Eaton Power Xpert 9395 Installation And Operation Manual page 51

UPS Installation Plan and Unpacking
Table 6. Input/Output Ratings and External Wiring Requirements for the Four UPM Power Xpert 9395-1100/1000, and 9395-
1100/1100 – Separate Battery (Continued)
Basic Unit Rating
Input and Output Voltage
AC Output to Critical Load (Five Wire)
Full Load Current
(3) Phases, (1) Neutral, (1) Ground
Minimum Conductor Size
Number per Pole
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.
30 Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201764—Rev 14
Units
kVA
kW
Volts
Amps
D
AWG or kcmil
(each)
Figure 67. Callout letters A, C, and D map to
Rating 50/60 Hz
1000 1000 1000
910 910 1001
400/400 480/480 400/400
1443 1203 1588
500 500 500
(6) (5) (6)
Figure 71.
1000
1001
480/480
1323
500
(6)