Connecting power
For redundant power distribution, use vertical Power Distribution Units (PDUs) on
each side of each rack that cover the rack’s full height. The power supplies in each
chassis are capable of operating on 100-120 VAC or 200-240 VAC, 50 Hz or 60 Hz
power.
The voltage used is specific to the site and country of installation.
See the Power Calculator to determine total system power requirements: https://
powercalculator.emc.com/PC3/
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Do not exceed the current capacity of the power distribution unit by adding more
products than it can support.
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For safety of personnel and to insure proper functioning of systems, it is
recommended that each AC circuit of the power distribution unit have a double
pole AC breaker system.
Ensure that the PDU can handle the overall power load.
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The rack’s electrical distribution and earth ground bonding must meet the
requirements of UL 60950-1 and IEC 60950-1, and local electrical safety building
codes.
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The PDUs must have a sufficient quantity of single-phase power outlets with an
earth ground conductor (safety ground). A safe electrical earth ground connection
must be provided to each power cord.
Each ships with two 1M C13/C14 PDU power cords. The C13 (IEC-60320-C13) side
connects to the power supply, and the C14 (IEC-60320-C14) side connects to most
PDUs.
Figure 35
C14 (left) and C13 (right) power cords
Attaching the power supplies
Procedure
1. Install the Data Domain controller and the ES30 shelves in the rack or racks
with the PDUs.
2. Cable the expansion shelves to the controller and to each other as described in
Shelf cabling rules and guidelines on page 21.
Installing the Shelves
Connecting power 73
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