How to make remote control machines in the shield?

Nikolai asks:

Hello. I came across a problem of this order: At home, you need to be able to turn off the machines remotely. And not all. I'm interested in turning off all electricity except turning off the refrigerator. In the shield on the landing, there are three 16A 16A and 23A machines ... As I understand it, 23 amperes goes to the kitchen stove and you can power them with a refrigerator and then do not touch one machine.

And then the main question is, with what device can I turn off the current from two other machines in an apartment, so that only I have access to disconnect / turn on.

So that if I turned off the light, no one could turn it on except me? Maybe you can bring some kind of relay with a remote control into the apartment from the machines? or some kind of digital machine with a code? What can you advise?

The answer to the question:

Hello! Not 23, but 25 maybe? Anyway. No, you cannot use a stove with a refrigerator. According to SP 256.1325800.2016 p. 10.2 (the stove must be connected to a separate group line). But this is your business and your decision.

Do you know that a circuit breaker is not a light switch in a toilet and you cannot pull it back and forth since it is not designed for such a job? Why do you need this? To when you go to work to de-energize the entire apartment, except for the refrigerator?

This is called non-disconnect lines, read more in the article -https://my.electricianexp.com/en/dlya-chego-nuzhny-neotklyuchaemye-linii-v-shhite.html

Toward the end there is a scheme for remotely disconnecting disconnected lines using a contactor and a Wi-Fi sonoff relay, you can use a radio relay instead, the circuit will be the same.

In general, there are drives for remote control of machines, but they are more likely to turn on the load if it is knocked out.

Ask your question Answer the question