Announcement

Collapse
No announcement yet.

Photocell load rating ...

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Photocell load rating ...

    Hi.. Installed 3 low voltage landscape transformers which I would like have energized via a photo cell. They total 600 watts and have toroidal cores.
    I went through the photocells at the supply house and of all the manufacturers and VA, they all seam to say rated for tungsten and ballast loads..
    Should these tungsten-ballast rated photocells be ok to operate an inductive load??

    Thank you
    " I'm at a crucial part of my painting "...........Monika Danneman

    #2
    The problem, if there is one, will not be because of the inductive load but rather the inrush caused by core saturation and hysteresis when the applied voltage has a random phase at the point the switch closes. As long as there is a load on the transformer, there will not be a large voltage surge on the primary contacts on opening.

    Comment


      #3
      Wow !! Ok. Thank you. In it goes.
      " I'm at a crucial part of my painting "...........Monika Danneman

      Comment


        #4
        If it doesn't last, you could cascade with the photocell controlling a contactor.
        Master Electrician
        Electrical Contractor
        Richmond, VA

        Comment


          #5
          My original thought was a contactor then i thought if the photo cell would handle it why not just the photo cell.... I would probably install a timer with the photo cell to have it turn off at some designated time rather than having the lights on all night.
          Now I'm considering this Honeywell timer... I think it can be set for dusk and a set time off that will adjust itself for daylight savings time so it doesn't have to be adjusted twice a year. It also looks like it's rated for the load...

          I HATE programing these timers, but I think it may be a good way to go...

          Please confirm..

          https://www.supplyhouse.com/Honeywel...18e014b2131bc6

          Thank you
          " I'm at a crucial part of my painting "...........Monika Danneman

          Comment


            #6
            I've programmed enough of them that I can do it without the instructions.


            I don't know whether I'm bragging or complaining.
            Master Electrician
            Electrical Contractor
            Richmond, VA

            Comment


              #7
              If you are leaning towards timer if you haven't already check this one out. This is one of many in the Leviton line of wifi timer switches an dimmers.
              Leviton R01-DW15S-1RZ.

              Comment

              Working...
              X