
Eaton 93PM Emergency Lighting UPS (50 kW, 480V Three and Four-Wire UL 924) Installation and Operation Manual P-164000569—Rev 03
61
C
Chhaapptteerr 66 U
UP
PS
S O
Onneelliinnee S
Scchheem
maattiiccss
The system oneline drawings in this section show the simplified internal structure of the UPS, battery supply,
and basic maintenance bypass.
Figure 37. Eaton 93PM Three-Wire UPS System Oneline
AC Input to UPS
Rectifier 3 Wire
A-B-C Rotation
AC Input to UPS
Bypass 3 Wire
A-B-C Rotation
E1, E2, E3
A
B
D
C
UPS CABINET
External Battery
Cabinet
(Not supplied with the UPS.)
E6, E7, E8
Optional Single-Feed
Jumper
Fuse
Fuse
Fuse
Fuse
Rectifier
Switchgear
Rectifier
Inverter
Inverter
Switchgear
Battery
Converter
Battery
Switchgear
E4, E5
Battery
Breaker
Bypass
Switchgear
Static
Swtich
AC Output to
Critical Load
E9,
E10,
E11
UPM
CB1 Input
Breaker
Pull Chain
Parallel CAN
Mini-Slot
Interface
Interface
Board
NOTE
Dashed lines indicate optional features/components.
AC Input to rectifier is not used in single-feed configuration.
Summary of Contents for 93PM-50-1
Page 112: ...P 16400056903 P 164000569 03 ...