Quickspecs – Server Technology QUICKSPECS BL20P User Manual
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ProLiant BL p-Class
Power System and
Rack Information
NOTE: To determine power configuration please refer to the ProLiant BL p-Class Overview and
Planning Whitepaper and sizing tool, please see the following URL:
ProLiant BL p-Class
Power Enclosure
3U (5.25-inch), 19-inch wide, 29-inch deep (0.48-meter wide, 0.74-meter deep), Dual input single
phase and three phase models available.
BL p-Class power enclosure provides external, shared hot-plug power. Each three-phase power
enclosure houses up to six hot-plug power supplies each single-phase power enclosures hold up
to four hot-plug power supplies to power the BL p-Class server blades and interconnects
Please use the sizing utility to determine the power needed for each configuration
Power enclosures and power supplies are not needed if using facility DC (-48V DC ± 10%). If
using facility DC, only Facility DC Power Connection kit part number (240563-B21) is needed.
BL p-Class Power
Distribution
In the ProLiant BL p-Class infrastructure, redundant -48 VDC power (from the power enclosures or
facility DC power) is distributed from the power enclosures to the server blade enclosures through
the bus bar system. Hinges attach the ProLiant BL bus bars to the rails in a rack. The bus bars
swing open from the center to enable easy rear access to the server blades and network cables.
Power is distributed redundantly through independent A- and B-sided bus bars.
Three different power distribution solutions are available depending on the maximum number of
server blade enclosures planned for the rack:
ProLiant BL p-Class scalable bus bar
ProLiant BL p-Class mini bus bar
NOTE: To support a full 42U rack of BL20p server blades (6 server blade enclosures), two mini
bus bars are needed.
ProLiant BL p-Class power bus box
Power Enclosures Supported
Server Blade Enclosures
Supported
Max. Rack Space Occupied
Scalable Bus Bar
1 or 2
up to 5
36U
Mini Bus Bar
1
up to 3
21U
Power Bus Box
1
1
9U
Required Power
Source
Two 30amp redundant power feeds per power enclosure
Connectors
–NEMA receptacles
(NA/Japan)
NA 1-phase
L6-30, 250v, 30A 3-wire
NA 3-phase
L15-30, 250V, 30A, 4-wire
–IEC 309 Pin & Sleeve
connectors (International)
Intl 1-phase
250V, 32A, 3- pin (2 pole + ground)
Intl 3-phase
380-415V, 32A, 5--pin (4 pole + ground)
Optimized for power cabling from bottom and network cabling from top
For cabling information, refer to the Web site at
QuickSpecs
HP ProLiant BL20p p-Class Server Blade
Standard Features (Power System and Rack Information)
DA - 11411 Worldwide QuickSpecs — Version 24 — 9.24.2004
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