Wanted: electronically switchable crossover / changeover switch

  • Erstellt am 2022-05-17 00:10:56

karl.jonas

2022-05-17 00:10:56
  • #1
Actually seems obvious to me, but I can't find one: I want to install an additional switch in a conventionally wired lighting installation (i.e. switch-lamp or switch-switch-lamp; no push button) that I can control electronically via a contact, not manually via a rocker switch. And if this e-switch ever breaks, the (conventional) rest still works. Does this switch exist?
 

pkiensch

2022-05-17 08:38:05
  • #2
That should be achievable with a (bistable) pulse switch.
 

PhiIipp

2022-05-17 09:14:04
  • #3
I don't think I fully understand the task. How should the lamp be controlled in normal operation? By the switches, electronically, or both at the same time? With a two-way switch that’s not so simple. The question is also why it should be planned to be fail-safe. Probably the most economical way would be to keep an identical switch on hand that can be simply and quickly replaced in the rare case of failure. I don’t see how that should work. But maybe I’m just missing something.
 

karl.jonas

2022-05-17 09:48:00
  • #4
Thank you both for your answers. my mental scenario is that I actually like "classic" circuits (they work comprehensibly and have for many years), but at the same time I would like to at least enable "smart home" functionality. The idea is: I install a classic circuit (for example in the hallway: a three-way switch circuit with three switches for the hallway lighting) and prepare so that a fourth electronically controlled three-way switch could hide in a flush-mounted box. This makes me very flexible and would combine both worlds cost-effectively.

The suggestion from seems to fit. I had to search quite a bit to find something reasonably understandable, but for example the eltako ESR61M-UC seems to be able to do that. In my initially classic installation, I would have to provide space in a flush-mounted box and lay a control wire for the impulse switch there. The control wire then goes from the eltako to where there is more "intelligence," probably a microcontroller on Ethernet.

1. Was that understandable? 2. Could that make sense (I know many alternatives are discussed here)? Or would it be obviously more reasonable (for professionals) to plan the entire installation from the start with push-buttons and impulse switches?

One more note/question: I love the Berker 1930 switches. Is there even anything like that as a push-button/impulse switch?
 

pkiensch

2022-05-17 09:49:05
  • #5


My idea was to build a two-way switch circuit from a normal switch and a relay. Of course, this assumes that the relay continues to switch one of the outputs even in case of failure.
 

Benutzer200

2022-05-17 10:03:30
  • #6
Why not just install a few Shellys?
 

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