Eaton Power Xpert 9395 Installation And Operation Manual page 45

UPS Installation Plan and Unpacking
Figure 13. Remote EPO Switch Dimensions
115.8
[4.56]
114.3
[4.50]
3 3 . . 2 2 . . 4 4 U U P P S S S S y y s s t t e e m m P P o o w w e e r r W W i i r r i i n n g g P P r r e e p p a a r r a a t t i i o o n n
Read and understand the following notes while planning and performing the installation:
• Refer to national and local electrical codes for acceptable external wiring practices.
• To allow for future kVA upgrades, consider installing a derated UPS using wiring and external overcurrent
protection breakers sized for a fully rated UPS.
• To allow for a future upgrade, install a three UPM model using conductors and external overcurrent
protection breakers sized the same as a fully rated 1100 kVA model.
• For external wiring, use 90º C copper or aluminum wire. Wire sizes listed in
copper wiring only. If wire is run in an ambient temperature greater than 30º 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 310-16 of the National Electrical Code
copper wire with a 90º C rating.
• Material and labor for external wiring requirements are to be provided by designated personnel.
• If installing a maintenance bypass, a minimum of two separate feeds with upstream feeder breakers, or a
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 feed into this equipment uses three or four wires. The rectifier feed into this equipment uses
three wires. The phases must be symmetrical about ground (from a Wye source) for proper equipment
operation.
• If the load requires a neutral, a bypass source neutral must be provided.
• DO NOT install both a source neutral and a bonding jumper. See
neutral bonding jumper wire sizes. The bonding jumper must be copper wire.
24 Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201764—Rev 14
0.87
[0.22]
88.9
[3.50]
1.57
[0.40]
Needed to
remove key
1/2" Knockout Pattern
(Typical 5 Sides)
Dimensions are in millimeters [inches].
95.3
[3.57]
(Square)
Table 5 through
® (NEC ® ). Specification is for
Table 5, Table 6, Table 7, or
Table 8 are for
Table 8 for