Powerware 9330 Installation & Operation Manual page 167

14.
External overcurrent protection is not provided by this product, but is required by codes.
Refer to Table A for wiring requirements. If an output lockable disconnect is required, it is
to be supplied by designated personnel.
15.
Table E lists the maximum rating for input circuit breakers. When wiring a single feed
input, the rating requirements for the input circuit breakers are superceeded by the ratings
listed in Table F.
CAUTION: To reduce the risk of fire, connect only to a circuit provided with
maximum input circuit breaker current ratings from Table E in accordance with the
National Electrical code, ANSI/NFPA 70.
16.
When the optional Options Cabinet is used, source protection for the AC input should be
treated as if you were supplying a 20 kVA three phase transformer for the
Powerware 9330 (20 kVA), to allow for inrush current.
17.
Bypass and output overcurrent protection and bypass and output disconnect switches are
to be provided by the user. Table F lists the maximum rating for bypass and output circuit
breakers satisfying the criteria for both.
Table F. Maximum Bypass and Output Circuit Breaker
18.
Battery voltage is computed at 2 volts per cell as defined by Article 480 of the NEC.
Rated battery current is computed at the computed voltage.
Powerware 9330 (IBM 9910 20 kVA) Installation and Operation
164201491 REV. B 013004
Table E. Maximum Input Circuit Breaker Ratings
Powerware System Powerware System
9330 (IBM 9910 20 kVA)
Ratings
Powerware System Powerware System
9330 (IBM 9910 20 kVA)
Input Voltage Rating
DC
208VAC
70 70
Output Voltage Rating
208V
70
DESCRIPTION:
POWER WIRING INSTALLATION NOTES
DRAWING NO:
164201491---1
REVISION:
A
SHEET:
4 of 4
DATE:
071503
A ---5