NonStop NS1000 Planning Guide (H06.05+)

System Installation Specifications
HP Integrity NonStop NS1000 Planning Guide—542527-004
3-4
Enclosure AC Input
Enclosure AC Input
Enclosures (such as blade element, IOAM, and so forth) require:
Each PDU is factory wired to distribute the phases to its receptacles. Refer to Power
Distribution Unit (PDU) on page 5-5. Factory-installed enclosures are connected to the
PDUs for balanced load among the phases.
Enclosure Power Loads
The total power and current load for a modular cabinet depends on the number and
type of enclosures installed in it. Therefore, the total load is the sum of the loads for all
enclosures installed. For examples of calculating the power and current load for
various enclosure combinations, refer to Calculating Specifications for Enclosure
Combinations on page 3-9.
In normal operation, the AC power is split equally between the two PDUs in the
modular cabinet. However, if one of the two AC power feeds fails, the remaining AC
power feed and PDU must carry the power for all enclosures in that cabinet.
Power and current specifications for each type of enclosure are:
Specification Value
Nominal input voltage 200/208/220/230/240 V ac RMS
Voltage range
*
180-264 V ac
Nominal line frequency 50 or 60 Hz
Frequency ranges 47-53 Hz or 57-63 Hz
Number of phases 1
* Voltage range for the maintenance switch is 200-240 V ac.
Caution. For Integrity NonStop NS1000 system enclosures installed in a rack, balance the
current load among available phases. If three phases are available, using only one of the
available three phases, especially for larger systems, can cause unbalanced loading and might
violate applicable electrical codes.
Enclosure Type
AC Power
Lines per
Enclosure
1
Apparent Power
(volt-amps
measured on
single AC line
with one line
powered)
Apparent Power
(volt-amps
measured on
single AC line
with both lines
powered)
5
Peak
Inrush
Current
(amps) (
page 1 of
2)
Blade element
(rx2620):
4 GB memory
8 GB memory
2
2
220
240
Per line:
125
140
Total:
250
280
17
17
IOAM enclosure
2
4 420 250 500 68