Eaton 93E MK2 - Figure 5-6. UPS System One Line (Single Input)

Understanding UPS Operation
AC Input to
UPS Rectifier
4 Wire A-B-C
Rotation
A,B
Pull Chain
Remote EPO
Parallel CAN
Mini-Slot
Interface
L1, L2,
L3,
N
Interface Board
Input Switch
(Optional)
Backfeed Contactor
Static
Switch
Fuse
Input
relay
Rectifier
Inverter MBS
Battery
relay
Output
relay
Fuse
Output Switch
L1, L2,
L3,
N
AC Output to
D
Critical Load
(OPTIONAL)
INTERNAL
BA TTER Y
Fuse
disconnector
Battery
relay
Fuse
UPS
CABINET
C
Battery
Breaker
NOTE Callout letters A,B,C, and D map to Table 3-5.
EXTERNAL BA TTER Y
CABINET
Figure 5-6. UPS System One line (Single Input)
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Eaton 93E MK2 UPS (10-40kVA, 380/400/415V) Installation and Operation