Server Technology QUICKSPECS BL20P Manuel D’Utilisation

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:

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.

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

 

1 or 2

up to 5

36U

1

up to 3

21U

1

1

9U

 

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

DA - 11411   Worldwide QuickSpecs — Version 24 — 9.24.2004

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