Vertiv Liebert APM Plus - Power Cable Connection Steps

The BCB (mandatory) must be installed for protecting the external battery. The UPS provides a mandatory BCB cabinet to
provide overcurrent protection, short circuit protection and automatic tripping functions for the external battery.
This BCB is important for the battery maintenance, and is installed near the battery.
System output
The UPS output distribution shall be configured with a protective device. The protective device shall be different from the
input distribution protection switch and able to provide overload protection (refer to Table 12.6 on page175 and Table 12.7 on
page176).
N O T E: For IT grid system , 4 -p ole protective com ponents m ust be installed for the U P S external input
pow er distribution.
4.1.10 Power Cable Connection Steps
Connection terminal and cable routing method
Figure 4.2 on the next page shows the connection terminals of the UPS power cable. Figure 4.3 on page35 shows the power
cable entry and routing methods, please refer to the cabling method to route cables and then connect them to corresponding
terminals shown in Figure 4.2 on the next page.
4 Electrical Installation
32
Vertiv™ Liebert® APM Plus User Manual