Liebert NXC - Page 18

18 User Manual 10H52188UM51 - Rev. 1 - 09/2011
Single UPS Installation and Commissioning Liebert NXC
Figure 2-4 3-in 3-out, common source configuration cable connection
 3-in 3-out, split-bypass configuration
1. Remove all the copper shorting bars 3 from the UPS I/O terminal block.
2. Connect the live lines (mains input phase L1, mains input phase L2 and mains input phase L3), N line and PE line respectively
to the I/O terminal block (U1, V1, W1 and N1 and PE terminals) of the UPS.
3. Connect the live lines (bypass input phase L1, bypass input phase L2 and bypass input phase L3) and N line respectively to the
I/O terminal block (U2, V2, W2 and N2 terminals) of the UPS.
4. Connect the live lines (output phase L1, output phase L2 and output phase L3), N line and PE line respectively to the I/O
terminal block (U3, V3, W3 and N3 terminals and PE terminal) of the UPS.
Copper shorting bars
No. 3
UPS MODULE
INTERNAL BATTERY
RECT
INV
CHARGER
COMMUNICATION
PORTS
OP. AND DISP.
PANEL
OUTPUT
MAINS INPUT
EXT. BATTERY
STS