Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201716—Rev 13
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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.
66..33
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The system oneline drawings in this section show the simplified internal structure of the UPS, battery supply,
and basic maintenance bypass.
Oneline Drawing
UPS Model
Voltage
System Type
Input
Output
9395-550/225
9395-550/275
400
480
400
480
Single Reverse Transfer UPS – One
UPM, Common Rectifier Feed, Dual-
Feed Configuration
9395-550/225
9395-550/275
9395-550/450
9395-550/500
9395-550/550
400
480
400
480
Single Reverse Transfer UPS – Two
UPM, Common Rectifier Feed,
Common Battery, Dual-Feed
Configuration
9395-550/225
9395-550/275
9395-550/450
9395-550/500
9395-550/550
400
480
400
480
Single Reverse Transfer UPS – Two
UPM, Common Rectifier Feed,
Separate Battery, Dual-Feed
Configuration
9395-550/225
9395-550/275
9395-550/450
9395-550/500
9395-550/550
400
480
400
480
Single Reverse Transfer UPS – Two
UPM, Separate Rectifier Feed,
Separate Battery, Dual-Feed
Configuration
9395-550/225
9395-550/275
9395-550/450
9395-550/500
9395-550/550
400
480
400
480
Simplified Dual-Fed UPS with
Maintenance Bypass Panel