Connecting Power Cables - Liebert ITA 6kVA User Manual

6 Chapter 2 Single UPS Installation And Commissioning
4. Place the UPS on the guide rails in the rack, and push it completely into the rack. Use four M6 × 16 screws to fix
the UPS in the rack through the installation hole 2, as shown in Figure 2-11.
Installation procedures for UPS with battery modules
The installation method of the battery module is the same as that of the UPS. Repeat the preceding procedures to
install and fix the battery module and UPS into the rack one by one, as shown in Figure 2-12.
As the battery module is heavy, pay attention to the following items in installation:
z Install the battery modules first, start the installation from the bottom, and then place the UPS onto the top, as
shown in Figure 2-12.
z Moving the UPS and battery modules through brackets is prohibited.
z Two persons or more are required for the installation.

2.3 Connecting Power Cables

I/O cables, battery cables and external 10A charger cable (optional) are required for connection. When connecting
the cables, you should follow the local wiring regulations, take the environment situation into account, and refer to
Table 3B of IEC60950-1.
The max. current in different operating modes is listed in Table 2-1, and the recommended min. cable CSAs for users
are listed in Table 2-2. Select appropriate cables according to Table 2-1 and Table 2-2.
Model
6kVA
(1-in 1-out)
6kVA
(3-in 1-out)
Note:
When selecting the battery cables, according to the current value shown in table, the max. allowable voltage drop is 4Vdc. Do not
ring the cables to avoid increasing the electromagnetic interference (EMI).
1: The mains current input of the rectifier and bypass.
2: Non-linear load (switch power) affects the neutral cable design of output and bypass. The neutral cable current may exceed
the rated phase current, in general, 1.732 times as large as the rated current
Rack
Screw
(4 pcs)
Figure 2-11 Installing UPS
UPS
Battery
module
Figure 2-12 Installation of UPS with battery module
Table 2-1 Max. steady state AC and DC current
1 2
Mains input current , upon battery
charging with max. ability
220V 230V
31 31
13 13
Liebert
®
UPS
Installation
hole (4 pcs)
Rated current (A)
Gross output current
220V
27
27
ITA 6kVA UPS User Manual
2
at full load Battery discharging current upon
min. battery voltage
230V
26
26
38
38