Vertiv Liebert APS series User Manual

Figure 2.11 External battery cabinet
2.4 Operating Principle
The operating principle of the Liebert APS UPS is shown in Figure 2.12 below.
The UPS is composed of AC input, EMI filter, power module(s), battery module(s), user interface, control
interface, system control module, output and bypass contactor, manual bypass, output transformer
(certain frames only) and AC output.
Figure 2.12 Operating principle diagram
Vertiv | Liebert® APS™ Installer/User Guide | 21

Vertiv Liebert APS series Specifications

General

Brand	Vertiv
Model	Liebert APS series
Category	UPS
Language	English