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
To Next Page
Loading...
