X90-1S Modular UPS – 50–70kW 480V Integrated UPS System
50–70 kW | 480V | Modular Three-Phase UPS
Compact, fully integrated 480V UPS system designed for critical infrastructure requiring high performance, simplified deployment, and reduced footprint at lower power levels.
Modular Three-Phase UPS · 480V Integrated
X90-1S Modular UPS
A compact, fully integrated 480V UPS system for critical infrastructure that needs high performance, simplified deployment, and a reduced footprint at lower power levels. Online double-conversion protection with power modules, batteries, and maintenance bypass in a single cabinet.
↓ Download the X90-1S datasheet (PDF)
Key specifications
One cabinet, fully integrated
The X90-1S is designed for 480V environments that need compact deployment without sacrificing a simplified, integrated architecture. Power module, batteries, and maintenance bypass are contained within a single enclosure — eliminating separate battery cabinets in many applications, reducing infrastructure complexity, and delivering reliable protection in a smaller footprint. Each X90-1S is built around a single 50 kW or 70 kW power module; for higher capacity in a similar integrated design, the family steps up through the X90-2S, X90-5S, and X90-10S.
What defines the X90-1S
Integrated battery system
Internal runtime supporting up to 11 minutes at 50 kW load — in a single cabinet, no external battery enclosure required for many deployments.
Compact all-in-one footprint
Only 23.6″ wide, with internal maintenance bypass and batteries — the smallest footprint in its class.
High-efficiency operation
Up to 96.5% in online mode and 99% in ECO mode, reducing energy cost in continuous-duty operation.
Full front access
No rear clearance needed for maintenance or service — supports against-wall and tight-room installs.
Dual or single input
Flexible input configuration supports varied site electrical architectures.
10″ color touchscreen
Intuitive interface for real-time status and alarm monitoring.
Heavy-duty casters + floor bracket
Simplifies positioning and secures the unit in place once sited.
Top cable entry standard
Streamlines installation in tight or overhead cabling environments.
The X90 platform family
X90-1S is the compact integrated platform within the X90 family — used in distributed infrastructure, industrial environments, and smaller data-center deployments where space and simplicity are critical. The family scales on a shared architecture:
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See the full platform: X90 Modular UPS Series →
Integrated, not multi-cabinet
Traditional UPS systems in this power range often require separate battery cabinets or larger enclosures — increasing footprint and installation complexity. The X90-1S integrates runtime and maintenance bypass into a single cabinet, enabling simplified deployment while maintaining full system performance, for improved power density and reduced installation requirements.
Compare the X90-1S against Eaton 93PM, APC Galaxy VS, and Vertiv APM2: X90-1S UPS comparisons →
Integrated runtime, extendable with X90-BC
The integrated battery system provides internal runtime suitable for generator ride-through and short-duration outages. Hot-swappable components support maintenance without system downtime. For longer runtime, the optional X90-BC battery cabinet adds up to 36 battery modules.
| Battery modules → | 8 | 12 | 16 | 20 | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 kW load | – | 7 | 11 | 15 | 18 | 22 | 26 | 30 | 34 | 38 | 43 | 47 |
| 70 kW load | – | – | 7 | 10 | 12 | 15 | 17 | 20 | 23 | 26 | 28 | 31 |
Runtimes in minutes; vary with battery age and site conditions. Modules 8–16 are internal to the UPS cabinet (12 or 16 installed); shaded columns (20–52) require the optional X90-BC battery cabinet.
Model selection & technical summary
| Model | Power module | Power rating | Internal battery modules |
|---|---|---|---|
| X90-1S50k | 50 kW | 50 kVA / 50 kW | 12 or 16 |
| X90-1S70k | 70 kW | 70 kVA / 70 kW | 12 or 16 |
Shared specifications
- Topology: Online double-conversion (continuous, conditioned output)
- Capacity: 50 kW or 70 kW (single power module; kVA = kW)
- Input: 480VAC (3W), 50/60 Hz auto-sensing; range 480VAC ±20%, 40–70 Hz; dual or single input
- Output: 480VAC (3W), 50/60 Hz auto-sensing
- Efficiency: Up to 96.5% online mode; 99% ECO mode
- Overload: 105–110% for 60 min; 110–125% for 10 min; 126–150% for 1 min; >150% for 200 ms
- SCCR: 65 kAIC breakers (input, output & maintenance bypass)
- Battery: ±240 VDC nominal; 12 or 16 internal modules; programmable charge current 18 A; module = 10× 12V 580W
- Extended runtime: Optional X90-BC cabinet adds up to 36 battery modules (52 total)
- UPS cabinet (W×D×H): 23.6 × 42 × 58 in · 591 lbs
- X90-BC cabinet (W×D×H): 23.6 × 42 × 79 in · 416 lbs
- Module size: Power module 17.2×29.5×5.1 in / 106 lbs · battery module 17.2×29.5×5.25 in / 70 lbs
- Display: 10″ color touchscreen
- Environment: 0–40°C (32–104°F); up to 5,200 ft; < 69 dBA at 1 m
- Communications: RS-232, EPO, relays, intelligent slot for optional Web/SNMP or Modbus card
- Approvals: UL-1778, cUL, FCC Class A, RoHS, TAA
- Warranty: 2 years (USA & Canada)
- Included: User manual, RS-232 cable, unloading ramp, ViewPower software
- Options: External maintenance bypass, battery temperature sensor
Need protection inside the rack?
Ai90 — rack-integrated three-phase UPS
The Ai90 delivers the same 480V three-phase protection in the same 50–70 kW class as the X90-1S — but rack-mounted instead of floor-standing, and it adds integrated output distribution. Power conversion, batteries, bypass, and a PDU live in a single rack system, sized for high-density compute and AI infrastructure where the UPS belongs in the rack.
Where the X90-1S is deployed
Larger X90 platforms & related guides
Plan with confidence
Xtreme Power Conversion supports engineers, consultants, and facility operators with UPS sizing, infrastructure design, and system-modernization planning.
| 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) | ||
