In switches, like Cisco Catalyst 2960X-24TS-L, datasheet mention input power: 100 to 240 VAC, 1A to 0.5A. So, I assume input current = 1A@100VAC and 0.5A@240VAC

or Cisco Catalyst 3850 + Power Supply PWR-C1-350WAC: 100-240VAC, 4-2A. So, I assume input current = 4A@100VAC and 2A@240VAC

But in Cisco ASA 5525-X datasheet: AC range line voltage : 100 to 240 VAC, AC current : 4.85A

I am expecting that datasheet current (4.85A) is at 100 VAC and because we use 220 VAC, it should be 2 or 2.5A.

I am calculating input current to size the UPS requirement and considering 4.85A is too high.

is my expectation, for 2A, correct ? do you know a reference from manual or datasheet ?

  • If you look at community.cisco.com/t5/firewalls/… you will see someone else asking this exact question and the answer probably (2.5A at 220V). – Jesse P. Apr 30 at 13:00
  • Yes, he said the same but with no reference. – Mohamed Allam Apr 30 at 14:34
  • True. Can you not just plug it in and see what the UPS reports that port at? – Jesse P. Apr 30 at 14:38
  • I didn't purchase it yet .. I can`t purchase until I get approval on these design calculations – Mohamed Allam May 1 at 3:30

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.