ᐅ Electrical Installation – Retrofitting Switches and Push Buttons Wirelessly

Created on: 21 Jun 2020 12:47
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bauenmk2020
Hello everyone,

before questions about the electrical installation come up: we have deliberately chosen a conventional electrical system.

Now to my question:
Our electrical installation is nearly complete, and I am not sure if all my requests were implemented by the electrician as discussed. He had told me that all light switches would be installed with deep flush-mounted boxes and as push-buttons (at least those that I marked accordingly), so that I can later connect a wireless actuator behind them.

I have now taken a closer look at the switches and found the following types installed:
  • Merten MEG3115-0000 as a series switch insert (switch function: 2 circuits), rocker push-button
  • Merten MEG3116-0000 as on/off changeover switch insert (switch function: 2-way), switch
  • Merten MEG3150-0000 as push-button insert (switch function: 1-way), push-button

As you can see, several types of light switches were installed.
My basic question: Is it possible to install a wireless actuator behind each of these switches without, for example, an off switch position disabling the wireless control?
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Alessandro
6 Jul 2020 08:00
That actually doesn’t matter at all.
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Grobmutant
6 Jul 2020 08:15
What exactly is this version used for? Does it come with a remote control and allow you to operate (multiple) switches from a distance?
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Alessandro
6 Jul 2020 09:04
By the way, NP stands for "Not Potential-Free."

Potential-free means that you can work with two different voltages on the input and output sides.
With not potential-free, the input voltage equals the output voltage (in this case 230V).

Potential-free outputs are often used for inputs of a PLC, DDC, etc., meaning in applications with a controller or control device behind them.
In your case, where you only want to switch a lamp on/off, it does not matter.
Mycraft6 Jul 2020 09:12
The difference is that one is a zero-cross switch and the other is not.

A zero-cross switch is suitable for switching resistive loads without causing electrical noise, such as clicking disturbances. For switching inductive loads like coils or transformers, zero-cross switches, or zero-voltage switches, are less appropriate because they cause a high inrush current.
bauenmk20207 Jul 2020 07:51
@Alessandro
Which wireless dimmer module do I need if I want to operate several LED spotlights on a 230V line? I want to be able to dim them and control them wirelessly.
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Alessandro
7 Jul 2020 11:04
also the Eltako FD62NP-230V. You need to set the operating mode to "phase-cut." Provided you are using an EnOcean switch