Ups System Power Wiring Preparation; Figure 3-17. Remote Epo Switch Dimensions - Eaton Power Xpert 9395P-900 Series Installation And Operation Manual

UPS Installation Plan and Unpacking
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Dimensions are in millimeters [inches].

Figure 3-17. Remote EPO Switch Dimensions

3.2.3

UPS System Power Wiring Preparation

Read and understand the following notes while planning and performing the installation:
Refer to national and local electrical codes for acceptable external wiring practices.
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To allow for future kVA upgrades, consider installing a derated UPS using wiring and external overcurrent
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protection breakers sized for a fully rated UPS.
To allow for a future upgrade, install a three UPM model using conductors and external overcurrent
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protection breakers sized the same as a fully rated 900 kVA model.
For external wiring, use 75°C copper or aluminum wire. Wire sizes listed in Table 3-7 through Table 3-10 are
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for copper wiring only. If wire is run in an ambient temperature greater than 30°C, higher temperature wire
and/or larger size wire may be necessary. Wire sizes are based on using the specified breakers.
Wire ampacities are chosen from Table 310.15(b) (16) of the National Electrical Code (NEC). Specification is
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for copper wire with a 75°C rating.
Material and labor for external wiring requirements are to be provided by designated personnel.
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If installing a maintenance bypass, a minimum of two separate feeds with upstream feeder breakers, or a
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single feed with two upstream feeder breakers, must be provided: one for the UPS or rectifier input breaker
(RIB) (if installed) and one for the maintenance bypass input. DO NOT use a single feed or a single feeder
breaker to supply both the UPS or RIB and the maintenance bypass. If a bypass input breaker (BIB) is
installed in the maintenance bypass and a single-feed UPS is being installed, a single feed to the
maintenance bypass is acceptable for supplying both the UPS and the bypass.
The bypass and rectifier feeds into this equipment use three wires. The phases must be symmetrical about
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ground (from a Wye source) for proper equipment operation.
The Eaton 9395P 480V unit is designed for operation on a grounded-wye source of supply. There is no
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additional connection point for a neutral conductor. The output of this UPS will not directly support phase to
neutral loads.
The ISBM and UPM sections are shipped with debris shields covering the ventilation grills on top of the
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sections. Do not remove the debris shields until installation is complete. However, remove the shields
before operating the UPS. Once the debris shields are removed, do not place objects on the ventilation
grills.
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9395P-900 UPS Installation and Operation Manual P-164000501—Rev 09
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