Single-Phase Ac Usa Branch Circuit Requirements; Single-Phase Ac Cabling For Europe; Connecting The Power Supply Cords; 50-Amp Single-Phase Power Cords For Europe - HP StorageWorks XP12000 - Disk Array Site Preparation Manual

The power cords provided with the disk array are nonshielded, type ST or equivalent with three #10
AWG (minimum) conductors terminated at one end with an assembled plug connector.

Single-phase AC USA 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 an overcurrent protective device. The tables
listed in "AC line voltage
for single-phase operation.
All protective devices must comply with national standards of the country where the units are installed.
If a protective device interrupts any supply conductor, it must also interrupt all other supply conductors.
In many cases, local codes do not allow a branch circuit fitted with a 50-amp receptacle or connector
to be protected by an overcurrent protection device with a rating lower than 50 amps. You can order
the HP XP12000 disk array with the 30-amp power option to comply with these local codes. Your
electrician knows the appropriate code requirements for your location/site.

Single-phase AC cabling for Europe

When configured for 50-amp, single-phase power, each rack has two power cords and two main
disconnect devices so that AC power can be supplied from separate power distribution panels. When
configured for 30-amp, single-phase power, each disk array rack has four power cords and four main
disconnect devices.
CAUTION:
An HP representative should be present whenever the disk array is being connected to a new power source
for the first time.

Connecting the power supply cords

50-amp single-phase power cords for Europe

Each 50-amp HP XP12000 disk array rack has two power supply cords. The power cords included
with the unit are type H07RN-F or equivalent with three 10 square mm conductors.
CAUTION:
Be sure to connect the power cords to the distribution panel as shown in
neutral conductor may cause damage to the disk array. To reduce the risk of a wrong connection, use a
plug and socket that are approved for this disk array. It is your electrician's responsibility to select and
install the proper plug.
56 Electrical specifications
requirements" on page 49 specify the overcurrent protective devices required
Figure 14. Improper wiring of the