Connecting I/O Cables - Liebert ITA 6kVA User Manual

Model
6kVA (1-in 1-out)
6kVA (3-in 3-out)
The recommended capability of the UPS I/O MCB is listed in Table 2-3, select appropriate I/O MCB according to your
requirements.
Model
6kVA
(1-in 1-out)
6kVA
(3-in 1-out)
1. The UPS is high leakage current equipment, it is not recommended to configure the MCB with leakage current protection
function.
2. To ensure the reliable connection, the pipe type connection terminal (accessory of the UPS) is required for all cable
connections.

2.3.1 Connecting I/O Cables

Notes
1. Do not reverse the input neutral line and live line!
2. Do not use a wall socket to feed power to the UPS. Otherwise, the socket may be burned.
3. Connect the output neutral line, live line and ground line correctly and reliably. For the sake of safety, the output
ground line must be connected before the output neutral line and live line.
4. Install a three-pole or quadrupole linkage breaker on the mains input neutral line and live line to facilitate cutting
power in emergency. Adopt correct power distribution method (see Figure 2-13) to ensure safety of the UPS and
loads.
The power cables of the UPS should be connected through the I/O terminal block located on the UPS rear panel.
Remove the protective cover of the I/O terminal block, you will see layout of the I/O terminal block shown in
Figure 2-14
Table 2-2 Single UPS cable CSA (unit: mm
Input
6
6
Table 2-3 UPS I/O MCB selection
Recommended capability
Input interface
of input external MCB
Terminal block
Terminal block
U
Input live line
V
W
Input neutral line
N
Three-pole or quadrupole
linkage breaker
E
Figure 2-13 Correct power distribution method
Liebert
®
Chapter 2 Single UPS Installation And Commissioning
2
, ambient temperautre: 25°C
Output Neutral line
6 6
6 6
Battery MCB
63A DC63A
63A DC63A
Note
Output live line
U
P
neutral line
S
ITA 6kVA UPS User Manual
PE
6
6
Recommended capability
Output interface
of output external MCB
Terminal block
Terminal block
Load
Output
7
Battery
6
6
40A
40A