Single-Phase Ac Usa Branch Circuit Requirements; Xp24000 Single-Phase Ac Cabling For Europe; Connecting 30-Amp, Single-Phase Power Cords - HP XP20000/XP24000 Manual

Figure 12 Connecting 30-amp, single-phase power cords
.
Be sure to install Russellstoll 3933 (alternate, 9C33U0) or 3753 (alternate, 9R33U0W) socket
receptacles between the power distribution panel of the building and the power plugs for the unit.
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.
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.
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 XP24000 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.

XP24000 single-phase AC cabling for Europe

When configured for 50-amp, single-phase power, each XP24000 disk array 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 HP XP24000 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.
XP24000/XP20000 Disk Array Site Preparation Guide 53