M90S-4S Modular Online UPS

6kVA/6kW, 12kVA/12kW

208/120VAC Single-Phase Online UPS

Modular, Flexible UPS for Continuous Power Availability.

Xtreme Power M90S UPS is a scalable, modular, flexible solution that combines continuous power availability and the highest efficiency for mission critical applications.

M90S provides unity power factor output (kVA = kW) providing maximum usable power and avoids any need to oversize the UPS. Maintenance bypass and output distribution within the UPS frame eliminate the need for external component connections, reducing installation costs.

Capacity, redundancy, battery runtime, and output receptacles can all be customized to meet your specific needs. Hot swappable power and battery modules provide rapid maintenance and repair.

Product Snapshot

  • Two capacities: 6kVA/6kW, 12kVA/12kW
  • Modular for capacity or redundancy
  • Unity output power factor (kVA =kW)
  • Hot swappable power and battery modules
  • Up to 98% ECO mode or 93% online efficiency
  • 3 years electronics, 3 years battery warranty (USA and Canada)

To receive a quote on M90S-4S UPS contact a sales representative at [email protected]




CAPACITY Power Rating6kVA/6kW 12kVA/12kW
INPUTVoltage / frequency nominal 120/208V or 120/240V & 50/60Hz auto-sensing (2PH+N+G)
Voltage/frequency range152-269VAC* (L-L) / 40–70Hz
OUTPUT Voltage/Frequency120/208V or 120/240V & 50/60Hz ± 0.1Hz; (2PH+N)
Efficiency / THD (full load)Up to 98% ECO mode, 93% online mode
Overload capacity100% – 110% for 30 min; 110% – 130% for 5min; 130% – 150% for 10s; > 150% for 200ms
BATTERY SYSTEMNominal voltage+/-96V
Max charging (adjustable)4A8A
MODULE DIMENSION & WEIGHT16.3”W x 24”D x 5.2”H / 49.6 lbs
Battery module16.3”W x 24”D x 5.2”H / 115 lbs
SYSTEM ENCLOSUREDimensions & WeightUPS 17.4”W x 33.7”D x 33”H & 150lbs / BC7 17.4”W x 33.7”D x 45.5”H & 162lbs
Maximum Capacity "4 slots including 2 universal slots + 2 battery only slots"
Enclosure Capacity12kVA
Optional Battery Enclosure7 slots for additional battery modules
Output ConnectionsTerminal blocks and/or up to 2 receptacle panels
ENVIRONMENTTemperature0–40°C (32–104°F)**
Altitude5,200 ft above sea level**
Audible noise< 58dBA at 1m
WARRANTY3 year electronics, 3 year battery (USA and Canada)
COMMUNICATIONS INTERFACERS-232, USB, Dry Contacts, EPO, (2) intelligent slot for optional cards (Web/SNMP, Relay, Modbus)
INCLUDED IN BOXUser manual, USB cable, RS-232 cable, ViewPower Software, anchor brackets
extended warranty output distribution4-post rail kit2-post shelf kit"
*Depending on load level **Battery Life is reduced above 30°C, UPS Capacity derates above 30°C and 5,200 ft above sea level.
M90S-4S Product Flyer
M90S User Manual
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