Results 1 to 4 of 4

Thread: Shuttle dimmer problems

  1. #1
    New Member
    Join Date
    May 2018
    Location
    Brakpan
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Angry Shuttle dimmer problems

    Problem with Shuttle dimmer (SDIM-T-LED-500w)

    Replaced a shuttle dimmer module that was giving problems. (all lights connected to the dimmer module would turn off after about 1-3 minutes). Replaced it but problem does not go away. The previous module has been working for 5 months without any problems.

    Lights connected - 58 x 5W golf ball lights
    Light fitting - 29 x eurolux optica pendant
    Dimmer switch - Clipsal 10A 30series bell press switch
    Dimmer module - Shuttle SDIM-T-LED-500W universal module (trailing default)

    Wattage should not be a problem?
    When dimmer module is bypassed everything works perfectly. Tested and inspected the wiring

  2. #2
    Full Member
    Join Date
    Mar 2019
    Location
    East london
    Posts
    62
    Thanks
    0
    Thanked 10 Times in 10 Posts
    Hi LukasF

    Had this before and found that the lamps were not of the dimmable kind.

    You get dimmable & non dimmable lamps.

    Turn the lights on, set the dimmer for full brightness and see what happens. Chances are it works ok and won't switch off by itself like you described.

    Another test you can do is to replace just 1 lamp with a filiment or halogen lamp and see what happens.

    Regards Derek

  3. #3
    Full Member
    Join Date
    Mar 2018
    Location
    Western Cape
    Posts
    85
    Thanks
    11
    Thanked 11 Times in 10 Posts
    Morning Lucas

    With the shuttle dimmer it is not as easy as taking the wattage and dividing the load for LED lamps.

    Two reasons for this:

    1) Halogen lamps have a unity power factor and LED's lamps in general have a poor power factor unless you purchase the ones with a higher power factor the highest I have found is 95%
    2) It may have a start-up inrush current or repetitive peak current during every half-cycle that makes it appear much worse, i.e. behaves like a higher wattage load

    Secondly on the instructions shuttle only allows for one dimmer unit per light box due to heat

    I have found that if I take the wattage of the dimmer and divided by the equivalent halogen rating this is the number of LED bulbs I will add to the dimmer.

  4. Thanks given for this post:

    AndyD (03-Oct-19)

  5. #4
    New Member
    Join Date
    Nov 2019
    Location
    Cape Town
    Posts
    3
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Hi Lucas

    The Shuttle dimmer has a problem with loosing it memory settings. This happens when there is a power failure. The result is that is flickers after the power comes back on.

    I installed many in a hotel and initially it looks that they work fine. Then I had to come back to fix some every time they did a generator test. I first thought is was the output voltage of the generator. But after last month load shedding I got the same problem and got complains from other clients were I installed Shuttle LED dimmers. After the fifth time going back I decided to replace all of them with Bikkel dimmers. This solved the problem. I hold my fingers crossed once the next load shedding hits us. I can not imagine they were not aware of this problem at shuttle. As my supplier told me they got lots of comebacks of these LED dimmers especially after the load shedding last month.

Similar Threads

  1. [Opinion] NUR Conduit problems
    By Andrea McCarthy in forum Electrical Contracting Industry Forum
    Replies: 2
    Last Post: 10-Jun-19, 01:12 PM
  2. Excel problems
    By Cath in forum General Business Forum
    Replies: 1
    Last Post: 24-Feb-18, 10:08 AM
  3. Problems with 3G
    By Chatmaster in forum Technology Forum
    Replies: 2
    Last Post: 16-Nov-07, 04:42 PM

Tags for this Thread

Did you like this article? Share it with your favourite social network.

Did you like this article? Share it with your favourite social network.

Posting Permissions

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