Liebert NX series User Manual

General Description
3
Maintenance Mode
For maintenance or repair, the NX may be operated in maintenance mode. To place the NX in mainte-
nance mode, the load must be transferred to bypass and the inverter must be turned off. When those
conditions are met, the rotary switch may be turned to MAINT and the UPS may be shut down, per-
mitting disconnecting the batteries for maintenance.
!
CAUTION
The internal maintenance bypass must not be used when the UPS system is in 1+1 parallel.
!
WARNING
The UPS input and output must be protected with external overcurrent protection devices. In
maintenance mode, the input and output busbars remain energized.

Liebert NX series Specifications

General

Frequency	50/60 Hz
Display	LCD
Topology	Double Conversion
Input Voltage	208/220 VAC
Output Voltage	208/220 VAC
Communication	SNMP
Operating Temperature	0 to 40°C
Battery Type	VRLA
Humidity	0 to 95% (non-condensing)
Dimensions	Varies by model. See product documentation.
Weight	Varies by model. See product documentation.
Storage Temperature	-15-50°C (5-122°F)