Power question - Nexus switches

Unanswered Question
May 1st, 2009

Is there any savvy guys/gals out there that can answer a question for me.

I'm looking to purchase some Nexus switches. Our infrastructure cabinets are APC with the following model PDU:

APC Rack PDU, Metered, Zero U, 30A, 200/208V, (20)C13 & (4)C19

I cannot seem to locate the amperage draw of a Nexus 5020 and 5010 to determine if there will be sufficient amperage to drive these switches.

Any thoughts would be greatly appreciated.

I have this problem too.
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Under the hardware installation manual it shows the requirements:

http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/hw/installation/guide/techspec.html#wp1070378

Depending which Nexus...

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9402/ps9512/Data_Sheet_C78-437761.html

http://www.cisco.com/en/US/docs/switches/datacenter/hw/nexus7000/installation/guide/n7k_installation_psu.html#wp1063424

The 7000 series doc shows this:

Prerequisites for Connecting Power Supply Units to AC Power

Before you connect the power supply units to AC power sources, you must install the power supply units in the chassis, and you must make sure that the appropriate AC power source receptacles are located close enough to the power supply units that the power cords can connect the power supply units to the AC power sources. For 6-kW power supply units, you must have one or two 20-A-rated, 110-V or 220-V AC circuits. For 7.5-kW power supply units, you must have one or two 30-A-rated, 220-V AC circuits.

You should connect each power supply input to a dedicated branch circuit. For North American installations, the 6-kW power supply unit requires one or two 20-A circuits, and the 7.5-kW power supply unit requires one or two 30-A circuits. For international installations, circuits must be sized by local and national codes. If you are using the input source redundancy mode, you must have at least two circuits.

Bruce Summers Fri, 05/01/2009 - 07:33

thanks for the reply. I looked at that...specifically i was looking for the amperage draw of the 5020/5010...

Since posting this, cisco responded with a response that the switches draw 5.4amps.

thanks for your post.

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