Eaton 9155 - Page 26

INPUT ISOLATION TRANSFORMER INSTALLATION
Eaton 9155 UPS (8–15 kVA) User's Guide S 164201553 Rev G (www.eaton.com/powerquality)
20
12. Wire the output of the input isolation transformer terminal block to the UPS input
terminal block (see Table 3 and Figure 11).
Table 3. UPS Terminal Block (TB1) Wiring
Wire Function Terminal Position 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
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.
13456789
Input
TB1
2
2A
8A
Output
Figure 11. UPS Terminal Block
13. Replace the UPS wiring access cover and the input isolation transformer wiring
cover.
14. Continue to “Stabilizing the Cabinet” on page 43 to complete the UPS
installation.
15. On the input isolation transformer, punch one pilot hole in the conduit landing for
the input conduit using a Greenlee punch or similar device (see Figure 10 on
page 19).
16. Install the supplied edge grommet in the top of the input isolation transformer
wiring cover.