Powerware 9390 Installation & Operation Manual page 167

12.
External overcurrent protection is not provided by this product, but is required by codes.
Refer to Table E through Table H for wiring requirements. If an output lockable disconnect
is required, it is to be supplied by the user.
13.
Table L lists the maximum rating for input circuit breakers. When wiring a single feed input,
the rating requirements for the input circuit breakers are superceded by the ratings listed in
Table M.
Table L. Maximum Input Circuit Breaker Ratings
Powerware 9390 40 Powerware 9390---40
Powerware 9390---50 Powerware 9390 50
Powerware 9390---60 Powerware 9390 60
Powerware 9390---80 Powerware 9390 80
To reduce the risk of fire, connect only to a circuit provided with maximum input
circuit breaker current ratings from Table L in accordance with the National Electrical
code, ANSI/NFPA 70.
14.
Source protection for the AC input to bypass should be treated as if supplying an 80 kVA
three-phase transformer, to allow for inrush current if an IDC with a transformer is installed.
Bypass input wiring and bypass input breaker rating should be treated as if suppling an
80 kVA load, regardless of the rating of the UPS.
15.
The line-to-line unbalanced output capability of the UPS is limited only by the full load
per phase current values for AC output to critical load shown in Table E through Table H.
The recommended line-to-line load unbalance is 50% or less.
Powerware 9390 UPS (40–80 kVA) Installation and Operation Manual S 164201535 Rev C
®
UPS Model UPS Model
C A U T I O N
DESCRIPTION:
DRAWING NO:
REVISION:
Input Voltage Rating
208V
80% Rated 175A
100% Rated 150A
80% Rated 225A
100% Rated 175A
80% Rated 250A
100% Rated 200A
80% Rated 350A
100% Rated 300A
POWER WIRING INSTALLATION NOTES
164201535---5
B
Installation Information
480V
70A
60A
100A
80A
125A
90A
150A
125A
SHEET:
9 of 16
DATE:
111504
A-19