Electrical Connections—UPS
19
Liebert
®
APM
™
Figure 6
Control wiring for the dual input transformer configuration
The external maintenance bypass is available with a 480V, 600V or 208V optional internal
transformer. Each UPS frame size (45kVA or 90 kVA) is available with a 480V, 600V or 208V optional
internal transformer. Internal batteries are not available for a 45kVA frame that has an the internal
transformer.
UAM04047
Rev
. 0
NOTES
1. Customer-furnished electrode conductor to be installed in
accordance with national and local electrical codes.
2. See installation manual for additional connection information.
3. Optional 54 pole, 225A
for 45kV
A
frame only or optional 54 pole
400A
for 90kV
A
frame only
.
4.
T
ransformer available: 208V
, 220V
, 480V and 600V input.
5. Overcurrent protection is based on 80% rated devices.
6. Ensure that the jumper bars between input and rectifier input
are removed before starting the unit for the first time.
7. See Drawing UAM02022.
SKRU - SOLENOID
KEY
RELEASE UNIT
KO - KEY
OPERA
T
O
R
Field-Supplied Wiring
Factory-Supplied Wiring
* Customer
must supply
shunt trip to
rectifier
input breaker
with 120V coil
* Utility
RIB
Rect.
Rect. Input
Input
Input Neutral
GRD
ØA
ØB
ØC
ØA
Ø to
ØB
ØC
Utility
Customer
Main Input
Busbars
To
Bypass
Input
MBB
W06
W04
W05
Kirk
Key K1
Kirk
Key K2
Liebert
APM UPS
UPS AC
Output
Bypass Input
N
A
B
C
N
PE
A
B
C
1
W88
W89
W90
W91
W85
W84
W86
W08
W09
W07
BIB
MIB
W87
W83
Main Ground Busbar
Ground
T
o
Unit
Frame
Output
Ground
Output
Neutral
AC Output
Ground
T
o
Unit
Frame
2 Fuses, 2A
Inner Door
AC 120V
AC 120V
SKRU
K0
(Optional)
54 Pole
See Note 3
Bypass Distribution Cabinet
TB1
See Note 1
4
4
4
4
3
3
3
3
3
3
1
1
2
2
2