Brochure

System Monitoring
The Liebert
®
RX™ is available with two monitoring options: at
the panelboard level with Current Plus Monitoring (CPM) and
at the panelboard level and the branch circuit level with Liebert
Distribution Monitoring (LDMF).
Panelboard Monitoring:
The integral Current Plus Monitoring (CPM) optional display
monitors the current and voltage of the panelboard. The
display includes a monochrome LCD, power and alarm LEDs,
audible alarm, and a silence push button. It provides true RMS
measurements and battery backed memory.
Monitored parameters include:
Branch Circuit Monitoring:
Advanced monitoring is available through the optional Liebert
Distribution Monitoring (LDMF) display. This option provides
a large LCD screen that allows viewing of monitored information
for the panelboard as well as each individual branch circuit
breaker. Alarm data may be viewed from this display for up-to-
date breaker status. It provides true RMS measurements and
battery backed memory.
Monitored parameters are the same as those for the CPM
monitor, plus for each branch circuit:
Centralized Monitoring
An optional Liebert SiteScan
®
interface allows centralized monitoring
of the Liebert RX.
A Liebert IntelliSlot
®
communications card may be
installed to allow monitoring
through a Building Management
System (BMS). RJ-45 Ethernet and
BACnet options are available.
Voltage - Line-to-Line
Voltage - Line-to-Neutral
Neutral Current
Ground Current
kVA
Power Factor
Voltage Total Harmonic
Distortion (THD)
Current Total Harmonic
Distortion (THD)
Crest Factor
Phase Current
kW
kW- hours
Percent load
Double, 1’x4’,
168pole, 2x400A
Wall mounted
Back supported
Double, 2’x2’,
168pole, 2x400A
Free standing
Drop-in replacement
for oor tile
Triple, 2’x3’,
252pole, 3x400A
Free standing
Panelboards front,
rear, one side
Quadruple, 2’x4’,
336pole, 4x400A
Free standing
Panelboards front,
rear, both sides
High-Availability Configurations
The exible Liebert RX is easily congured to
accommodate current site needs and future growth.
Single, 1’x2’,
84pole, 400A
Wall mounted
Back supported by column,
unistrut, or wire cage
Power Distribution Systems
37