Chapter 4
System Specifications
Electrical Specifications
119
Electrical Specifications
The following specifications are based on HP Environmental Class C2. Class C2 is a controlled computer
room environment where products are subject only to controlled temperature and humidity extremes.
Throughout this chapter each specification is defined as thoroughly as possible to ensure that all data is
considered to ensure a successful site preparation and system installation.
Grounding
The site building shall provide a safety ground/protective earth for each AC service entrance to all cabinets.
This equipment is CLASS 1 and requires full implementation of the grounding scheme to all equipment
connections. Failure to attach Protective Earth results in loss of regulatory compliance and creates a possible
safety hazard.
Circuit Breaker
Each cabinet using a three-phase, four-wire input requires dedicated circuit breaker to support the Marked
Electrical current of 44A per phase. The facility electrician and local service codes will determine proper
circuit breaker selection.
Each cabinet using a three-phase five-wire input requires a dedicated circuit breaker to support the Marked
Electrical current of 24A per phase. The facility electrician and local service codes will determine proper
circuit breaker selection.
NOTE When using the minimum sized breaker, always choose circuit breakers with the maximum
allowed trip delay to avoid nuisance tripping.
Power Options
Table 4-6 describes the available power options. It may be unusual to list Options 6 and 7 and not 1 and 2.
The options listed are consistent with previous options for earlier Superdome systems.
Table 4-6 Available Power Options
Option
Source
Type
Source Voltage
(nominal)
PDCA
Required
Input Current
Per Phase
200-240 VAC
a
Power Receptacle
Required
6 3-phase Voltage range
200-240 VAC,
phase-to-phase,
50 Hz / 60 Hz
four-wire 44A Maximum
per phase
Connector and plug
provided with a 2.5-meter
power cable. Electrician
must hard-wire receptacle to
60A site power.
7 3-phase Voltage range
200-240 VAC,
phase-to-neutral,
50 Hz / 60 Hz
five-wire 24A Maximum
per phase
Connector and plug
provided with a 2.5-meter
power cable. Electrician
must hard-wire receptacle to
32A site power.