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Chapter 2
System Specifications
Electrical Specifications
63
Electrical Specifications
The following specifications are based on ASHRAE Class 1. Class 1 is a controlled computer room
environment, in which products are subject 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 must provide a safety ground/protective earth for each ac service entrance to all cabinets.
CAUTION This equipment is Class 1 and requires full implementation of the grounding scheme to all
equipment connections. Failure to attach to protective earth results in loss of regulatory
compliance and creates a possible safety hazard.
Circuit Breaker
Each cabinet using a 3-phase, 4-wire input requires a dedicated circuit breaker to support the Marked
Electrical current of 44 A per phase. The facility electrician and local service codes will determine proper
circuit breaker selection.
Each cabinet using a 3-phase 5-wire input requires a dedicated circuit breaker to support the Marked
Electrical current of 24 A 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 2-6 describes the available power options. Table 2-7 provides details about the available options. The
options listed are consistent with options for earlier Superdome systems.
Table 2-6 Available Power Options
Option
Source
Type
Source Voltage
(Nominal)
PDCA
Required
Input Current
Per Phase 200
to 240 V ac
a
Power Receptacle
Required
6 3-phase Voltage range 200
to 240 V ac,
phase-to-phase,
50 Hz / 60 Hz
4-wire 44 A maximum
per phase
Connector and plug
provided with a 2.5 meter
(8.2 feet) power cable.
Electrician must hard wire
receptacle to 60 A site
power.