Table 4. Ups Terminal Block (Tb1) Wiring - Eaton 9155 UPS User Manual

UPS Installation Plan and Unpacking
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.
This product has been evaluated for use with copper wire only. For external wiring, use only 90°C copper wire.
Wire sizes listed in
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
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
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.
24 Eaton 9155 UPS (8–15 kVA) User's Guide 164201553—Rev H0
Table 4 through
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
TB1-9
Ground
WARNING
IMPORTANT
Table 6 are for copper wiring only. If wire is run in an ambient
Input Circuit
Minimum
Wire Size*
8 AWG
4 AWG (21.2 mm
60A
80A 3 AWG (26.7 mm
100A 2 AWG (33.6 mm
2 AWG (33.6 mm
110A
8 AWG
8 AWG
8 AWG
8 AWG
® (NEC ® )70 Table 310.15(B)(16) 90°
Tightening
Torque
—
—
25 lb in
(2.83 Nm)
2 )
2
)
2 )
2 )
25 lb in
(2.83 Nm)
—
Conduit
Connection
(Entry Size)
2" access hole
for
1-1/2" conduit
2" access hole
for
1-1/2" conduit