Connecting 3-Phase RCD: L1 L2 L3 PEN & L1 L2 L3 PN Wiring Diagrams (with Diagram Link)

Question

Hello.
I am looking for differential connection diagrams and what about other answers.
So my question is: how to connect a 3-phase differential when we have L1 L2 L3 PEN available, and how to connect when we have L1 L2 L3 PN?
Below I am attaching the diagram that I found.
Is it correct?

.Jack · Accepted Answer

The residual current circuit breaker is always connected in the same way, regardless of the electrical system layout. Of course, except for TN-C - the installation of an RCD is not recommended here. In the TN system, a neutral and a protective conductor should be separated. And it is in this excretion the whole pic. Nothing more. The PE protective conductor and the PEN protective neutral conductor must not be broken.

elpapiotr · Accepted Answer

And here is the dog buried. That's what the busbars, distribution blocks, etc. are for. Don't listen to everyone because they don't know.

elpapiotr · Answer

Rubberize that yellow line and you already have a properly connected differential? What else do you want

sjbar · Answer

In my opinion, this yellow wire is PE and it is necessary for the proper functioning of the differential.

pol102 · Answer

Maybe a colleague will learn the principle of operation of the RCD!

elpapiotr · Answer

But the question was clear - How to connect a residual current circuit breaker? so what is the problem ?

jann111 · Answer

Where should it start?

fighter · Answer

Once mixoni's colleague is familiar with TT and TN network types, he should be able to deduce and draw the RCD wiring diagram himself.

Soon we will be writing how to screw the fuse into the socket, whether to turn left or right.

mixonni · Answer

It is about the PE conductor, I have already turned, because everyone says differently, do we put the differential together with N or directly on the receiver? And how do we break it down in the case of PEN?

mikolaj. · Answer

Buddy, the whole essence of the RCD is to turn off when the current flows from L to PE instead of L to N, PE is not connected to the differential, PEN is divided into PE and N conductors BEFORE the differential, looking from the supply network, Distribution point it is grounded.

haneb · Answer

The PE is earthed and not the split point.

elpapiotr · Answer

Next! Prove it! On the tenth floor too ... is it grounded?

mixonni · Answer

So the diagram I have attached (except the yellow line) is fine and we put PE from the strip to the receiver? and do we ground the separation point in the PEN situation?

pol102 · Answer

There is no such obligation.

bartekfigura · Answer

PE and PEN are earthed in places where it is possible. But there is no obligation to ground the split point. How do you ground a split point on the 20th floor? Only for a flower pot, I guess (joke). That is why you do not ground the split point, but you need to ground the PE conductor and the PEN conductor. PEN is most often grounded in the junction. and PE runs from the housing switchboard to GSW. (Main equalizer rail).

kkas12 · Answer

No buddy, not because there is no obligation to ground the PEN partition point, but because this point can be located in various places and the PE conductor breakage can introduce a real risk of electric shock.
Therefore, the PE bus must be earthed.

The grounding of the PEN in the joint is irrelevant to the contractor.

Anonymous · Answer

How many times, 20x too little and 100x enough? Why is the PEN grounded? Repeatedly? To prevent PEN failures on a specific section of the network. Failures of the wide distribution network are analyzed and the number of earth electrodes is determined on this basis. It is not at all as many times as possible. In the case of a ground cable, the PEN along its section is never earthed once. Why - because PEN is nothing but grounding. (not to be confused with an earth electrode). Earthing provided by Zakład Energetyczny. The Power Plant is responsible for the fact that PEN is PEN = grounding. It is responsible for ensuring this through an appropriate number of earth electrodes.

Akrzy74 · Answer

A friend deigns to joke! Please read current topics.

Mikhaił · Answer

Hello, I will stick to the topic ... Today I encountered something like this, PE is plugged in instead of N, is it correctly connected? The RCD protects the winch, there is no neutral wire.

Brivido · Answer

If it is indeed PE then it needs to be disconnected from the RCD and joined together.

Mikhaił · Answer

Ok, if the PE is only connected to the rail, then the residual current circuit breaker will still fulfill its function?

kkas12 · Answer

The absence of a neutral wire is unacceptable as it makes it impossible to perform the test in this apparatus.
This switch should be replaced with one that has the test circuit connected between the two phases.
Then everything will be ok.

Connecting 3-Phase RCD: L1 L2 L3 PEN & L1 L2 L3 PN Wiring Diagrams (with Diagram Link)

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