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9.
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.
10.
Conduit is to be 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, size the conduit to accommodate the extra wire or size. All
Powerware 9390 products can accommodate a double-sized neutral.
11.
Terminals are UL and CSA rated at 90˚C. Refer to Table E for power cable terminations.
Drawing 164201591---8 shows the location of the power cable terminals inside the UPS
cabinet.
Table E. IAC-- D Power Cable Terminations
Terminal Function
AC Input from UPS
AC Output from
Distribution Breaker to
Critical Load
AC Output from
Distribution Panel
Breakers to Critical Load
EATON Powerware
9390 IAC-D Installation and Operation Manual S 164201591 Rev B powerware.com
®
Size of Pressure
Terminal
Function
E57
Phase A
2 --- #2---600 kcmil
E58
Phase B
2 --- #2---600 kcmil
E59
Phase C
2 --- #2---600 kcmil
E4
Neutral
4 --- #2---600 kcmil
E9
Ground
2 --- #14---1/0
CBxx–2
Phase A
1 --- #4---350 kcmil
CBxx–4
Phase B
1 --- #4---350 kcmil
CBxx–6
Phase C
1 --- #4---350 kcmil
E10, E20
Neutral
6 ea. --- #4---300 kcmil
E18, E19,
Ground
2 ea. --- #14---1/0
E28, E29
Wire branch circuits in accordance with branch circuit breaker manufacturers ratings and
instructions (output is prewired to the panelboard)
PB1–N
42 – #4---#14 or
Neutral
PB2–N
E18, E19,
42 – #4---#14 or
Ground
E28, E29
2 x #12---#14
DESCRIPTION:
DRAWING NO:
REVISION:
Tightening Torque
Termination
Nm (lb in)
56.5 (500)
56.5 (500)
56.5 (500)
56.5 (500)
5.6 (50)
20.3 (180)
20.3 (180)
20.3 (180)
31 (275)
5.6 (50)
#4---#6:
#8:
3 x #10---#14
#10---#14: 2.3 (20)
#4---#6:
#8:
#10---#14: 2.3 (20)
POWER WIRING INSTALLATION NOTES
164201591---6
DATE:
A
Installation Information
Type
Screw
1/2 in. Hex
1/2 in. Hex
1/2 in. Hex
1/2 in. Hex
Slotted
3/16 in. Hex
3/16 in. Hex
3/16 in. Hex
5/16 Hex
Slotted
4.0 (35)
2.8 (25)
Slotted
4.0 (35)
2.8 (25)
Slotted
SHEET:
2 of 3
051505
A-17
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