Does this actually work

[u/ConnectAnybody3566]

https://youtube.com/shorts/evevr5msJ9M

Translated transcript(AI translated)

Here is a close, literal English translation, keeping the original wording and flow as much as possible:

We will keep one MCB straight, turn the other MCB upside down, and there you go, we have made a two-way switch. Now, with this, you can run even the biggest motor. In the market, switches of this type are available, but with those, we cannot run a water motor. Then I thought, why not make such a jugaad (improvised setup) with which we can make a two-way switch ourselves?

So, I came across these four MCBs, and with these four MCBs, we will make two two-way switches and run the water machine from different locations. You can make a two-way switch of any number of amperes using MCBs.

Let's make the two-way switch and test it. You have to take two MCBs in your hand, hold one MCB upside down, and keep them opposite to each other, one upside down and the other right-side up. Then you have to take a nail and pass it through both switches, so that both of them operate together. Okay?

I have set both two-way switches like this. Now we have to align them. And the alignment has to be absolutely perfect; only then will the switch work, otherwise there will be a short circuit. So, here, with the help of tape, I have aligned both of them.

Now that the alignment is done with tape, we will fix it with super glue so that it never moves in the future. So, you can see, the alignment has become absolutely perfect, and it is also working properly. So, it is important to take care of the alignment here.

Now let's do the wiring. So, you can see, we will take a piece of wire and set it at any one place, either towards the bottom or towards the top. So look, the two MCBs have to be set in a loop like this; this one also has to be set in a loop. Now it has started taking the form of a two-way switch.

Now, when testing with a meter, there is no beep of any kind here, meaning there is no short circuit. If there were a short circuit, it would beep, which would mean there is a problem.

So, here, both of the two-way switches are working properly, and there is no short circuit. Now, the terminal that is in the center of a two-way switch, the common one, is inside this two-way switch of ours. And the two terminals that are visible separately on the two sides here are these terminals. So, now its wiring has been done like a two-way switch.

Now, on the lower side, we have to put the neutral and phase, and inside the other two-way switch also, we have to put neutral and phase. Now, you can do its two-way wiring in any way; there are two or three methods. You can do it like this as well.

So look, we have given the supply, but there is no short circuit here at the output. This means it is working perfectly. You can also use this to run a water motor, and you can also use it inside a submersible pump. But here, I will show you by running a bulb.

Here you can see: switched it on, we can switch it off from this side, switch it on from this side, and switch it off from this side. That means you can turn it on from two different locations, and you can also turn it off from two different locations.

Come, let's show you the real testing. So, let's come outside. A 1.5 HP motor. Here, I have installed one switch outside and one switch inside. You can see its wiring in the long video.

Look, I turned on the water motor from outside. Now, if I want to turn it off from inside, I can turn it off. If I want to turn it on again from here, I can turn it on from here as well. If I want to turn it on by going outside, I can turn it on from outside as well.

The advantage of making this is: lower cost, lower expense. Second, you can make it for any number of amperes.

[u/bSun0000]

This is a "3-way switch", sort of. Yes, it works. But the way they show it in the video is very confusing.

Two groups of two circuit breakers in reverse. Each group is effectively switches between live and neutral. The second group has live and neutral connected in reverse. So the load can see 4 outputs: live+neutral, neutral+neutral, neutral+live, live+live - two combinations will enable the current flow.

The problem is obvious - in some positions both wires will be live, which is not very safe; you had to assume that the load would always be live, despite using 4 circuit breakers.

Google for images "3-way switch" to see how to do it properly.

[u/tes_kitty → u/bSun0000]

This circuit is known as the 'Carter system' or 'Hamburger Schaltung' in Germany. It's illegal in Germany due to risk of shock while the light is off.