What is the power draw of the SPA500?

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Steven Howes Wed, 04/28/2010 - 01:57
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It varies a bit depending on what it is doing, but on PoE a 504 generally stays below 5W. Mains could be more/less depending on voltage conversion etc.


lzuniga99 Wed, 05/05/2010 - 15:27
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Hi Glenn the table you posted it's very help full, that info should be included in the product datasheet.

So I want to confirm, that provided  I have an ESW-520-24P switch with 180 Watts power budget, this switch is supposed to support 24 SPA502 IP Phones at full load?


Glenn Quesenberry Fri, 05/07/2010 - 12:28
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  • Cisco Employee,

Per the chart the maximum power draw for the SPA502 is 1.620 watts.  The 180 watt power budget of the ESW-520-24P should be more than sufficient for that number of phones.

Best Regards,


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