22
UPS 675-1100 kVA 3..4x(225-275) kVA
1029052
User’s and Installation Guide
Revision 008
3.2.2 UPS system power wiring preparation
NOTE
If installing a maintenance bypass, a minimum of two separate feeds with upstream feeder
breakers, or a single feed with two upstream feeder breakers, must be provided: one for the UPS
or rectifier input breaker (RIB) (if installed) and one for the maintenance bypass input. DO NOT
use a single feed or a single feeder breaker to supply both the UPS or RIB and the maintenance
bypass. If a bypass input breaker (BIB) is installed in the maintenance bypass and a single-feed
UPS is being installed, a single feed to the maintenance bypass is acceptable for supplying both
the UPS and the bypass.
For external wiring requirements, including the minimum size of external wiring, see Table 3-4. The
power wiring connections for this equipment are rated at 90°C. If wire is run in an ambient temperature
greater than 30°C, higher temperature wire and/or larger size wire may be necessary.
NOTE
Callout letters A, B, C, and D map to Figure 6-6 on page 82.
Bypass wiring data is not applicable to Input Output Module (IOM) configurations.
Units
Rating 50/60 Hz
Rating
kVA
kW
675
(607)
825
(742)
900
(810)
1100
(990)
Input and output voltage
Volts
400/400
400/400
400/400
400/400
AC input to UPS rectifier
Full load current plus battery recharge current
(3) phases, (1) ground
A
Amps
1120
1369
1493
1825
Minimum conductor size
Number per Phase
mm
2
(each)
Refer to national and local rules
AC input to UPS bypass
Full load current at nominal voltage
(3) phases, (1) neutral–if required, (1) ground
B
B
Amps
974
1191
1299
1588
Minimum conductor size
Number per phase
mm
2
(each)
Refer to national and local rules
DC input from battery to UPS
(1) positive, (1) negative c
C
Amps
1600
2000
2200
2600
minimum conductor size
number per pole
mm
2
(each)
Refer to national and local rules
