Results 1 to 6 of 6

Thread: Recommendations on small power supply transformer

  1. #1
    Join Date
    Dec 2014
    Location
    Washington, USA
    Posts
    82

    Recommendations on small power supply transformer

    Can anyone help make a recommendation for how to power up our SMA Cluster Controller from a single leg of 277v from an ac panel? Something small that we could put inside the 2' x 2' x 12" enclosure with the Cluster Controller.

    Extra points if it's a link to the Platt website!

    Anything I need to worry about here code-wise?

    There is no option to find any other panel nearby or existing circuit that is not 480/277

    Thank you in advance!

  2. #2
    Join Date
    May 2013
    Location
    Massachusetts
    Posts
    2,235
    Quote Originally Posted by Anode View Post
    Can anyone help make a recommendation for how to power up our SMA Cluster Controller from a single leg of 277v from an ac panel? Something small that we could put inside the 2' x 2' x 12" enclosure with the Cluster Controller.

    Extra points if it's a link to the Platt website!

    Anything I need to worry about here code-wise?

    There is no option to find any other panel nearby or existing circuit that is not 480/277

    Thank you in advance!
    It can be powered off of 24 VDC. While this isn't a single leg solution, I've used this three-phase power supply to power the SMA CC from 277/480V:
    https://cdn.automationdirect.com/sta...threephase.pdf

  3. #3
    Join Date
    Jul 2012
    Location
    Chicago, IL
    Posts
    27
    Quote Originally Posted by Anode View Post
    Can anyone help make a recommendation for how to power up our SMA Cluster Controller from a single leg of 277v from an ac panel? Something small that we could put inside the 2' x 2' x 12" enclosure with the Cluster Controller.
    I have used this 277 to 24V power supply for cluster controllers with good results: https://www.alliedelec.com/phoenix-c...8730/70001025/

    Just put it on a breaker and in a weather tight enclosure if outside and you should not have any code issues.

  4. #4
    Join Date
    May 2013
    Location
    Massachusetts
    Posts
    2,235
    Quote Originally Posted by Garrison View Post
    I have used this 277 to 24V power supply for cluster controllers with good results: https://www.alliedelec.com/phoenix-c...8730/70001025/

    Just put it on a breaker and in a weather tight enclosure if outside and you should not have any code issues.
    The input voltage range on that power supply does not include 277V.

  5. #5
    Join Date
    Dec 2014
    Location
    Washington, USA
    Posts
    82
    Quote Originally Posted by Carultch View Post
    It can be powered off of 24 VDC. While this isn't a single leg solution, I've used this three-phase power supply to power the SMA CC from 277/480V:
    https://cdn.automationdirect.com/sta...threephase.pdf
    Thank you very much, Carultch!

  6. #6
    Join Date
    Jul 2009
    Location
    Mesa Arizona
    Posts
    251
    Consider
    http://www.mouser.com/search/Product...alkeyLDW120-24
    Input Voltage: 200 VAC to 500 VAC, 250 VDC to 725 VDC
    DIN Rail Power Supplies 120W 24VDC 5A DIN Rail PS

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •