HP StorageWorks XP20000 Disk Array Site Preparation Guide (AE190-96002, September 2007)

Connect each AC power cable to a separate receptacle on a separate circuit breaker, and connect
each pair of power cords (the left pair and the right pair) to separate distribution panels to ensure
power fault tolerance.
CAUTION:
Do not applypower untilinstructedtodosobyHP. An HP representative should be present wheneverthe
disk array is being connected to a new power source.
Branch circuit requirements
To protect the disk array, your building must be wired correctly. Each supply ( “hot”) conductor must
be protected by a short-circuit protective device and by a n overcurrent protective device. The table
listed under AC line voltage requirements provides specifications for the overcurrent protective devices
required for single-phase operation.
All protective devices must comply with national standards of the countr y where the units a re to be
installed. If a protective device interrupts any supply conductor, it must also interrupt all other supply
conductors.
Eu ropean AC power cabling
Each HP XP20000 rack each requires 20-amp, single-phase 200 VAC power supplied by four power
cords with plugs, four receptacles, and four main disconnect devices (circu it breakers). If the second
rack contains only one disk chassis, only two power cords and breakers are required, but four are
recommended if you plan to add another disk chassis later.
The HP XP20000 comes from the factory with the AC power cables and plugs or stripped ends you have
ordered. Plug types are specified under the heading, AC inputs. The opposite end of the p ower cord
connects to the HP XP20000 power distribution unit (PDU) input, which is a t ype IEC 320-C20 connector.
European branch circuit requirements
To protect the disk array, your building must be wired correctly. Each supply (“hot”) conductor must b e
protected by a short-circuit protective device and by a n overcurrent protective device. The table listed
under AC line voltage requirements provides specifications for the overcurrent protective devices required
for single-phase operation. All protective devices must comply with national standards of the countr y
where the units are to be installed. If a protective device interrupts any supply conductor, it must also
interrupt all other supply conductors.
Overcurrent protection is also required for the n eutral conductor.
Your electrician should know the appropriate code requirements for your location/site and should be
able
to wire power distribution to the HP XP20000 accordingly.
Connecting the European power-supply cables
Connect each AC power cable to a separate receptacle on a separate circuit breaker. Connect ea ch
pair of power cords (the left pair and the right pair) to separate distribution panels to ensure power fault
tolerance. Single-phase power cable wiring is shown in the figure below.
CAUTION:
Do not applypower untilinstructedtodosobyHP. An HP representative should be present wheneverthe
disk array is being connected to a new power source.
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Electrical specifications