Liebert 12 bay, User Manual

Page: 18 / 45

16
Connecting to External Panel Boards
If connected equipment will operate at 240 / 120
VAC, use a standard single-phase panel board.
If connected equipment will ONLY operate at
208 / 120 VAC, use a three-phase panel board.
Ensure that all 120V equipment is connected
L
1 –
N
,
L
3
– N
.
Ensure that all 208V equipment is
connected L
1
– L
2.
REPO Switch
Nfinity
is equipped with a Remote Emergency
Power Off (REPO) Switch.
The user must supply a means of interfacing
with the REPO circuit to allow disconnecting
the UPS input feeder breaker to remove all
sources of power to the UPS and connected
equipment to comply with national and local
wiring codes / regulations.
Remove
jumper
before
wiring.
1 = 24V DC, 35 mA
2 = sense
3 = sense
4 = ground
If the installation does not require connection
to a REPO system, the jumper must be
removed.
Caution:
To maintain safety (SELV) barriers
and electromagnetic compatibility signal
cables should be segregated and run
separately from power cables.
UPS Output Panel Board
Input
UPS Output Panel Board
Input