50kVA-70kVA
480V
High-efficiency, fully integrated UPS for data centers, industrial automation, medical imaging, and modular IT environments.
The Xtreme Power X90-1S is a compact, high-performance 480 V modular UPS engineered for critical infrastructure.
Designed around a single 50 kW or 70 kW power module, it combines scalable runtime, integrated battery system, and internal maintenance bypass — all within a 23.6″-wide footprint, the smallest in its class.
With full front service access, top cable entry, and heavy-duty casters with floor brackets, the X90-1S simplifies installation and maintenance while providing exceptional performance.
It’s the ideal UPS for data centers, industrial automation, medical imaging, and modular IT environments where space, reliability, and efficiency matter. Part of the X90 Modular UPS Series
Access detailed specifications, performance data, and installation guidance for the X90-1S UPS platform.
Datasheet (PDF)
X90-1S Product Flyer
| Parameter | X90-1S |
| Capacities | 50 kW, 70 kW |
| Topology | Online double conversion (480 V 3-phase) |
| Power Modules | Single 50 kW / 70 kW module |
| Surge Withstand | 65 kAIC |
| Efficiency | 96.5 % (online) / 99 % (ECO) |
| Battery System | Integrated; up to 11 minutes at 50 kW |
| Display | 10″ color touchscreen LCD |
| Inputs | Dual (rectifier + bypass) or single input |
| Access | Full front access, top cable entry |
| Form Factor | 23.6″ wide, 58” high cabinet with casters and floor bracket |
| Certifications | UL-1778, cUL, FCC A, RoHS, TAA |
| Warranty | 2 years electronics / 2 years battery |
The X90-1S delivers enterprise-class reliability and energy efficiency in a compact, integrated 480 V UPS that requires no external battery cabinets or rear access.
Its modular construction, top-entry cabling, and front-service design simplify deployment and maintenance in both new builds and retrofit installations.
→ Learn more about X90-1S advantages ›
→ Explore Unity Power Factor Benefits ›
X90-2S – 50–140 kW compact integrated 480V UPS with internal batteries and bypass.
X90-5S – 50–350 kW modular 480V UPS for enterprise and data center environments.
X90-10S – 50–700 kW modular 480V UPS for enterprise and data center environments.
View the complete X90 Series architecture →
https://www.xpcc.com/x90-modular-ups-series/
The X90-1S Modular 480 V UPS delivers high-efficiency protection and integrated battery backup in a smallest-in-class footprint.
Ideal for data centers, medical, and industrial automation applications requiring compact power protection with simplified maintenance.
Contact Us | View All Products | UPS Selector
(800) 582-4524
| MODEL NUMBER | X90-1S50k | X90-1S70k | |
| CAPACITY | Power rating | 50kVA/50kW | 70kVA/70kW |
| CABINET | X90-1S UPS: power modules | 50kW or 70kW | |
| CAPACITY | X90-1S UPS: battery modules | 12 or 16 battery modules | |
| X90-BC: battery modules | Up to 36 additional battery modules | ||
| INPUT | Voltage/frequency nominal | 480VAC (3W), 50/60Hz auto-sensing | |
| Voltage/frequency range | 480VAC or +20/-20% VAC three-phase, 40-70Hz | ||
| OUTPUT | Voltage/frequency range | 480VAC (3W), 50/60Hz auto-sensing | |
| Efficiency | Up to 96.5% online mode or 99% ECO mode | ||
| Overload capacity | 105%-110% for 60min; 110%-125% for 10min; 126%-150% for 1min; >150% for 200ms | ||
| BATTERY SYSTEM | Nominal voltage | +/-240VDC | |
| Charge Current (programable) | 18A | 18A | |
| DIMENSIONS & | UPS & battery cabinet (W x D x H) | 23.6 x 42 x 58 in 591 lbs (UPS) / 23.6 x 42 x 79 in 416 lbs (X90-BC) | |
| WEIGHTS | Power & battery module (W x D x H) | 17.2 x 29.5 x 5.1 in 106 lbs (PM) / 17.2 x 29.5 x 5.25 in 70 lbs (BM) | |
| ENVIRONMENT | Temperature | 0–40°C (32–104°F) | |
| Altitude | 5,200 ft above sea level | ||
| Audible noise (typical) | < 59dBA at 1m | ||
| APPROVALS | UL-1778, cUL, FCC A, RoHS, TAA | ||
| WARRANTY | 2 years (USA and Canada) | ||
| COMMUNICATIONS INTERFACE | RS-232, EPO, Relays, Intelligent slot for optional cards (Web/SNMP, Modbus) | ||