NonStop NS-Series Planning Guide (H06.05+)

System Installation Specifications

HP Integrity NonStop NS-Series Planning Guide—529567-008

3-5

Branch Circuits and Circuit Breakers

Modular cabinets for the Integrity NonStop NS-series system contain two PDUs. Each

of the two PDUs requires a separate branch circuit of these ratings:

Branch circuit requirements vary by the input voltage and the local codes and

applicable regulations regarding maximum circuit and total distribution loading. Select

circuit breaker ratings according to local codes and any applicable regulations for the

circuit capacity.

Enclosure AC Input

Enclosures (such as NonStop Blade Element, processor switch, IOAM, and so forth)

require:

Each PDU is wired to distribute the load segments to its receptacles. Refer to Power

Distribution Units (PDUs) on page 5-6. Factory-installed enclosures are connected to

the PDUs for a balanced load among the load segments.

Region Volts Amps

North America and Japan 208 24

North America and Japan 200 - 240 40

International 380 - 415 16

International 200 - 240 32

Caution. Be sure the hardware configuration and resultant power loads of each cabinet within

the system does not exceed the capacity of the branch circuit according to applicable electrical

codes and regulations.

Note. If your system includes the optional rackmounted HP R5500 XR UPS, the modular

cabinet will have one PDU located on the rear left side and four extension bars on the rear right

side. To provide redundancy, components are plugged into the left-side PDU and the extension

bars. Each extension bar is plugged into the UPS.

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. If you are installing Integrity NonStop NS-series system enclosures in a modular

cabinet, balance the current load among the available load segments. Using only one of the

available load segments, especially for larger systems, can cause unbalanced loading and

might violate applicable electrical codes. Connecting the two power plugs from an enclosure to

the same load segment causes failure of the hardware if that load segment fails.