Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201716—Rev 13
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Table 21. TB1, TB2, and TB3 Interface Connections
Terminal
TB1
Name
Description
1
REPO NC
Input: Normally-closed dry contact used to activate UPS EPO from a remote
switch.
2
REPO Return
3
REPO NO
Input: Normally-open dry contact used to activate UPS EPO from a remote
switch.
4
REPO Return
5
Battery Aux
Input: Normally-open contact used to indicate when UPS battery breaker is
open or closed.
6
Battery Aux Common
7
48 Vdc Battery Shunt Trip +
Output: Contacts used to open battery breaker or disconnect.
8
48 Vdc Battery Shunt Trip –
9
Output Contactor K3 NC Aux
Output: Normally-closed contact opens when output contactor closes.
10
Output Contactor K3 NC Aux Common
Terminal
TB2
Name
Description
1
Pull Chain
Output: Backup control for parallel operation.
2
Pull Chain Common
3
Alarm Relay NC
Output: General purpose normally-closed (NC) relay contact.
4
Alarm Relay Common
5
Alarm Relay NO
Output: General purpose normally-open (NO) relay contact.
6
Alarm Relay Common
7
Not Used
8
Not Used
9
Not Used
10
Not Used
Terminal
TB3
Name
Description
1
Building Alarm 1
Input: Programmable UPS alarm, activated by a remote dry contact closure.
2
Building Alarm 1 Return
3
Building Alarm 2
Input: Programmable UPS alarm, activated by a remote dry contact closure.
4
Building Alarm 2 Return
5
Building Alarm 3
Default: Charger Off
Input: Programmable UPS alarm, activated by a remote dry contact closure.
Default function set for charger off.
6
Building Alarm 3 Return
7
Building Alarm 4
Default: On Generator
Input: Programmable UPS alarm, activated by a remote dry contact closure.
Default function set for on generator.
