RCBOs are used to give earth leakage protection to individual circuits. They combine over current and earth leakage protection.

If one trips then you only lose that circuit, not the whole system.
So you mean individual circuit is to have dedicated power outlet in the wall, one RCBO per outlet? Maybe at home this is possible to do. But at work or another home where you can't modify the main distribution board how to be? Any idea?
I have an idea - to build Arduino controled relay - 3 relays, phase, neutral and earth. The current sensor is measuring and comparing the current - if phase and neutral are equal - then OK, but if is detected very small leakage to earth, then the microcontroller shuts off all 3 relays. The Arduino processor and the Relay it is enough fast to perform this operation faster than regular RCBO on the market?
 
So you mean individual circuit is to have dedicated power outlet in the wall, one RCBO per outlet? Maybe at home this is possible to do. But at work or another home where you can't modify the main distribution board how to be? Any idea?
I have an idea - to build Arduino controled relay - 3 relays, phase, neutral and earth. The current sensor is measuring and comparing the current - if phase and neutral are equal - then OK, but if is detected very small leakage to earth, then the microcontroller shuts off all 3 relays. The Arduino processor and the Relay it is enough fast to perform this operation faster than regular RCBO on the market?

You're still missing the point that the other device has already started the tripping process.
 
Ive just noticed the OP is in France.... so not sure of how their regs demand when and where to have rcd protection.
 
You're still missing the point that the other device has already started the tripping process.
I understand this. In your opinion, it's impossible to do what I described above?
 
I understand this. In your opinion, it's impossible to do what I described above?

I wouldn't say impossible, but I think it would be very difficult to get reliable and repeatable results.
 
I think there is a company called Usain who make record breaking fast devices.
You think? Well, if you find the contacts of this company, please post here to help the community
 
Think about it.
Thanks for suggesting a ''nice company who makes super fast breaking devices'', but I think about useful information that I got from another members. And you still think that there somewhere is this nice company or you can share with us more information about it?
 
I don't think that the users who are encountering the same problem as me will be happy to scroll down and read a lot of posts with sarcasm and banter in this thread or maybe I'm wrong... The sarcasm doesn't help to solve the problem. Useless posts are just a waste of time. Sorry for the electricians who likes to laugh 😂
 
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I apologise for side tracking the thread with a touch of humour, I thought it would attract nothing more than a laugh. Even my girlfriend who has zero interest in sport would have understood the reference to Usain.
 
I apologise for side tracking the thread with a touch of humour, I thought it would attract nothing more than a laugh. Even my girlfriend who has zero interest in sport would have understood the reference to Usain.
Thanks for your humour. I knew it.
 
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If you're a qualified, trainee, or retired electrician - Which country is it that your work will be / is / was aimed at?
France
What type of forum member are you?
DIY or Homeowner (Perhaps seeking pro advice, or an electrician)

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The fastest RCBO in the world
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DIY Electrical Advice
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