Figure 5-6. Ups System One Line (Single Input) - Eaton 93E MK2 Installation And Operation Manual

Understanding UPS Operation
Input Switch
NOTE Callout letters A,B,C, and D map to Table 3-5.

Figure 5-6. UPS System One line (Single Input)

47
AC Input to
UPS Rectifier
4 Wire A-B-C
Rotation
A,B
L1, L2,
L3, N
(OPTIONAL)
INTERNAL BATTERY
Eaton 93E MK2 UPS (10-40kVA, 380/400/415V) Installation and Operation
Pull Chain
Remote EPO
(Optional)
Backfeed Contactor
Static
Switch
Battery
relay
Battery
relay
Fuse
Fuse
disconnector
C
EXTERNAL BATTERY
CABINET
Parallel CAN
Mini-Slot
Interface
Interface Board
Fuse
Input
relay
Rectifier
Inverter MBS
Output
relay
L1, L2,
L3, N
Fuse
Output Switch
UPS
CABINET
Battery
Breaker
AC Output to
Critical Load
D