M90S-4S – Modular Tower or Rack Mount Online UPS
6kVA, 12kVA
208/120 VAC or 240/120 VAC Single Phase
Flexible modular UPS featuring N+1 redundancy, universal slots, and optional receptacle panels for reliable power in IT and industrial environments.
6kW-12kW | 208/120VAC Single-Phase | Modular 4 Slot Online UPS
The Xtreme Power M90S-4S is a 4-slot modular UPS enclosure designed for maximum flexibility, efficiency, and uptime. Rated for 6 kW or 12 kW, the M90S-4S provides reliable online double-conversion protection and supports both power and battery modules in the same chassis.
By combining universal slots, front-access maintenance bypass, and per-module LCD displays, the M90S-4S delivers the performance and scalability needed for critical single-phase applications.
See the full product family at the M90S Single-Phase Modular UPS overview.
Key Features & Benefits
- Universal Slot Design — Each slot accepts either a power module or battery module for maximum configuration flexibility.
- Flexible Ratings — Configure the system as 6 kW or 12 kW depending on installed power modules.
- Online Double-Conversion — Provides continuous, clean, and regulated power for mission-critical equipment.
- Front Maintenance Bypass — Manually transfer loads to utility power for safe UPS servicing without downtime.
- Power Module LCD Displays — Each power module includes its own LCD for detailed monitoring and redundancy.
- Customizable Output — Supports up to two optional output panels (5-20R, L6-20R, L6-30R, and others).
- Hot-Swappable Modules — Power and battery modules can be replaced quickly for fast service and high availability.
- 3-Year Warranty — Includes electronics and batteries (USA & Canada).
Applications
The M90S-4S UPS is the ideal choice for scalable, modular single-phase protection in critical environments:
- Video Walls & Pro AV – See UPS for Video Walls
- Broadcast / Media Systems – See UPS for Media Broadcast
- Retail & Restaurant Back-Office – See UPS for Restaurants & Retail
- Scalable Power Solutions – See Modular UPS Systems
- Replacement for Legacy Systems – See APC Symmetra LX Replacement
Comparing the M90S to Other UPS Platforms
Evaluating alternatives or standardizing across sites often requires a side-by-side comparison.
See how the Xtreme Power M90S UPS compares to APC, Eaton, Vertiv, RoseWater and Toshiba UPS platforms by voltage class, topology, runtime, and lifecycle cost.
View all M90S UPS comparisons
https://xpcc.com/m90s-modular-ups-competitive-comparisons/
Contact Us Today!
The M90S-4S delivers 6–12 kW of modular power in a flexible 4-slot chassis. With universal slots, hot-swappable modules, and per-module LCD monitoring, it’s the smart choice for AV, broadcast, retail, and IT environments where uptime is essential.
Contact Us | View All Products | UPS Selector
(800) 582-4524
| CAPACITY | Power Rating | 6kVA/6kW | 12kVA/12kW |
| INPUT | Voltage / frequency nominal | 120/208V or 120/240V & 50/60Hz auto-sensing (2PH+N+G) | |
| Voltage / frequency range | 152-269VAC* (L-L) / 40–70Hz | ||
| OUTPUT | Voltage & Frequency | 120/208V or 120/240V & 50/60Hz ± 0.1Hz; (2PH+N) | |
| Efficiency / THD (full load) | Up to 98% ECO mode, 93% online mode / ≤2% (Linear load); ≤3% (Non linear load) | ||
| Overload capacity | 100% – 110% for 30 min; 110% – 130% for 5min; 130% – 150% for 10s; > 150% for 200ms | ||
| BATTERY SYSTEM | Nominal voltage | +/-96V | |
| Max charging (adjustable) | 4A | 8A | |
| MODULE DIMENSION | 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 | Dimensions & Weight | UPS 17.4”W x 33.7”D x 33”H & 130 lbs / BC7 17.4”W x 33.7”D x 45.5”H & 162 lbs | |
| Maximum Capacity | 12kVA | ||
| Enclosure Capacity | 4 slots including 2 universal slots + 2 battery only slots | ||
| Optional Battery Enclosure | 7 slots for additional battery modules | ||
| Output Connections | Terminal blocks and/or up to 2 receptacle panels | ||
| ENVIRONMENT | Temperature | 0–40°C (32–104°F) | |
| Altitude | 5,200 ft above sea level | ||
| Audible noise | < 58dBA at 1m | ||
| APPROVALS | UL-1778 (TUV), cUL, FCC A, RoHS | ||
| WARRANTY | 3 year electronics, 3 year battery (USA and Canada) | ||
| COMMUNICATIONS INTERFACE | RS-232, USB, Dry Contacts, EPO, (2) intelligent slot for optional cards (Web/SNMP, Relay, Modbus) | ||
| INCLUDED IN BOX | User manual, USB cable, RS-232 cable, ViewPower Software, anchor brackets | ||
| AVAILABLE OPTIONS | L14-30P line cord (6kVA), receptacle panels (2 max), extended battery cabinet, 5 year extended warranty | ||
