Powerware Uninterruptible Power Supply Installation And Operation Manual page 146

20.
DC input overcurrent protection and disconnect switch are to be provided by the user.
Table I lists the maximum rating for continuous duty rated circuit breakers satisfying the
criteria for both.
21.
Table J lists the battery shunt trip trip wiring requirements.
22.
There is no DC disconnect device within the UPS.
23.
The DC input to the UPS is protected by internal fuses F30 and F31.
24.
Recommended wire size is 14 AWG.
25.
Battery voltage is computed at 2 volts per cell as defined by Article 480 of the NEC.
Rated battery current is computed at 2 volts per cell.
26.
The battery wiring used between the battery and the UPS should not allow a voltage drop
of more than 1% of nominal DC voltage at rated battery current.
27.
A battery disconnect switch is recommended, and may be required by NEC or local codes
when batteries are remotely located. The battery disconnect switch may be supplied as an
accessory, and should be installed between battery and UPS.
28.
If the conductors used for DC input from the battery string to the UPS are those provided
by the UPS manufacturer, and the UPS and battery string are manufactured by the same
supplier, then it is acceptable if they do not meet the noted minimum conductor sizes.
A ---10
Table I. Maximum DC Input Circuit Breaker Ratings
Powerware System Powerware System
9315-625/400
9315-625/450
9315-625/500
9315-625/562
9315-750/500
9315-750/562
9315-750/600
9315-750/675
Table J. Battery Shunt Trip Wiring Requirements Table J Battery Shunt Trip Wiring Requirements
CB2TB Points
Output Max Pulse
Wiring
Output Voltage Rating
400V 480V
1600A N/A
1600A N/A
N/A 1600A
N/A 2000A
ST
9, 10
220 VA instantaneous
#18 AWG
DESCRIPTION:
INSTALLATION NOTES
DRAWING NO:
164201244---1
REVISION: C
Powerware 9315 (500 kVA- -750 kVA) Installation and Operation
600V
N/A
N/A
1600A
2000A
SHEET:
9 of 10
DATE:
021500
164201244 REV. D 030101