS designed for federal agencies, defense facilities, small data centers, and enterprise IT environments where secure, high-efficiency, three-phase power is essential. Featuring a dual-slot chassis (one power module and one battery module) in just 6U of rack or tower space, the M90C-2S delivers scalable runtime, unity power factor output, and up to 98 percent efficiency in one of the smallest footprints in its class.
The M90C-2S is frequently evaluated as a modern alternative to traditional three-phase UPS platforms from Eaton and Vertiv in space-constrained and regulated deployments.
Unlike many competing modular UPS products, the M90C-2S is fully TAA compliant, ensuring eligibility for GSA contracts, Department of Defense deployments, VA facilities, federal data centers, and government-funded infrastructure projects. It delivers secure, trusted power protection while meeting procurement standards without waiver requirements.
| Feature | Details |
| Capacity | 5 kW or 8 kW |
| Voltage | 208/120 V Three-Phase |
| Power Factor | 1.0 (Unity) |
| Topology | Online Double-Conversion |
| Efficiency | 98% ECO / 93% Online |
| Chassis Slots | 2 (1 Power + 1 Battery) |
| Bypass | Integrated Maintenance Bypass |
| Input Options | Hardwired or Plug (L21-20R / L21-30R) |
| Compliance | UL, CE, RoHS, TAA Compliant |
| Warranty | 2-Year Parts & Labor (USA & Canada) |
The M90C-2S provides continuous, three-phase power protection for:
Organizations evaluating the M90C-2S often compare it to traditional three-phase UPS platforms from Eaton and Vertiv. Key evaluation criteria typically include modular serviceability, rack footprint, integrated maintenance bypass, altitude performance, efficiency, and eligibility for federal or regulated procurement.
To view side-by-side comparisons across these criteria, visit the M90C-2S comparison hub.
View all M90C-2S UPS comparisons
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https://xpcc.com/modular-ups-systems/
The M90C-2S combines TAA compliance, high efficiency, and modular scalability in the smallest three-phase UPS footprint available—making it the ideal solution for federal facilities, data centers, and mission-critical infrastructure.
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| MODEL NUMBER | M90C-2S5K | M90C-2S8K | |
| CAPACITY | Power Rating | 5kVA/5kW | 8kVA/8kW |
| INPUT | Voltage/frequency nominal | 120/208V, 50/60Hz auto-sensing (3PH+N+G) | |
| Voltage/frequency range | 152-269VAC* (L-L) / 40–70Hz | ||
| OUTPUT | Voltage / Frequency | 120/208V, 50/60Hz ± 0.1Hz; (3PH+N) | |
| THD (full load) | ≤2% (Linear load); ≤3% (Non linear load) | ||
| Efficiency | Up to 98% ECO mode, 93% online mode | ||
| Overload capacity | 100% – 110% for 30 min; 110% – 130% for 5min; 130% – 150% for 10s; > 150% for 200ms | ||
| BATTERY SYSTEM | Nominal voltage | +/-96Vdc or +/-120Vdc (+/-96Vdc default) | |
| Max charging (adjustable) | 4A | ||
| MODULE DIMENSIONS | Power module | 16.3”W x 24” D x 5.2”H / 38 lbs | |
| & WEIGHT | Battery module | 16.3”W x 24”D x 5.2”H / 107 lbs | |
| SYSTEM ENCLOSURE | M90C-2S enclosure | 17.3”W x 31.5”D x 10.5”H (6U) / 34 lbs | |
| Input connections | Terminal blocks or L21-20P line cord | Terminal blocks or L21-30P line cord | |
| Output connections | Terminal blocks or optional output receptacles | ||
| ENVIRONMENT | Temperature | 0–40°C (32–104°F) | |
| Altitude | 5,200 ft above sea level | ||
| Audible noise | < 58dBA at 1m | ||
| APPROVALS | UL-1778, cUL, FCC A, RoHS, TAA compliant | ||
| WARRANTY | 2 year warranty (USA and Canada) | ||
| COMMUNICATIONS INTERFACE | RS-232, USB, EPO, intelligent slot for optional cards (Web/SNMP, Relay, Modbus) | ||
| INCLUDED IN BOX | User manual, USB cable, R2-232 cable, ViewPower Software | ||
| AVAILABLE OPTIONS | L21-20P or L21-30P line cord, receptacle panel, extended battery cabinet, caster base, 5 year extended warranty, 4-post rail kit | ||