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BX600 S3 Operating Manual 47
Installing the Hardware Connecting the System to the Mains
Figure 12: Connecting the basic unit to the mains
Ê First connect the C19 connector of the power cables to the power supply
units of the basic unit (1), and then plug the power plug (2) into the USV,
power distribution unit (PDU) or into an external socket.
V CAUTION!
Always connect the power cable to the power supply units first, and then
to the mains.
I Please make sure that each of the power supply units is connected to a
different phase. This will provide you with additional phase redundancy
for high availability configurations. If one phase has failed, the power
supply units connected to the other phases keep active. You can get full
phase redundancy with up to three power supply units. With four power
supply units, two of them are to be connected to one phase (see also
“Related Publications” on page 157).
Phase redundancy is possible in regions, where a single phase provides
200 - 240V; in other regions with lower single phase voltage, two phases
must be coupled and complete phase redundancy thus is not possible.
1
2