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LIEBERT® EXS™ UPS 208/220 ‑V 30 KVA

Quick Installation Guide

590-1971-501A/SL-70330_REV0

    

3

1.  On the rear panel of the UPS, 

remove the upper conduit-

entry panel, punch holes for 

the conduit, connect the 

conduit to the panel, and 

re-install the conduit-entry 

panel.

2.  Remove the lower cover plate 

to access the terminal blocks, 

shown in the “Terminal-block 

Connections” illustration above.

3.  Remove the factory-installed 

single-input jumpers from the 

input terminal blocks.

4.  Make the following 

connections from the upstream 

feeder panel to the main/

rectifier input terminal block:

•  Phase A to rA
•  Phase B to rB
•  Phase C to rC
•  Neutral to iN
•  Ground cable PE

5.  Make the following 

connections from the upstream 

feeder panel to the bypass-

input terminal block:
•  Phase A to bA

•  Phase B to bB
•  Phase C to bC
•  Neutral to iN
•  Ground cable to PE

6.  Make the following output 

connections from the UPS 

output terminal to the 

downstream distribution-panel 

main lug breaker:
•  oA to Phase A
•  oB to Phase B
•  oC to Phase C
•  oN to neutral bus
•  PE to ground bus

7.  Torque phase conductor 

connections to 50 lb-in, and 

neutral and ground conductor 

connections to 126 lb-in. 

8.  Reinstall the terminal-block 

cover plate.

BATTERY CONNECTION

The batteries are shipped 

disconnected. Refer to the diagram 

on the back of the outer battery 

panel to make the connections.

REPO CONNECTION

If a remote emergency power-off 

connection is not required, leave 

the factory-installed jumper 

between Pins 2 and 4 on the REPO 

terminal block. 
If using a REPO connection, refer to 

the detailed installation steps in the 

EXS Installer/User Guide available 

at www.VertivCo.com

POWERING THE UPS

NOTE: 

Do not start the UPS until  

after the installation is finished, all 

UPS wiring is complete, and all 

access panels removed for 

installation are replaced and 

secured on the UPS.

1.  Close the upstream feeder 

breaker for the UPS rectifier 

and, for dual-input 

configuration, close the 

upstream feeder breaker for the 

UPS bypass.

2.  Close all downstream breakers 

including distribution-panel 

main breaker and/or branch 

circuit breakers. 

3.  Referring to the illustration, 

Front-panel Breakers

, at the 

right:

Terminal-block Connections

OUTPUT TERMINALS

BATTERY TERMINALS

rA bA rB bB rC bC iN iN

oA oB oC oN oN

BATN

BAT+

BAT-

PE

INPUT TERMINALS

GROUND BUSBAR

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