Liebert GXT4 On-Line UPS, 1.5kVA / 1350W, 120VAC

Please note, the Liebert GXT4-series was replaced by the Liebert GXT5-Series. For additional upgrade options, contact your Server Racks Online sales representative at 1-866-722-5776.

Liebert GXT4-1500RT120 UPS is one of the most advanced battery backup solutions available on the market. Double conversion eliminates all power quality issues without any fluctuation in voltage, while automatic and manual power bypass assure continuity of power to critical loads during system maintenance or in case of internal fault. Intelligent monitoring, reporting, communication, and controllable outlet groups make remote and local power management easy. Up to six external battery cabinets can be added for extended run time and an ECO mode option allows improved energy efficiency. Mounting is flexible with rack rails and tower supports included.

Power Rating - 1500VA / 1350W
Output AC - (6) 5-15R Receptacles (110/115/120VAC, user-configurable)
Input AC - NEMA 5-15P Plug, 10ft Cord (120VAC nominal)

Liebert GXT4-1500RT120 UPS - Click to enlarge


Rack Units2U
Dimensions3.4"H x 16.9"W x 19.7"D

Learn More:
GXT4 UPS Family
GXT4 0.5 - 3 kVA Brochure (PDF)
Battery Runtimes (PDF)
Power Assurance Warranty Brochure (PDF)

The Liebert GXT4-1500RT120 UPS is a on-line double conversion power source, meaning all power quality issues such as noise, frequency, over and under voltage, that most UPS systems struggle with are eliminated. Power is always being conditioned to the connected devices so voltage will always remain constant without any drop. With manual and automatic bypass, if the UPS fails, power will transfer back to utility without any dipto protect against adverse conditions.


  • Two Controllable Outlet Groups - Can be programmed for load shedding and sequential restart if the UPS is in overload or when selected backup time remains.
  • Rotatable Display Panel-The color LCD display panel rotates 90 to make the readout easy to see in rack or tower installations.
  • Automatic Frequency Sensing
  • Mounting Flexibility - Rack rails and tower supports included.
  • Intelligent Communications - DCIM and BMS ready.

Higher Availability

  • Replaceable Hot Swappable Batteries - Easy to replace batteries to protect your investment by extending the product life. 3-7 minutes of battery backup time at full load.
  • Intelligent Battery Management - Automatic and manual self-diagnostic battery testing, efficient three-stage charging technique and comprehensive discharging protection that all extend battery life.
  • Power-Factor Correction with Advance Early Warning of UPS Status - Corrects for Frequency, prevents noise, harmonics and distortions, without switching to battery - resulting in longer battery life.
  • Input Circuit Breaker, Lightning and Overload Surge Protection, with Emergency Power Off.
  • No-hassle 2-year warranty with advanced UPS replacement including paid shipping both ways. Also available with Power Assurance Coverage package.

Low Total Cost Of Ownership:

  • High Output Power Factor - Liebert GXT4 rated output power factor up to 0.9 matches switch-mode power supplies, providing more efficient utilization of the UPS.
  • ECO Mode - Connected equipment can be powered through the bypass while the inverter remains idle, reducing electricity consumption.
  • Wide Input Voltage Window - Prolongs battery life by allowing the UPS to maximize the use of utility power before transferring to battery when input voltage exceeds specified limits.
  • Intelligent Fan Operation - Automatically changes rotation speed depending on system requirements to decrease power consumption and noise.

Liebert GXT4-1500RT120 UPS Specifications

Height3.4" (85 mm.)
Width16.9" (430 mm.)
Depth19.7" (497 mm.)
Weight54.6 lb (24.8 kg)
Rack Height2U
Input AC 
Voltage Range (typical)120VAC nominal; variable based on output load
Frequency40 - 70Hz; Auto Sensing
Input Power Cord10 ft. attached w/ NEMA 5-15P plug
Output AC 
Output Receptacles6 x 5-15R
Voltage110/115/120VAC (user-configurable); 3%
WaveformSine wave
TypeValve-regulated, nonspillable, lead acid
Qty x V x Rating4 12V 9.0Ah
Battery Part NumberGXT4-9A48BATKIT
SafetyUL 1778, c-UL Listed
Surge ImmunityIEC 62040-2 2nd Ed
TransportationISTA Procedure 1A
ENERGY STAR QualifiedYes