How to connect Emergency circuit breakers ?

Select method

to begin with let's deal with the basic options of electrical work, becausehome wiring can be a single-phase (220 V), three-phase (380 V), with or without grounding.In addition, the product can only be installed on the opening panel in the apartment or on each separate group of wires.Depending on these conditions, Emergency circuit breakers wiring diagram may be slightly modified, and the device itself will have a different design (two-pole or four-pole).

Thus, we consider the order of each of the connection methods Emergency circuit breakers in the panel.

simplest protection

The easiest way to install - one introductory Emergency circuit breakers serving the entire apartment wiring.In this case it is necessary to buy a powerful device, calculated on the current load of all appliances in the room.The disadvantage of such a circuit connection is that if the defense work, to find the problem area is problematic becausesample could be anywhere.

Note that the ground wire is held separately by connecting to the grounding bus to which are connected all the PE-conductors from the electrical appliances.Also, an important point is to connect the neutral conductor.Zero, which is derived from the differential machine is strictly prohibited to connect with other electrical zeros.This is due to the fact that different currents will pass through all zeros, which will cause tripping apparatus.

Reliable protection

improved version of the connection Emergency circuit breakers in the house is the following scheme:

As you can see, for each group of wires installed on a separate device, which only works if a dangerous situation arises in his "plot".At the same time, the remaining articles do not react and will operate in its normal mode.The advantage of this variant of connection is that in the event of leakage, short circuit or over-voltage can immediately find the problem area and proceed to his repair.The disadvantage of this method of installation Emergency circuit breakers - higher material costs for the purchase of several vehicles.

Without grounding

Above we have provided a few examples in which the present ground contact.However, in the country and in older homes (and, consequently, with the old wiring) used two-wire network - phase and zero.

In this case, the connection Emergency circuit breakers was carried out in the following way:

If in your case, as there is no "land", be sure to perform the replacement of electrical wiring in the home to a new, more secure.

In the three-phase network

If you decide to install Emergency circuit breakers in the cottage, garage or a modern apartment which is applied to the three-phase network 380, in this case it is necessary to use a 3-phase machine.In fact, the scheme will not be different from the previous ones, if you do not take into account the fact that at the input and output of the housing must be connected by four wires.

Here we are given ways to connect existing differential machine with their own hands.The most appropriate option is the one with the ground and several separately installed devices.

recommend also view a graphic video instructions with the correct wiring:

Set product

Once you decide to connect the way you need to move to the least important stage - the installation work.In fact, installation of differential machine is nothing complicated, important to do everything correctly and according to the instructions.To readers of "electrician himself" were able to quickly and easily install Emergency circuit breakers in the panel, provide the following step by step instructions:

1. Inspect the housing for defects and mechanical damage.Any crack in the body can cause a product malfunction.
2. Turn off the electricity in the house and make sure that the voltage on the network is not available, the indicator using a screwdriver (or multimeter).For information on how to check the voltage at the wall outlet, we described in the relevant article!
3. Install Emergency circuit breakers for DIN-rail mounting, as shown in the photo.
4. Strip the insulation of connected veins, it is recommended to use a stripping tool, which does not harm the current-carrying contacts.
5. Connect the phase and neutral conductor in special connectors to the Emergency circuit breakers housing.Please note that the input wires must be attached on top.
6. Turn on the power and check the operation of the device.

That's the differential machine setup technology.We recommend using only products from reputable manufacturers: Legrand (Legrand), ABB, IEK and Dekraft (dekraft).

also recommend that you be sure to familiarize yourself with errors when connecting, that we have provided below.

Main connection errors

As we have said, if not properly connected to the network Emergency circuit breakers may have problems such as its false alarm or do a complete failure.

culprits fault can have the following connection error:

1. Neutral conductor on the output from the shell is connected to the rest of the zeros.As mentioned earlier, the passing current will trigger the unit to false alarm.
2. Introductory L and N instituted the bottom of the housing.This error occurs very often in practice, indicating negligence electrician who performed the installation.Even at the front differential drawn machine diagram according to which input is performed only from the top.
3. Zero connected to "ground".This option is sometimes used in older homes, where the two-wire network is used.The result of incorrect connection - false alarm protection.
4. N Wire wound to the appliance directly (by the protection).In this case, the operation will also take place.
5. In the scheme there are several dif machines while the appliance is connected to one phase and zero to another.Result - off one or two safety devices immediately.

clearly see mistakes you can in the video below:

That's all that I wanted to tell you how to properly install and connect Emergency circuit breakers with their own hands.
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