Branch Circuit Requirements - HP StorageWorks XP128 Installation Manual

Branch circuit requirements

44
The power cords provided with your 30-amp, three-phase disk array are
non-shielded, type ST or equivalent, with four #8 AWG (minimum)
conductors terminated at one end with an assembled plug connector.
To protect your 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 current specifications
for the overcurrent protective devices required for three-phase operation are
listed in the table on
All protective devices must comply with national standards of the country
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 not required for the neutral conductor of this unit.
Only 50 Hz, three-phase configurations have a neutral conductor.
page 36.
HP StorageWorks Disk Array XP128: Site Preparation Guide