Eaton Power Xpert 9395 550/275 Installation And Operation Manual page 118

for only two minutes before the output of the system shuts down. If the bypass source is available, the UPS
transfers to bypass instead of shutting down.
If at any time during the battery discharge the input power becomes available again, contactors K1 and K5 close
and the rectifier begins to supply DC current to the converter and inverter. At this point, the unit returns to
Online mode. Depending on the total load and the duration of the battery discharge, battery current limit alarms
may be seen for a short time due to the current required to recharge the battery.
6 6 . . 3 3 S S i i n n g g l l e e U U P P S S S S y y s s t t e e m m O O n n e e l l i i n n e e C C o o n n f f i i g g u u r r a a t t i i o o n n s s
The system oneline drawings in this section show the simplified internal structure of the UPS, battery supply,
and basic maintenance bypass.
Oneline Drawing
Figure 52
Figure 53
Figure 54
Figure 55
Figure 56
UPS Model
Input
9395-550/225
400
9395-550/275
480
9395-550/225
400
9395-550/275
480
9395-550/450
9395-550/500
9395-550/550
9395-550/225
400
9395-550/275
480
9395-550/450
9395-550/500
9395-550/550
9395-550/225
400
9395-550/275
480
9395-550/450
9395-550/500
9395-550/550
9395-550/225
400
9395-550/275
480
9395-550/450
9395-550/500
9395-550/550
Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201716—Rev 14
Understanding UPS Operation
Voltage
Output
Single Reverse Transfer UPS – One
400
UPM, Common Rectifier Feed, Dual-
480
Feed Configuration
400
Single Reverse Transfer UPS – Two
480
UPM, Common Rectifier Feed,
Common Battery, Dual-Feed
Configuration
400
Single Reverse Transfer UPS – Two
480
UPM, Common Rectifier Feed,
Separate Battery, Dual-Feed
Configuration
400
Single Reverse Transfer UPS – Two
480
UPM, Separate Rectifier Feed,
Separate Battery, Dual-Feed
Configuration
400
480
Simplified Dual-Fed UPS with
Maintenance Bypass Panel
System Type
97