Eaton Power Xpert 9395P-1100/1100 Installation And Operation Manual page 47

Table 7. 480V Input/Output Ratings and External Wiring Requirements for the Four UPM – Separate Battery
Basic Unit Rating
Input and Output Voltage
AC Input to UPS Rectifier (0.98 Minimum pF)
Full load current plus battery recharge current
(3) Phases, (1) Ground
Minimum Conductor Size
Number per Phase
AC Input to UPS Bypass
Full Load Current
(3) Phases, (1) Ground
Minimum Conductor Size
Number per Phase
DC Input from Battery Disconnect to Each UPS UPM
(1) Positive, (1) Negative
Minimum Conductor Size
Number per Pole
AC Output to Critical Load
Full Load Current
(3) Phases, (1) Ground
Minimum Conductor Size
Number per Phase
NOTE Callout letters A, B, C, and D map to
NOTE Bypass wiring data is not applicable to IOM configurations.
Battery Conductor Sizing: Eaton strongly recommends using the specified DC conductor size and quantity shown above for
optimum system performance and battery run time.
Battery Cable Routing Requirements
Conduit applications:
* Each conduit must have a Positive, Negative, and Ground conductor.
* There must be an equal number of positive and negative conductors in a single conduit. Only one ground conductor is required in
each conduit.
Raceway applications:
* Positive and negative battery cables must be run side by side in the raceway in an alternating pattern (+ - + - + - + -).
* There must be a ground cable running in the raceway with the battery cables.
NOTE If a 4-pole Automatic Transfer Switch (ATS) is used to connect the UPS to a generator or alternative input source, it may
interrupt the UPS input neutral during its transition between sources. For the 9395 UPS:
The ATS transition must be open in both directions. The "break" time for the contacts must be at least 50 ms. This allows the UPS to
operate properly, however it is important to evaluate whether the critical load will function properly as its neutral reference is
rapidly (50 ms) switched. Note also that if the UPS load is on bypass, an ATS switchover with interruption of the neutral, will
interrupt the return current path and cause a loss of all phase-to-neutral loads.
If an overlapping neutral or make-before-break ATS switch is used, the neutrals must overlap for a minimum of 50 ms during the
transition.
A
B
C
D
Figure 67.
Eaton ® Power Xpert ® 9395P-1200 Installation and Operation Manual 164000500—Rev 11
UPS Installation Plan and Unpacking
Rating 50/60 Hz
Units
kVA 1000 1100
1000 1100
kW
Volts
480/480 480/480
Amps
1485 1600
AWG or kcmil
500
(each)
(5)
Amps
1203 1323
AWG or kcmil 500
(each) (5)
Total Amps
658
AWG or kcmil 500
(each) (3)
Amps
1203 1323
AWG or kcmil 500
(each) (5)
1200 1200
1100 1200
480/480 480/480
1600 1781
500 500 500
(6) (6) (6)
1443 1443
500 500 500
(5) (5) (5)
658 658 658
500 500 500
(3) (3) (3)
1443 1443
500 500 500
(5) (5) (5)
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