Vertiv LIEBERT GXT5 Series Installer And User Guide

3.7.3 Connecting a Remote Emergency Power Off (REPO) Switch
The UPS includes an EPO connection in the dry contact port. See the appropriate figure for your model in Rear Panels on
page5, for the location of the port.
UPS ships with a REPO jumper installed, allowing the UPS to operate as a normally-closed switch system (fail-safe). Opening
the circuit disables the UPS. To connect a REPO switch that opens the circuit to shut down the rectifier and inverter and
power off the UPS, use a cable from the remote switch to plug into the REPO port on the UPS.
In normal conditions, the REPO switch cannot cut off the UPS input power. When the REPO switch trips, the UPS generates an
alarm and immediately cuts-off output power. When the emergency condition is resolved, the UPS will not return to normal
operation until you reset the REPO switch and manually power on the UPS.
To make the cable for the REPO connection:
Figure 3.6 below, shows the cable required to make the connection. We recommend using 18 AWG to 22 AWG (0.82 mm
2
to
0.33 mm
2
) copper core cable.
1. Remove the insulation from the end of two wire.
2. Insert the stripped end into the plug terminals 1 and 2 respectively, then screw down the terminals. Make sure
that the cables are secure in the plug to prevent failure because of loose contact.
To connect a UPS to the REPO switch.
CAUTION: To maintain safety (SELV) barriers and electromagnetic compatibility, signal cables should be
shielded and run separately from power cables.
1. Connect one end of the cable to the remote switch, see Figure 3.6 below.
2. Remove the factory installed jumper from pins 7 and 8 of the dry contact port on the UPS
3. Connect the plug to pins 7 and 8.
Figure 3.6 Cable/Plug for Connecting REPO Switch to UPS REPO Port
Item Description
1 Terminal 1
2 Terminal 2
4 Plug (connects to REPO port on UPS)
4 REPO switch
3.7.4 Connecting a USB Cable
The UPS includes a USB connector. See the appropriate figure for your model in Rear Panels on page5, for the location of the
port.
28 Proprietary and Confidential ©2024 Vertiv Group Corp. 3 Installation
Vertiv™ Liebert® GXT5 UPS Installer/User Guide

Vertiv LIEBERT GXT5 Series Specifications

General

Model	LIEBERT GXT5 Series
Product Type	UPS
Topology	Double Conversion Online
Display	LCD
Form Factor	Tower, Rackmount
Output Voltage	200/208/220/230/240 VAC
Output Frequency	50/60Hz ±0.1Hz (battery mode)
Typical Backup Time	Varies by model and load
Communication Ports	USB, RS-232
Operating Temperature	0°C to 40°C (32°F to 104°F)
Relative Humidity	0% to 95% (non-condensing)
Dimensions	Varies by model
Weight	Varies by model
Certifications	UL, cUL, CE, RoHS
Battery Type	Valve Regulated Lead Acid (VRLA)