T91 Series Tower Online UPS

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  • Regular price $559.00


T91 UPS provides double conversion online power for light industrial applications, point of sale, servers, voice & data networks, and laboratories. T91 features unity output power factor to support up to 43% more critical loads than typical UPSs.

Extended battery runtimes are available from the T91 by adding up to seven matching battery packs.
T91 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 120V models: 700VA, 1000VA, 1500VA, 2000VA, 3000VA
  • Available 208/230V model: 2000VA
  • Extended battery packs available
  • Controlled load segments
  • UL, cUL, CE, RoHS, FCC B, FCC A
  • 3 years electronics, 3 years battery warranty (USA and Canada)

FEATURESpage1image3934010592 page1image3934010864

Unity output power factor— T91 provides industry highest real power rating

Extended battery packs— optional matching battery cabinets available for runtimes up to 4 hours.

Charging current2A to 8A, adjustable from LCD display

Fast Recharge—up to 95% in just 3 hours

Generator compatibility— wide input voltage and frequency windows allow reliable generator compatibility

Multiple communications capability—RS-232, USB, and optional Web/SNMP, Relay/dry contact and Modbus cards

Load shedding capabilities— maximize up time for critical loads and equipment by shedding less critical loads

Emergency power off—allows for compliance with the highest of application safety standards

$50,000 load protection policy—protection against damaged connected equipment


MODEL NUMBER T91-700 T91-1000 T91-1500 T91-2000 T91-3000 T91i-2000
INPUT Capacity 700VA (700W) 1000VA (1000W) 1500VA (1450W) 2000VA (1930W) 3000VA (2880W) 2000VA (2000W)
Voltage range 55–150VAC* 110–300VAC*
Frequency 50/60Hz auto sensing
OUTPUT Voltage 120VAC nominal (100/110/115/127VAC selectable)*** 208/220/230/240VAC***
Waveform Sine wave, zero transfer time
Frequency 50/60Hz auto sensing ≤ 1%
Efficiency Up to 98% ECO Mode and 92% online mode
Overload capacity 125% for 1 min, 150% for 10 sec
BATTERY Battery type (2) 12V9AH (3) 12V9AH (3) 12V9AH (6) 12V9AH (6) 12V9AH  (6) 12V9AH
Recharge 3 hours to 95% for internal battery with 2A charge current
PHYSICAL UPS dimensions (W x D x H) 5.6 x 15.6 x 8.6 in 7.4 x 16.5 x 12.5 in
UPS weight 25.7 lbs 30 lbs 34.3 lbs 63 lbs 66 lbs 62 lbs
Line cord 6ft, 5-15P 6ft, C19 to L5-20P 6ft, L5-30P 6 ft, C19 to L6-20P
Receptacles (6)  5–15R* (1) L5-20R + (8) 5-20  (1) L5-30R + (8) 5-20R (1) C19 + (8) C13
OPTIONAL BATTERY PACKS Model number N/A T91-BP36A T91-BP72A
BP dimensions (W x D x H) N/A  5.6 x 15.6 x 8.6 in 7.4 x 16.5 x 12.5 in
BP weight N/A 44 lbs 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
APPROVALS UL1778 (cTUVus), FCC B, RoHS UL1778 (cTUVus), FCC A, RoHS  CE, RoHS
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) 

*T91-2000 is also available with an L5–20P input and (1) L5–20R + (10) 5–15R output. **Depending on load level. ***T91 capacity derates 10% at 110VAC and 20% at 100VAC output voltage.