Eaton 9E - Figure 5-6. UPS System Oneline - External Battery

Understanding UPS Operation
5-8 Eaton 9E UPS (40–60 kVA, 208/220V) Installation and Operation Manual P-164000058—Rev 4 www.eaton.com/powerquality
Figure 5-6. UPS System Oneline – External Battery
AC Input to
Bypass 4 Wire
A-B-C Rotation
(optional)
Parallel CAN
Mini-Slot
Interface
Interface Board
Pull Chain
Remote EPO
L1, L2,
L3, N
Input Breaker
Internal Single-Feed
Jumper
L1, L2,
L3, N
AC Input to
UPS Rectifier
4 Wire A-B-C
Rotation
Backfeed
Relay
Static
Switch
Rectifier
Battery Relay
Fuse
Battery
Converter
Output
Relay
Fuse
Fuse
Inverter
Input
Relay
UPM 2
UPS
CABINET
L1, L2,
L3, N
AC Output to
Critical Load
A
B
D
C
Battery
Breaker
EXTERNAL BATTERY
CABINET
(Not supplied with the UPS)
Rectifier
Battery Relay
Fuse
Battery
Converter
Output
Relay
Fuse
Fuse
Inverter
Input
Relay
UPM 1
NOTE Callout letters A, B, C, and D map to Table 3-4.