UNDERSTANDING UPS OPERATION
Power Xpert
9395 UPS (450–550 kVA) Installation and Operation Manual
164201701 Rev 3
www.eaton.com/powerquality
6-12
Input Breaker
(CB1)
(optional)
E1, E2, E3
E6, E7,
E8, E12
NOTE
Callout letters
A
,
B
,
C
, and
D
map to Table 3‐5 on page 3-10.
NOTE
If the load requires a neutral, a bypass source neutral must be provided. DO NOT install both a source neutral and a bonding jumper.
UPS CABINET
Backfeed
Contactor (K5)
E9,
E10,
E11,
E12
Static
Switch
AC Input to
UPS Rectifier
3 Wire A-B-C
Rotation
AC Input to
Bypass
3 or 4 Wire A-B-C
Rotation
Fuse
Service Connector
Battery
Converter
Inverter
Output
Contactor
(K3)
Fuse
Rectifier
Input
Contactor
(K1)
Battery Contactor (K2)
Fuse
Fuse
Fuse
UPM 1
Battery
Breaker
E4, E5
Battery
Converter
Inverter
Output
Contactor
(K3)
Fuse
Rectifier
Input
Contactor
(K1)
Battery Contactor (K2)
Fuse
Fuse
Fuse
UPM 2
Battery
Breaker
E4, E5
Battery
Converter
Inverter
Output
Contactor
(K3)
Fuse
Rectifier
Input
Contactor
(K1)
Battery Contactor (K2)
Fuse
Fuse
Fuse
UPM 4
X-Slot
Interface
48V Battery
Shunt Trip
Interface Board
Battery Aux
Remote EPO
Building Alarms
Alarm Relays
FI-UPM CABINET
Battery
Breaker
A
B
C
D
C
AC Output
to Critical
Load
C
BATTERY SYSTEM
(Not supplied with the UPS)
BATTERY SYSTEM
(Not supplied with the UPS)
BATTERY SYSTEM
(Not supplied with the UPS)
Single-Feed Kit
(Not supplied
with the UPS)
E4, E5
Figure 6‐9. Plus 1 UPS System – Common Rectifier Feed, Separate Battery, Dual‐Feed Configuration
