Installation
25
Liebert
®
APS
™
2.5
Cable Connection
Refer to the unit model number in
Table 2
to determine which instructions to use for installation.
2.5.1
Transformer-Free UPS Cable Connection
A junction box is factory-installed on each model of the Liebert APS to ease cable connection.
Select the appropriate input cables according to
Table 3
and
Table 4
based on the UPS rating and
mains frequency; however, it is recommended that you size the over current protection and wiring for
the frame rating to easily allow upgrades to the UPS system.
!
WARNING
Risk of electric shock. Can cause injury or death.
Disconnect local and remote power supplies before working within.
Read this section thoroughly before attempting to install wiring to this unit.
Ensure that all the UPS input sources are disconnected off before attempting to install wiring
to this unit.
This UPS cables should be connected by a properly trained and qualified electrician.
Table 2
Cable connection method reference
UPS Model #
Digits 1-3
Frame Type
Manual
Section
AS1 or ASA
10 Bay Transformer-free
2.5.1
AS2 or ASB
16 Bay Transformer-free
2.5.1
AS3 or ASC
12 Bay Transformer-based
2.5.2
AS4 or ASD
16 Bay Transformer-based
2.5.2
AS5 or ASE
10 Bay Transformer-free
2.5.3
AS6 or ASF
16 Bay Transformer-free
2.5.3
Table 3
Input cable selection list—60Hz
Maximum
System
Rated Load
Input voltage - 200VAC
Input voltage - 208VAC
Input voltage - 240VAC
Maximum
Current in
UPS Mode
Recommended
Input Protection
Circuit Breaker
Maximum
Current in
UPS Mode
Recommended
Input Protection
Circuit Breaker
Maximum
Current in
UPS Mode
Recommended
Input Protection
Circuit Breaker
5kVA
27A
50A
26A
50A
23A
50A
10kVA
53A
70A
51A
70A
45A
70A
15kVA
80A
100A
77A
100A
67A
100A
20kVA
106A
125A
102A
125A
90A
125A
The power input and output terminals accept a maximum cable cross-sectional area of 35mm
2
(2AWG); the minimum cable
cross-sectional area is 16mm
2
(6AWG); the rated torque is 4.52Nm (40 in-lb).
Use of 90°C copper wire is recommended
Table 4
Input cable selection list—50Hz
Maximum
System Rated
Load
Input Voltage - 220VAC
Input Voltage - 230VAC
Input Voltage - 240VAC
Maximum
Current in
UPS Mode
Recommended
Input Protection
Circuit Breaker
Maximum
Current in
UPS Mode
Recommended
Input Protection
Circuit Breaker
Maximum
Current in
UPS Mode
Recommended
Input Protection
Circuit Breaker
5kVA
25A
63A
24A
63A
23A
63A
10kVA
49A
63A
47A
63A
45A
63A
15kVA
73A
100A
70A
100A
67A
100A
20kVA
97A
125A
93A
125A
90A
125A
The power input and output terminals accept a maximum cable cross-sectional area of 35mm
2
(2AWG); the minimum cable
cross-sectional area is 16mm
2
(6AWG); the rated torque is 4.52Nm (40 in-lb).
90°C copper wire recommended
Summary of Contents for Liebert APS
Page 1: ...AC Power For Business Critical Continuity Liebert APS User Manual 5 20kVA Modular UPS ...
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Page 101: ...Specifications 93 Liebert APS NOTES ...
Page 102: ...Specifications Liebert APS 94 ...
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