P-164000477 9395P750 kVA / 900 kVA and 1000 kVA / 1100 kVA 24
Revision 002 User’s and Installation Guide
Table 5-8: Recommended bypass and output circuit breaker ratings, output breaker/fuse rating
dimensioned to ensure fault clearing in battery operation
There is no DC disconnect device within the UPS. A battery disconnect switch is recommended, and
may be required by local codes when batteries are remotely located. The battery disconnect switch
should be installed between the battery and the UPS.
External DC input overcurrent protection and disconnect switch for the remote battery location is to be
provided by the user. Table 5-9 lists the maximum rating for continuous-duty rated circuit breakers
satisfying the criteria for both.
Table 5-9: Recommended DC input circuit breaker ratings
Rated battery current is computed at 1.7 volts per cell. The battery wiring/busbar 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.
UPS model
Circuit breaker rating
Load rating
400 V
Bypass/Output/MOB/MBS Output fuse
9395P 750, 3*250 100% rated 1250 A 200 A (gG type)
9395P 900, 3*300 100% rated 1500 A 200 A (gG type)
9395P 1000, 4*250 100% rated 1500 A 250 A (gG type)
9395P 1100, 4*300 100% rated 2000 A 250 A (gG type)
UPS model
Input breaker rating
600 VDC
9395P 750, 3* 250 kVA 2000 A
9395P 900, 3* 300 kVA 2500 A
9395P 1000, 4* 250 kVA 3200 A
9395P 1100, 4* 300 kVA 3200 A
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