
UNDERSTANDING UPS OPERATION
Power Xpert
9395 UPS (450–550 kVA) Installation and Operation Manual
164201701 Rev 3
www.eaton.com/powerquality
6-19
E1,
E2,
E3
NOTE
Callout letter
A
maps to Table 3‐6 on page 3-11. Callout letters
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
AC Output to
Critical Load
E9, E10,
E11, E12
AC Input to UPS
Rectifiers 3 Wire
A-B-C Rotation
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
A
C
D
C
BATTERY SYSTEM
(Not supplied with the UPS)
BATTERY SYSTEM
(Not supplied with the UPS)
UPM 2
UPM 1
E1,
E2,
E3
A
X-Slot
Interface
48V Battery
Shunt Trip
Interface Board
Battery Aux
Remote EPO
Building Alarms
Alarm Relays
Figure 6‐16. UPS System – Separate Rectifier Feed, Separate Battery, IOM Configuration
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