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Chapter 2
System Specifications
Electrical Specifications
66
WARNING Beware of shock hazard. When connecting or removing input power wiring, always
connect the ground wire first and disconnect it last.
Component Power Requirements
Table 2-8 and Table 2-9 list the ac power requirements for an HP Integrity Superdome/sx2000 system. These
tables provide information to help determine the amount of ac power needed for the computer room.
I/O Expansion Cabinet Power Requirements
The I/O expansion cabinet (IOX) requires a single-phase 200-240V ac input. Table 2-10 lists the ac power
requirements for the I/O expansion cabinet.
NOTE The IOX accommodates two ac inputs for redundancy.
Product label maximum current, 3-phase, 4-wire 44 A rms Per phase at 200 to 240 V ac
Product label maximum current, 3-phase, 5-wire 24 A rms Per phase at 200 to 240 V ac
Power factor correction 0.95 minimum
Ground leakage current (mA) > 3.5 mA See the following WARNING.
Table 2-9 Component Power Requirements (Without Support Management
Station)
Component
Component Power Required
50 Hz to 60 Hz
a
a. A number to use for planning, to allow for enough power to upgrade through
the life of the system.
Maximum configuration for SD16 8,200 VA
Maximum configuration for SD32 12,196 VA
Cell board 900 VA
I/O card cage 500 VA
Table 2-8 Power Requirements (Without Support Management Station)
Requirement Value Comments