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Thread: sp st momentary contact that looks like sp

  1. #21
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    Quote Originally Posted by hbiss View Post
    Why do I have to go searching for the spec sheet? https://image.ylighting.com/is/conte...161751_specpdf

    Looks like they are calling for an on-off SPST switch and a momentary NO push button. They have them separate on a single plate. 4 conductors from the fixture.

    I don't know how you would do that with a single switch.

    -Hal
    YOu don't, but could still do it with two separate switches.
    I live for today, I'm just a day behind.

  2. #22
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    Quote Originally Posted by wyreman View Post

    because my question was much simpler
    and that is I believe
    Somebody has installed a
    2p momentary contact switch w center off

    Never seen such a thing in a Decora style switch, but that doesn't mean there isn't one out there either, but if so simple fix is to tie the two outputs together then no matter which way you push the switch, you get same output signal and it sort of functions same as a spring return push button would.
    I live for today, I'm just a day behind.

  3. #23
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    I have a small HMI and PLC that would work well. Touch the Scene you want and walk away. Probably a phone app out there some place.
    Tom
    TBLO

  4. #24
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    Quote Originally Posted by kwired View Post
    YOu don't, but could still do it with two separate switches.
    Well, yeah. Isn't that what I said?

    Quote Originally Posted by kwired View Post
    Never seen such a thing in a Decora style switch, but that doesn't mean there isn't one out there either, but if so simple fix is to tie the two outputs together then no matter which way you push the switch, you get same output signal and it sort of functions same as a spring return push button would.
    It seems to me that the fixture, at $2800, would come with the control switches and plate.

    -Hal

  5. #25
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    Quote Originally Posted by hbiss View Post
    Why do I have to go searching for the spec sheet? https://image.ylighting.com/is/conte...161751_specpdf

    Looks like they are calling for an on-off SPST switch and a momentary NO push button. They have them separate on a single plate. 4 conductors from the fixture.

    I don't know how you would do that with a single switch.

    -Hal
    I have an X10 switch that combines on/off and dimming in a single button. Push-on/Push-off. Push & hold to dim or brighten.

  6. #26
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    Quote Originally Posted by PaulMmn View Post
    I have an X10 switch that combines on/off and dimming in a single button. Push-on/Push-off. Push & hold to dim or brighten.
    That's not two switches. It's a dimmer.

    -Hal

  7. #27
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    Quote Originally Posted by PaulMmn View Post
    I have an X10 switch that combines on/off and dimming in a single button. Push-on/Push-off. Push & hold to dim or brighten.
    Quote Originally Posted by hbiss View Post
    That's not two switches. It's a dimmer.

    -Hal
    Going a little deeper in technicalities, it has some sort of mini processor inside, that switch is just an input device to the whole assembly. It is programmed to do different things depending on duration of the input signal. The switch mechanism itself doesn't directly switch the output of the assembly like it does for the switches that are the main topic of this conversation are typically used.
    I live for today, I'm just a day behind.

  8. #28
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    Quote Originally Posted by kwired
    Going a little deeper in technicalities, it has some sort of mini processor inside, that switch is just an input device to the whole assembly. It is programmed to do different things depending on duration of the input signal. The switch mechanism itself doesn't directly switch the output of the assembly like it does for the switches that are the main topic of this conversation are typically used.
    Actually this operates the same way except that the switches are remote from the fixture and the fixture contains the mini-processor. I believe the switches are LV. They control the mini-processor through 4 conductors. Line voltage is run directly to the fixture.

    -Hal

  9. #29
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    190420-1943 EDT

    If low voltage logic signals are being switched, then ordinary switch contacts for 120 V can be a poor choice.

    .

  10. #30
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    Another good point to consider.

    -Hal

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