Emerson Liebert NX User Manual

Battery Installation
18
2.3.3 Dimensions
The external dimensions are shown in Table 8. These are the same height and depth as the UPS
module and provide a matching appearance when bolted together. All cabinets are fitted with doors,
which must be fully opened in order to fit or remove the batteries. The door swing must therefore be
taken into consideration when planning the positioning of the cabinets.
2.3.4 Weight
The unladen weight is shown below in Table 8. When designing the battery installation the weight of
the batteries and cables must be added to the unladen weight. This is particularly important when
placing the NX on a raised floor.
2.3.5 Circuit Isolator Features
The UPS is fitted with Anderson connectors and fuses for connection and disconnection of internal
batteries. External battery banks require battery fuses or circuit breaker (with optional status con-
tacts). Refer to 1.8.3 - External Circuit-Breaker Interface for details.
2.3.6 Battery Temperature Sensor (Optional)
The optional external battery temperature sensor kit contains one probe and one temperature trans-
port board as illustrated in Figure 7. It is connected to the UPS Monitor Board.
Figure 7 Single temperature sensor and monitor board-U2
2.3.7 Moving the Battery Cabinets
Ensure that the weight is within the designated surface weight loading of any handling equipment.
See Table 8 for weight details.
Battery cabinets can be handled by means of a fork lift or similar equipment.
Seismic anchors option is available for anchoring the unit to a concrete floor.
Table 8 Dimensions and weight
Model
Optional
Circuit Breaker
Amperes
Maximum
Discharge Current
(at EOD)
External Cabinet
WxDxH mm (in)
Cabinet Weight
Without Batteries
kg (lb)
Battery Cabinet 50A
10kVA 22A
15kVA 33A
20kVA 44A
828 x 700 x 1400
(32-1/2 x 27-5/8 x 55)
170 (375)
NOTE
A temperature sensor for internal batteries is installed as a standard feature of the Liebert NX.
!
WARNING
Ensure any lifting equipment used in moving the cabinet has sufficient lifting capacity.
NOTE
Care must be taken when maneuvering units fitted with batteries. Keep such moves to a
minimum.
When the equipment has been finally positioned ensure the adjustable feet are set so that the
battery cabinet will remain stationary and stable.
Temperature
Sensor
TMP-2
+
IN
-
NC
12V
GND
OUT
UPS
Monitor
Board
– U2
X7
-12V
GND
BAT-T
The battery sensor kit includes cables W1 & W2 and the temperature sensor (TMP-2)
Name: W2 L=5m
Name: W1 L=30m

Emerson Liebert NX Specifications

General

Brand	Emerson
Model	Liebert NX
Category	UPS
Language	English