HP 275 manual Current, In-rush current, Input over-current, Rate Max Rated Power

QuickSpecs

HP ProLiant BL25p Server Blade

Technical Specifications

Current	Max steady state input	62.5A per server blade enclosure installed at -
	current	48VDC
	Max steady state current
	per feed/total
	Power bus boxes	70 A/70A
	Mini bus bars	210 A/210A
	Scalable bus bars	210 A/350A or equivalent of 175A per feed*
In-rush current	Must support up to 2X the maximum operating current per server blade
	enclosure (125 A) for up to 1.0 mS
Input over-current	Customer provided fusing for facility DC feeds that protects the system from
	catastrophic over-current within 20 uS. Fuse should sustain all in-rush and
	operating currents.
Max Input Current Slew	1A/uS
Rate
Max Rated Power	3000W per server blade enclosure
Connections and Cables	Compaq provided facility DC cable connection kit:
	The facility DC connection kit supports the connection of up to four -
	48VDC, RETURN pairs and ground

The power cable assemblies consist of 1/0AWG, color-coded, flexible cable rated at 105° C, terminated with bus mating connectors at one end and unterminated at the other end. The cable length provided enables the customer to route to a fuse panel within or adjacent to the rack.

NOTE: *All systems support redundant A and B feeds. Scalable bus bars support dual A and dual B feeds.

**Periodic and random noise (PARD). Maximum allowable peak-to-peak ripple and noise (as measured at the load on any output channel). The ripple and noise is measured over a 20 Hz to 100 MHz frequency band. A resistive load (non-electronic) is used for this measurement. Each output is by-passed to return by a 10uF tantalum capacitor with an ESR less than 100 milli-Ohms in parallel with a 0.47 uF ceramic capacitor, at the point of load. The load cable is 12 feet of twisted wire capable of carrying the current. The printed wiring board assembly is installed in its enclosure for this measurement, or the measurement leads are properly shielded with Earth grounds applied to the insert.

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The information contained herein is subject to change without notice.

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The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

DA - 12160 North America — Version 7 — June 27, 2005 Page 45