[Solved] Selecting the Right Fuses for Air Conditioning Connection and Electrical Safety

Hello. I would like to know what fuses to secure the connection of the air conditioning to electricity.
At present, the air-conditioning was connected to the electricity by a simple plug (air-conditioning, wall-mounted, air-conditioner, but air-conditioning, together with the outdoor unit).
I did so in order to turn off the air conditioning from the socket in the event of a long absence (especially before storms).

Currently, I would like to connect the air conditioning also to the socket, but on the way to the device itself, secure it with a fuse / fuses - i.e. a small fuse box. I can't connect the air conditioning directly to the fuse box - technically I don't have that option.
I'm not an expert in this field, but I like to play with the flow and so far I haven't burned anything
In the event of overvoltage, voltage surges, I would like to protect the air conditioning device against failure (e.g. when one of the devices connected to the sockets in the room short-circuits - I would not want the AC to suffer from this).

And now a question for you - what fuses to use (type and power)? I will rather be able to connect it (I think so).

My air conditioning is:



Any advice?
Ps. I don't want an answer like:
don't do it because you will break it or call an electrician
I am not describing everything on the forum here in order to delegate the work to someone else.
I want to do it myself at my own risk.

piszmaile wrote:

I do not know the power of the outdoor unit at the moment (suspended quite high)

So what do you expect? fortune-teller Maciej invites you

I added pictures of the outdoor and indoor unit - all given

Your device has all the security features inside one. Your task is to insert a fuse that protects the electric wire that powers the device.

@ p.obelix
From what you wrote, I understand that:
the air conditioning will not burn or damage because it has all the protection inside the outdoor unit.
But it can burn or damage my air conditioning cable ...

I am not an expert, but I know that even the security features inside the air conditioning system may hit the trail one day - no matter what they are .... everything will break down one day. And then I will have to replace, repair the air conditioning unit - disassemble and replace, etc., and I want to avoid this.
Therefore, I would like to additionally secure the air conditioning - from what I read on other pages, they wrote to connect the air conditioning separately to the fuse box - for example because of the power consumption of the air conditioning (read the air conditioning can be damaged and the air conditioning can damage other devices). Anyway, for my peace of mind, I want to protect the air conditioning with an additional fuse.

In the air-conditioning, the electric cable supplies the outdoor and indoor unit - the power goes through one cable to two units (the first to the outdoor unit, where the power goes to the indoor unit. power for fuses.

After all, it is clearly written 6.5 A maximum current in the heating option. You run a new circuit with a 2.5 mm2 cable to the switchgear and protect it with a B10 fuse. I do not understand what you want to defend the climate against. What threats do you see. Because following your train of thought, you would have to additionally secure a refrigerator, dishwasher, washing machine, computer.

I mean, do I protect only phase (L), neutral (N) or also protective (PE)?

piszmaile wrote:

I mean, do I protect only phase (L), neutral (N) or also protective (PE)?

Buddy, with such questions, leave it and ask a kumaty electrician to do all this "work", because you will only ask yourself trouble.

@ slavy2

read the final sentence of my first post - if you don't want to help, better don't write. Because this is how you only make worthless posts

piszmaile wrote:

I mean, do I protect only phase (L), neutral (N) or also protective (PE)?

No fuses are used on N and PE.

piszmaile wrote:

what fuses to use (type and power)? I will rather be able to connect it (I think so).

One thing is true here, it seems to you :-(

You can and should help, but in the absence of basic basics, it is only to the detriment of the questioner

why did I ask for N and PE?

This is why:

The question is what network does a colleague have in the cottage?
TN-C TN-CS TN-S or some other one is for starters

I do not know the types of networks - if I did, it would not be this topic.
In my opinion, it is a regular network in a block of flats. I can take a picture of the fuses (box) but I do not know if it will do anything.
I want to have additional protection because recently there was a problem with the voltage in the whole block and in my apartment all the bulbs were flashing - it was not the case of only one apartment, but all in the block. On the differential in my flat there was a puffing noise when the light bulbs "flashed". There were even moments of no tension for a second. The problem was fixed, but the voltage spikes were in the entire power supply in the apartment, but they were not visible, for example, on the computer or TV.

I know that my fuse box should "save" the devices a bit, but for the sake of peace, I would like to have a similar solution just against air conditioning

No fuse or differential will protect the devices against surges or voltage drops. Read about overvoltage, undervoltage and overvoltage protections. If there is no difference in your apartment, it means that 99% of the installation is not adapted to it and under no circumstances should you put it in.

My friend writing emails What punching you write about, so far you have not stated anything what kind of network you have in the apartment, how will you connect the protective wire from the air conditioner? Playing with 230V voltage is a serious matter and in the event of a careless approach to the subject, it can have dire consequences, and this is not the point.

so like this:

I had air conditioning connected to the electricity using a cable terminated with a plug (the one for a socket where I could turn on 0/1).
In addition, during a storm, I mechanically disconnected the plug from the socket (total cut-off of all cables from the air conditioning). However, I would not like to continue to play with the AC to turn it off, but to simplify it all. That's why I wanted to use fuses in front of the air conditioning - switch off the fuses instead of removing the plug from the socket. And that's what I mean.

That is why I asked about the number of fuses on the cables because I do not know if securing the voltage cable with a fuse is enough or not. In the event of a failure of any of the equipment connected to the sockets in the apartment, the electric impulse will not go to the air conditioning through other cables? (N and PE?), Because only L.

I don't want statements like this, don't do it just to help you secure it YOURSELF.

If you want to disconnect the device from the power supply, the fuse is not suitable, only the FR two-way circuit breaker.

two-track, so I understand that we connect L and N (PE) to it goes normally right?
Are there any powers of such switches? are such switches in one standard?

piszmaile wrote:

two-track, so I understand that we connect L and N (PE) to it goes normally right?
Are there any powers of such switches? are such switches in one standard?

Ad.1. Yes.
Ad.2. Yes, TH35.

@ ad.2 - what power do I need to buy such a switch? because this TH35 is a kind of switch mounting

Not the power, but what current the FR switch should be. TH35 is a kind of mounting rail. The second case is how to connect the air conditioner rigidly to the installation, what is the producer / guarantor? I mean, since the manufacturer used a plug-socket connection, he had some reasons for it, but you change it and I understand that you are aware of these changes? You are interfering with the device, because removing the plug and connecting it directly to the installation changes the type of connection.

The manufacturer recommends connecting directly to the board, you can see that the installers did not want to put the cable to the board.

Air-conditioning fitters asked where to connect the air conditioning and the first thing that came to my mind was the socket that was closest to the installation site, without unnecessary drilling, reworking, etc. As I said, they did so. The climate is no longer under warranty, so it doesn't change anything anyway.
Will you tell me what specific model and type of switch should be? because in the end I would like to put it all together

In the catalog, this 09 unit, i.e. 2.5 kW, should have 3x1.5 power cables and 16A type C protection