Liebert NX User Manual

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Liebert
®
NX
™
35
5.3.6 Emergency Power Off (EPO)
The external emergency stop facility is identical to that described for the single unit installation—
that an individual emergency stop button is provided for each unit.
Figure 19 Connecting EPO push button
Remote EPO
(Customer-Supplied)
Remote EPO
(Customer-Supplied)
SINGLE MODULE
TWO MODULES IN PARALLEL
Liebert NX Monitor Board
Liebert NX Monitor Board
Liebert NX Monitor Board
EPO_NO
EPO_NC
+12V
+12V
X2_J28
1
2
3
4
EPO_NO
EPO_NC
+12V
+12V
X2_J28
EPO_NO
EPO_NC
+12V
+12V
X2_J28
1
2
3
4
Field-Supplied Wiring
U3839652
Rev. 0

Liebert NX Specifications

General

Frequency	50/60 Hz
Topology	Double Conversion/Online
Input Voltage	208, 220, 240 VAC
Output Voltage	208, 220, 240 VAC
Battery Type	VRLA
Operating Temperature	0 to 40°C (32 to 104°F)
Humidity Range	0 to 95% (non-condensing)