Eaton Power Xpert 9395 Installation And Operation Manual page 53

UPS Installation Plan and Unpacking
Table 7. Input/Output Ratings and External Wiring Requirements for the Three UPM Power Xpert 9395-1100/650, 9395-
1100/750, and 9395-1100/825 – Common 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 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.
32 Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201764—Rev 14
Units
kVA 650
kW 592
Volts 400/400 480/480 400/400 480/480 400/400 480/480
Amps
938
D
500
AWG or kcmil
(6)
(each)
Figure 68.
Rating 50/60 Hz
650 750 750 825
592 683 683 751
782 1083 902 1191
500 500 500 500
(6) (6) (6)
825
751
992
500
(6) (6)