UPS Installation Plan and Unpacking
3-24
Power Xpert
TM
9395 UPS (450–825 kVA) Installation and Operation Manual
164201725—Rev 10
www.eaton.com/powerquality
Battery voltage is computed at 2 volts per cell as defined by Article 480 of the NEC. Rated battery current is
computed at 2 volts per cell.
The battery wiring used between the battery and the UPS should not allow a voltage drop of more than 1% of
nominal DC voltage at rated battery current.
3.2.4
UPS System Interface Wiring Preparation
Control wiring for features and options should be connected at the customer interface terminal blocks located
inside the UPS.
WARNING
Do not directly connect relay contacts to the mains related circuits. Reinforced insulation to the mains is
required.
Read and understand the following notes while planning and performing the installation:
l
Use Class 1 wiring methods (as defined by the NEC) for interface wiring from 30V to 600V. The wire should
be rated at 600V, 1A minimum and 12 AWG maximum.
l
Use Class 2 wiring methods (as defined by the NEC) for interface wiring up to 30V.
l
The wire should be rated at 24V, 1A minimum.
l
Use shielded twisted-pair wires for each input and return or common.
l
All interface wiring and conduit is to be provided by the customer.
Table 3-20. Recommended DC Input Circuit Breaker Ratings – Common Battery
UPS Model
Input Rating
400V
480V
Power Xpert 9395-825/650
1600A
1600A
Power Xpert 9395-825/750
2000A
2000A
Power Xpert 9395-825/825
2000A
2000A
Power Xpert 9395-825/450
Power Xpert 9395-825/500
Power Xpert 9395-825/550
See Note
2000A
2000A
NOTE Because of the future upgradability to a fully rated 825 kVA UPS with the addition of the FI-UPM, these breaker sizes
are specified for an 825 kVA UPS.
Table 3-21. Recommended DC Input Circuit Breaker Ratings Separate Battery
UPS Model
Input Rating
400V
480V
Power Xpert 9395-825/650
700A
700A
Power Xpert 9395-825/750
Power Xpert 9395-825/825
Power Xpert 9395-825/450
Power Xpert 9395-825/500
Power Xpert 9395-825/550
See Note
700A
700A
NOTE Because of the future upgradability to a fully rated 825 kVA UPS with the addition of the FI-UPM, these breaker sizes
are specified for an 825 kVA UPS.
Summary of Contents for Power Xpert 9395 UPS
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