Eaton Power Xpert 9395 550/275, Installation And Operation Manual

Page: 69 / 208

UPS System Installation
Power Xpert
TM
9395 550/275 UPS (225–550 kVA) Installation and Operation Manual 164201716—Rev 8 www.eaton.com/powerquality 4-19
Figure 4-13. Interface Terminal Detail
Figure 4-14. Typical Alarm Relay Connection
TB1
TB2
X-Slot Communication Bays
See
Figure 4-15 for
terminal
assignments.
TB2
Alarm Relay
3
4
5
6
Alarm Relay NC
Alarm Relay Common
Alarm Relay NO
Alarm Relay Common
NOTE Alarm relay contacts have a maximum current rating of 5A and a switched voltage rating of 30 Vac and 28 Vdc.
NOTE Alarm relay normally-open and normally-closed return terminals are separated on the terminal board but are electrically in common.
NOTE Do not directly connect relay contacts to the mains related circuits. Reinforced insulation to the mains is required.
NOTE Alarm relay wiring should be a minimum of 22 AWG
.