24 Eaton 9155 UPS (8–15 kVA) User’s Guide 164201553—Rev H0
WARNING
As a result of the connected loads high leakage current is possible. Connection to earth ground is required for
safety and proper product operation. Do not check UPS operation by any action that includes removal of the
earth (ground) connection with loads attached.
• Refer to national and local electrical codes for acceptable external wiring practices.
• For external wiring, use 90°C copper wire.
IMPORTANT
This product has been evaluated for use with copper wire only. For external wiring, use only 90°C copper wire.
Wire sizes listed in Table 4 through Table 6 are for copper wiring only. If wire is run in an ambient
temperature greater than 40°C, larger size wire may be necessary. Wire sizes are based on using the
specified breakers.
• Recommended wire sizes are based on NFPA National Electrical Code
®
(NEC
®
)70 Table 310.15(B)(16) 90°
C ampacity with 40°C ambient correction factors.
• Input neutral must be wired for proper operation. Failure to connect an input neutral will void the warranty.
If the optional input transformer is installed, an input neutral is not required.
• The Eaton 9155 UPS is a single-feed UPS only.
Table 4. UPS Terminal Block (TB1) Wiring
Wire
Function
Terminal
Position
Input Circuit
Breaker Rating
Minimum
Wire Size*
Tightening
Torque
Conduit
Connection
(Entry Size)
Input
Ground
TB1-1
8 AWG
25 lb in
(2.83 Nm)
2” access hole
for
1-1/2” conduit
AUX TB1-2-1 and
2-2
—
Not Used TB1-2A-1 and
2A-2
—
L1 TB1-3
8 kVA
10 kVA
12 kVA
15 kVA
60A
80A
100A
110A
4 AWG (21.2 mm
2
)
3 AWG (26.7 mm
2
)
2 AWG (33.6 mm
2
)
2 AWG (33.6 mm
2
)
Neutral TB1-4
L2 TB1-5
Output
L1 TB1-6
8 AWG
25 lb in
(2.83 Nm)
2” access hole
for
1-1/2” conduit
Neutral TB1-7 8 AWG
L2 TB1-8 8 AWG
Not Used TB1-8A-1 and
8A-2
—
Ground
TB1-9
8 AWG
* Use only 75°C-rated copper wire. Minimum wire size is based on 120/208 full load ratings applied to NEC Code Table 310-16.
Code may require a larger AWG size than shown in this table because of temperature, number of conductors in the conduit, or long
service runs. Follow local requirements.
UPS Installation Plan and Unpacking
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