INSTALLATION INFORMATION
Eaton
®
9390 UPS (20–80 kVA) and 9390IT (20-40 kVA) Installation and Operation Manual
S
164201603 Rev 4
www.eaton.com/powerquality
A-14
Table G. Input/Output Ratings & External Wiring Requirements for the Powerware 9390/9390IT-40/30
Units
Rating 50/60 Hz
Basic Unit Rating at 0.9 lagging pF load
kVA
kW
30
27
30
27
30
27
30
27
30
27
Input and Bypass Input
Output
VOLTS
VOLTS
208/220
208/220
380
380
400
400
415
415
480
480
AC Input to UPS Rectifier
(0.98 min. pF)
Full Load Current plus Battery
Recharge Current
(3) Phases, (1) Ground
A
Amps
90
52
50
48
40
Minimum Conductor Size
Number per Phase
AWG or kcmil
(each)
2/0
(1)
4
(1)
4
(1)
4
(1)
4
(1)
AC Input to UPS Bypass
Full Load Current
(3) Phases, (1) Neutral-if required,
(1) Ground
B
Amps
84/79
46
44
42
36
Minimum Conductor Size
Number per Phase
AWG or kcmil
(each)
2/0
(1)
4
(1)
4
(1)
4
(1)
4
(1)
DC Input from Battery to UPS
(1) Positive, (1) Negative
C
Vdc
Amps@
(2.0V/cell)
384-480
77
432-480
77
432-480
77
432-480
77
432-480
77
Minimum Conductor Size
Number per Pole
AWG or kcmil
(each)
1
(1)
1
(1)
1
(1)
1
(1)
1
(1)
AC Output to Critical Load
Full Load Current
(3) Phases, (1) Neutral-if required,
(1) Ground
D
Amps
84/79
46
44
42
36
Minimum Conductor Size
Number per Phase
AWG or kcmil
(each)
2/0
(1)
4
(1)
4
(1)
4
(1)
4
(1)
Neutral Bonding Jumper
Minimum Conductor Size
Number (See Note 7)
-
AWG or kcmil
(each)
4
(1)
6
(1)
6
(1)
6
(1)
6
(1)
NOTE
Callout letters
A
,
B
,
C
, and
D
map to Drawing 164201603-5, sheets 1 of 6,
6.
The bypass feed into this equipment uses three or four wires. The rectifier feed into this
equipment uses three wires. The phases must be symmetrical about ground (from a Wye
source) for proper equipment operation.
7.
If the load requires a neutral, a bypass source neutral must be provided. If the load does
not require a neutral and there is no neutral conductor connected at the bypass input, a
neutral to ground bonding jumper must be installed. DO NOT install both a source neutral
and a bonding jumper. See Table F through Table K for neutral bonding jumper wire sizes.
Bonding jumper must be copper wire. See Following Cautions.
C
A
U
T
I
O
N
HIGH IMPEDANCE GROUND SOURCES - If the source of supply is a high impedance ground (IT) type, the input neutral
conductor must be connected from the source of supply. If there is no output neutral connected to the UPS, the
neutral‐forming transformer kit (PN 103005400) may be used instead of pulling a neutral from the source. If the load requires a
neutral then an input neutral conductor must be pulled into the UPS. In no circumstances shall a neutral to ground bonding
jumper be installed in the UPS.
POWER WIRING INSTALLATION NOTES
071608
D
2 of 23
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