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PARALLEL INSTALLATION
EATON Powerware
®
9155 Parallel UPS (8–15 kVA) User’s Guide S 164201592 Rev C www.powerware.com
18
NOTE Input neutral must be wired for proper operation. Failure to connect an input neutral
will void the warranty.
Table 2. UPS Terminal Block Wiring
Wire Function
Terminal
Position
Upstream
Circuit Breaker
Minimum
Wire Size*
Tightening
Torque
Conduit Connection
(Entry Size)
Input
Ground TB1-1 8AWG
p
L1 TB1-3
100A
3AWG
2
5
l
b
i
n
2
”
a
c
c
e
s
s
h
o
l
e
f
o
r
Neutral TB1-4 3AWG
2
5
l
b
i
n
(2.83 Nm)
2
a
c
c
e
s
s
h
o
l
e
f
o
r
1-1/2” conduit
L2
TB1-5
100A
3AWG
Output
L1 TB1-6 3AWG
p
Neutral TB1-7 3AWG
2
5
l
b
i
n
2
”
a
c
c
e
s
s
h
o
l
e
f
o
r
L2 TB1-8 3AWG
2
5
l
b
i
n
(2.83 Nm)
2
a
c
c
e
s
s
h
o
l
e
f
o
r
1-1/2” conduit
Ground
TB1-9 8AWG
*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.
1
2
345678 9
Input Output
TB1
Figure 10. UPS Terminal Block