Eaton Powerware 9355 - Wiring Specifications and Diagrams

ELECTRICAL INSTALLATION
EATON Powerware
®
9355 UPS (20/30 kVA) Installation and Operation Manual S 164201626 Rev B www.powerware.com
34
Wiring Specifications and Diagrams
NOTE Input neutral must be wired for p roper operation or the UPS will not start. If you have an Options
Cabinet with an input isolation transformer, the input neutral is supplied by the input isolation transformer.
NOTE The Powerware 9355 UPS is shipped as a single-feed UPS and can be converted to a dual-feed UPS
in the field.
NOTE DO NOT overtighten the screws; be sure to use the specified tightening torque values shown in
Table 1.
Table 1. Terminal Block Wiring
20 kVA
Input Voltage
Wire
Function
Input Circuit
Breaker Size
L1, L2, L3, N
Wire Size
1
Ground
Wire Size
1
Tightening
Torque
Conduit Size
2, 3
(Number of Conduits)
208
Input
100A
1AWG 6AWG
2
0
0
”
d
i
(
1
)
220
p
100A
1AWG 6AWG
1
2
0
l
b
i
n
2.00” conduit (1)
480
(with transformer) 45A
8AWG 10 AWG
1
2
0
l
b
i
n
(13.5 Nm)
1
0
0
”
d
i
(
1
)
600 (with transformer) 35A
8AWG 10 AWG
1.00” conduit (1)
208
Output
1AWG 6AWG
220
p
1AWG 6AWG
120 lb in
(
1
3
5
N
m
)
2.00” conduit (1)
480
(with transformer)
1AWG 6AWG
(
1
3
.
5
N
m
)
2
.
0
0
c
o
n
d
u
i
t
(
1
)
30 kVA
Input Voltage
Wire
Function
Input Circuit
Breaker Size
L1, L2, L3, N
Wire Size
1
Ground
Wire Size
1
Tightening
Torque
Conduit Size
2, 3
(Number of Conduits)
208
Input
125A
1/0 AWG 6AWG 2.00” conduit (1)
220
p
125A
1/0 AWG 6AWG
1
2
0
l
b
i
n
2.00” conduit (1)
480 (with transformer) 60A
6AWG 10 AWG
1
2
0
l
b
i
n
(13.5 Nm)
1.00” conduit (1)
600 (with transformer) 50A
8AWG 10 AWG 1.00” conduit (1)
208
Output
1/0 AWG 6AWG
220
p
1/0 AWG 6AWG
120 lb in
(
1
3
5
N
m
)
2.00” conduit (1)
480
(with transformer)
1/0 AWG 6AWG
(
1
3
.
5
N
m
)
2
.
0
0
c
o
n
d
u
i
t
(
1
)
1
Use only 90°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.
2
Per NEC article 300-20(a), all three-phase conductors must be run in the same conduit. Neutral and ground must be run in the same conduit as the
phase conductors.
3
Conduit is sized to accommodate one neutral conductor the same size as the phase conductor and one ground conductor. If two neutral conductors or
an oversized neutral conductor are to be installed, check the size of the conduit needed to accommodate the extra wire or size and use that conduit size
in place of the conduit size listed. Conduit sizes were chosen from NEC Table C1, type letters RHH, RHW, RHW-2, TW, THW, THHW, THW-2.