It is best to install the product after the electric meter, but in front of the machine.
To your attention there are 4 typical schemes for connecting an RCD in a single-phase network.
Connection of one common RCBO:
Installation diagram of several residual current devices for each group:
Connection of several residual current devices together with the input RCBO:
Installation in a two-wire network (without grounding):
Please note that you need to connect the device from above, the last picture is provided only for clarity, so that you understand how an RCD is mounted in a network without a grounding conductor. Also pay attention to the fact that each of the options has the following sequence of connecting the elements: input automaton - counter - RCD. Such a scheme
RCD connections protects your wiring as much as possible from all types of threats.I also wanted to provide you with a couple of recommendations for drawing up this scheme:
- If the wiring in a private house or apartment will include more than one powerful electrical appliance, then it is better to install a separate residual current device for each group of conductors. This option will allow you to control each device separately and, in turn, in case of malfunctions, turn off the electricity not in the entire power grid, but only in a certain place.
- If the power grid is simple, without powerful household appliances, then it is better to use installation of a difavtomat. This device simultaneously protects the network not only from leakage currents, but also from short-circuit along with overloads (AB functions).
The video below illustrates the provided installation options for the residual current circuit breaker, and also explains where each of the connection methods is rational:
That's all that I wanted to tell about the RCD connection schemes in a single-phase network with grounding and without the so-called "ground". We hope that these projects were useful and understandable for you!
Also read:
- How to make grounding in a private house
- How to connect difavtomat
Hello. Tell me, on the 1st circuit, "zero" is connected to the RCD (from below, that is, from the "OUTPUT"?) From the account
chica. AND ON THE OTHER DIAGRAMS, "ABOVE" to the "INPUT" UZO. Is that IMMEDIATE ??
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Good day, tell me. there is an RCD of 10 mA for light and 30 mA for sockets. for some reason, when a relatively powerful load is switched on abruptly (a drill, a grinder (600 W, or a bath with a 1 kW hydromassage) knocks out Ouzo by 10MA, which is standing on the light. Does not knock out sockets. If, after knocking out the RCD, return it to its place, then everything continues to work normally. What could be the reason?? RCDs are in parallel. Maybe you need to replace the RCD with a higher current ??
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Good day! On the occasion of the expiration of the electricity meter, a replacement was made, immediately after the replacement, the ouzo was cut out, the electrician connected in the same way as the previous one, he twisted, twisted, tested, it did not help, as a result, due to the shortening of the wire, he put the first machine upside down, (in the photo can be seen) it was slightly burnt, cleaned it, then changed it to a new one and set it correctly, but the ouzo does not work (((((disabled ((((counter really accepted.
So what to do? Why doesn't he hold ouzo? Electrician tszh.
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What do you think the electrician from the housing department will change the wires? What were the wires and connected. I changed the counter, the machine and that's it, goodbye.
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