Xtreme Power Conversion E90

10kVA, 15kVA, & 20kVA

Online Tower UPS // 208/120VAC Three-Phase

E90 UPS provides economical three phase double conversion power for small data centers, network closets, retail stores, servers and industrial applications.

E90 features unity output power factor to support up to 25% more critical loads than similar competitive UPS. Up to 50% smaller than competitive units, the E90 provides an all-in-one, energy efficient solution.

Extended battery runtimes are available from the E90 by adding up to four matching battery packs. E90 battery charger can be programmed to provide up to 20 amps of recharge current to ensure batteries are recharged quickly and prepared for the next utility outage.

Product Snapshot

  • Available models: 10kVA, 15kVA, 20kVA
  • Unity power factor
  • Parallel operation
  • Extended battery runtimes with optional matching battery modules
  • UL1778, cUL, FCC Class A, Energy Star
  • 2 years electronics, 2 years battery warranty (USA and Canada)


MODEL NUMBER E90-10k E90-15k E90-20k
CAPACITY Power Rating 10kVA(10kW) 15kVA (15kW) 20kVA (20kW)
INPUT Voltage / Range 208/120VAC or 220/127VAC / 125-275VAC*
Frequency 40–70Hz auto-sensing
OUTPUT Voltage / Regulation 208/120VAC or 220/127VAC / ± 1%
Frequency 50/60±0.1%
Efficiency Up to 94.5% online mode or 98% ECO mode
Overload capacity 150% for 1 min, 125% for 10 min, 110% for 60 min
BATTERY Battery type Sealed, maintenance-free lead acid
Battery Quantity Up to (60) 12V 9AH
Charger Voltage / Current 273VDC / 1A-20A (max) programmable from LCD
PHYSICAL Dimensions (W x D x H) 9.8 x 39.2 x 34.0 in
Input/Output Terminal blocks
Weight 296 lbs 419 lbs 539 lbs
Battery quantity and size (80) 12V 9AH
Dimensions (W x D x H) 9.8 x 39.2 x 34.0 in
Weight 535 lbs
ENVIRONMENT Operating temperature 32–104°F (0–40°C)
Audible noise Less than 55dB from 1M distance for 10/15kVA; Less than 58dB from 1M distance for 20kVA
Altitude 5,200 ft above sea level**
APPROVALS UL1778, cUL, FCC Class A, Energy Star
WARRANTY 2 years electronics, 2 years battery warranty (USA and Canada)
COMMUNICATIONS INTERFACE RS-232, EPO, RS485, USB, dry contact, (2) slots for optional cards (Web/SNMP, Relay/dry contact)
INCLUDED IN BOX User manual, RS-232 communication cable, USB cable, Muser monitoring software
AVAILABLE OPTIONS External maintenance bypass, output distribution, external battery packs, parallel cable

*Depending on load level.

**Battery life is reduced above 30°C, UPS capacity derates above 40°C and 5,200 ft above sea level