HP StorageWorks XP10000 Disk Array Site Preparation Guide (AE102-96014, March 2008)

3 Electrical specifications for the XP10000
disk array
The detailed electrical specifications in this chapter are provided to help your site electrician perform
any necessary electrical work related to site preparation.
AC line voltage requirements
The AC power requirements are essentially the same for both the primary and the second racks. Each
rack operates on 200 VAC nominal, 20 amps, 50 or 60 Hz, single-phase power. An independent
branch circuit and circuit breaker is required for each AC input power cord.
Table 15 lists specific power requirements.
Table 15 AC power requirements
240 VAC230 VAC220 VAC208 VAC200 VACParameter
221212202191184Minimum operating voltage (VAC)
254244233220212Maximum operating voltage (VAC)
16A16A16A16A16ARated line current per power cord
44444Number of power cords
20A20A20A20A20ARecommended circuit breakers
44444Number of circuit breakers
Important notes:
208 VAC is 60 Hz only. Rated line current per power cord is the maximum allowable current under
worst case conditions. This value applies to each individual power cord and is specified in RMS
amperes. For the second rack, four power cords and circuit breakers are strongly recommended even
though a minimum configuration containing only one expansion disk chassis requires only 2 power
cords and 2 circuit breakers. If a second expansion disk chassis is added to the second rack, four
power cords and four circuit breakers are required.
AC inputs
The disk array primary rack has four separate connections to 200 VAC, single-phase, 20-amp power.
The AC power inputs are distributed to four power distribution units (PDUs) as shown in Figure 5. This
provides fault-tolerant operation of the disk array. Each pair of AC inputs (00/10 and 01/11) must
be capable of supporting the entire current demand for the rack. Each PDU is fitted with an IEC320-C20
inlet that fits the supplied input power cord, and four IEC320-C13 outlets that connect to the hardware
inside the rack by means of supplied cables.
XP10000 Disk Array Site Preparation Guide 41