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UPS Installation Plan and Unpacking
•
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
Input
Output
* 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.
Table 5. Input Isolation Transformer Terminal Block Wiring
Wire Function
Input
Output
Ground
* 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.
12
Eaton 9155 Parallel UPS (8–15 kVA) User's Guide 164201592—Rev E0
Terminal
Breaker Rating
Position
Ground
TB1-1
AUX
TB1-2-1 and
2-2
Not Used
TB1-2A-1 and
2A-2
L1
TB1-3
8 kVA
10 kVA
Neutral
TB1-4
12 kVA
L2
TB1-5
15 kVA
L1
TB1-6
Neutral
TB1-7
L2
TB1-8
Not Used
TB1-8A-1 and
8A-2
Ground
TB1-9
Terminal
Position
L1
TB1-1
L2 (208V)
TB1-2
L2 (240V)
TB1-3
L1
TB1-4
L2
TB1-5
Neutral
TB1-6
Output
TB1-7
Input
TB1-8
Input Circuit
Minimum
Wire Size*
8 AWG
4 AWG (21.2 mm
60A
3 AWG (26.7 mm
80A
100A
2 AWG (33.6 mm
2 AWG (33.6 mm
110A
8 AWG
8 AWG
8 AWG
8 AWG
Input Circuit
Breaker Rating
8 kVa
60A
10 kVA
80A
12 kVA
100A
15 kVA
100A
8 kVA
10 kVA
12 kVA
15 kVA
Tightening
Torque
—
—
25 lb in
(2.83 Nm)
2
)
2
)
2
)
2
)
25 lb in
(2.83 Nm)
—
Minimum Wire Size*
3 AWG (26.7 mm
2
)
2 AWG (33.6 mm
2
)
1 AWG (42.4 mm
2
)
1 AWG (42.4 mm
2
)
4 AWG (21.2 mm
2
)
3 AWG (26.7 mm
2
)
2
2 AWG (33.6 mm
)
2 AWG (33.6 mm
2
)
8 AWG
Conduit
Connection
(Entry Size)
2" access hole
for
1-1/2" conduit
2" access hole
for
1-1/2" conduit
Tightening
Torque
25 lb in
(2.83 Nm)
25 lb in
(2.83 Nm)
25 lb in
(2.83 Nm)
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