Fujitsu PRIMERGY BX600 S3 Service Supplement Manual page 19

Important notes Notes on power cabling
Single basic unit with a single phase input
Phase 1
Figure 3: Basic unit with a single phase input
This is the simplest of the configuration options. All 4 power supply units are
connected to the same phase. This would require a single phase providing suffi-
cient power.
This power cabling option does not provide phase redundancy and therefore is
not recommended.
Service Supplement 19