T91i Online UPS



Unity power factor tower UPS provides high density online power protection for unstable power conditions.


T91i UPS provides double conversion online power for light industrial applications, point of sale, servers, voice & data networks, and laboratories. T91i features unity output power factor to support up to 43% more critical loads than typical UPSs.

Extended battery runtimes are available from the T91i by adding up to seven matching battery packs.

T91i battery charger can be programmed to provide up to 8 amps of recharge current to insure batteries are
recharged quickly and prepared for the next utility outage.

Product Snapshot

  • Available models: 2000VA, 3000VA
  • Extended battery packs available
  • CE, RoHS, TAA compliant
  • 3 years electronics, 3 years battery warranty (USA and Canada)
MODEL NUMBER T91i-2000 T91i-3000
INPUT Capacity 2000VA (2000W) 3000VA (3000W)
Voltage 208VAC nominal (110–300VAC)*
Frequency 50/60Hz auto sensing
Power factor >0.99 at full load
OUTPUT Voltage 208VAC nominal (200, 220, 230, 240 selectable)**
Waveform Sine wave, zero transfer time
Frequency 50/60Hz auto-sensing ≤ 1%
Efficiency Up to 98% ECO Mode and 92% online mode
Overload capacity > 110% & ≤ 130% for 5 min; > 130% & ≤140% for 30 sec; >140% for 1.5 sec
BATTERY Battery type (6) 12V 9AH
Recharge 3 hours to 95% for internal battery with 2A charge current
PHYSICAL UPS dimensions (W x D x H) 7.4" x 16.5" x 12.5" (W x D x H)
UPS weight 62 lbs 66 lbs
Line cord 8 ft, C19 to L6-20P
Receptacles (1) C19 + (8) C13
Dimensions (W x D x H) 7.4" W x 16.5" D x 12.5" H
Weight   82 lbs
ENVIRONMENT Temperature 32–104°F (0–40°C)
Audible noise < 50 dB with fan speed control
Altitude 11,500 ft above sea level
WARRANTY 3 years electronics, 3 years battery warranty (USA and Canada)
COMMUNICATIONS INTERFACE RS-232, USB, EPO, intelligent slot for optional cards (Web/SNMP, Relay/dry contact, Modbus)
INCLUDED IN BOX ViewPower monitoring software CD, USB cable, user manual
AVAILABLE OPTIONS Extended warranty, bypass distribution (XBDM), power distribution (XPDU)

*Voltage range is load dependent. **Capacities are based on highest selectable voltage. Some models derate at lower voltages.