Connecting a light switch with one key. DIY switch installation How to install a wall switch

The simplest device for directly turning on the light in a room is a single-button switch. Its installation will not be difficult for a technically savvy person, if you follow the recommendations below.

To designate the planned channels for wiring, you need to know the principle of mounting the switch. The scheme of its connection is not particularly difficult. The first and foremost rule: a single-gang switch must interrupt the phase wire (usually brown or white color). This is done for safety reasons, so that once again there is no electric shock.

Usually, grounding is not used for ceiling lighting, but the ground wire is indicated on the diagram. The fact is that according to the rules of electrical safety, this type of wiring is needed for wet rooms, but apartments are not. However, it will not be superfluous to use a three-core cable with a ground wire for the installation of lighting in dry rooms.

Having studied the installation diagram, we draw the cable laying lines of the most convenient way and start getting ready to work.

Step-by-step instructions for connecting a single-gang switch

Consider first the case with cables hidden in the wall without grounding. It is necessary to remember the main safety rule when installing any type of electrical wiring - all work is carried out with the voltage turned off. That is, when starting to act, turn off the machine in the shield in order to save own life and health.

Necessary tools and materials

It is clear that first of all you need to stock up on a cable. Its required length can be determined by measuring the drawn lines of electrical wiring with a tape measure. For lighting, a wire with a cross section of 1.5 mm 2 is used. In addition to the cable, you need to prepare:

• switch;
• lamp;
• electrical tape;
• standard glass (socket box) for a device built into the wall.

From the tools you will need the following:

• perforator with a channel blade;
• screwdrivers flat and Phillips;
• tester-probe;
• pliers with insulated handles for safety;
• knife;
• crown for concrete with a diameter of a glass (6.8 cm);
• spatula and putty.

Preparatory work

Suppose there are no electrical wires for lighting the room. First you need to decide where you can pick them up. It is enough to find an electrical box upstairs under the ceiling, in which the apartment's cabling is hidden. Usually it is closed with a round plastic cover, the latter can be easily removed if you pry it off with a screwdriver.

If the house is old enough, the junction box will most likely contain strands of aluminum wires wrapped in black cloth tape.

Next, you need to determine the position of the future switch and find the center of the ceiling of the room. The luminaire will be placed at the last specified point. In general, if there are no appropriate cables in the ceiling, they must be run. To do this, you need to find the wires coming from the shield in the entrance in the electrical box.

To find power line with a phase coming from the general network of the house, you need to use the help of a partner. The latter should go out into the entrance and turn off in turn each of the machines that feed the electrical wiring of the apartment. At this time, the second person determines with a probe whether the electricity online. When you touch the tip of a tester screwdriver to a bare wire with brown insulation, the indicator light should disappear. Usually a thick cable comes out of the entrance, and you need to start checking from it.

The installation location of the switch is selected based on the convenience of pressing its key. That is, it is enough to choose a small height from 1 to 1.5 m from the floor and retreat from the door jamb some small distance (from 1 to 40 cm). The middle of the room can be determined using a tape measure, measuring the length and width of the room and dividing them in half. When the indicated places are determined, you need to draw an imaginary line for laying the cable on the wall and ceiling with a pencil.

Sequence of cabling and connecting devices

We will make a channel for the cable with a puncher if the wiring is hidden. If scheduled outdoor network, then this power tool will not be needed, but plastic cable channels will be needed.

1. We begin to punch channels for cables with a puncher, focusing on the drawn lines . To do this, we fill a special blade into the puncher and turn on the chiseling mode. Carefully go through the entire required length. The depth of the channel should be such that the cable then drowns completely, and there is still 2 - 3 mm left for putty (sealing the channel).
   

   With the help of a spatula inserted into the puncher, straight recesses (strobes) are made in the wall strictly along the marked cable installation lines

2. We lay the cables according to the scheme. We bring two wires to the switch from the box. One of the cores - phase, brown or white - will go to the switch, the second is not needed. We bring another similar cable from the box to the lamp, here we use only “zero”. Finally, we remove another cable with a phase wire from the chandelier. He must come to the switch.

   A cable is laid in the strobes made and fastened at several points with plastic clips

3. We make a recess for the switch using a concrete crown. Here the hammer must be switched to the mode of simultaneous drilling and chiselling.

   Necessary seat drilled with a hole saw of the appropriate diameter

4. We close the channels with putty using a spatula. This process is not difficult in itself. It can be done even without any experience finishing works. The main thing is accuracy. At the same time, we insert the glass and also grease the place of its fastening with putty. In this case, the protruding piece of cable must be inserted into a special hole on the glass.

   All channels made in the wall, including the place for the installation of the socket box, are covered with putty, and the cable under the switch is led out through the socket box

5. We open the packaging of the new switch. Initially, pry off the key with a slotted screwdriver and remove it. Remove the switch cover.

   After removing the cladding panel, access to the switch mechanism will appear.

6. We expose the ends of the wires in the socket of the socket. A single-gang switch has two inputs. We insert the stripped segments of the phase lines into them.

   When connecting the switch, the order of the wires does not matter

7. Install the switch itself. After tightening the bolts on the wire contacts, we insert the device into the glass, deepening flush with the wall, and tighten the side screws with a screwdriver. When tightening the latter, the antennae extend, which fix the switch in the glass.

   The switch mechanism is attached to the socket with two bolts along the edges of the metal support

8. We assemble the switch: we fix the facing panel and insert the key into place with our fingers. The process is over.

   A facing panel is put on the installed mechanism, and then the switch key is inserted

There are also types of switches that do not have bolts on the contacts. In this case, the stripped ends of the wires simply need to be inserted into the appropriate inputs, and the wires themselves will be fixed by an automatic clamp. If you need to remove the ends back, you need to stick the tip of a slotted screwdriver into a special groove and wring out the mechanism.

If, when laying the cable in the channel made, it is not fixed, then special dowels must be purchased. They look like this: at one end there is a ring for the cable, at the other - a regular rod. Next, you need to drill several holes along the channel with a puncher and insert the specified dowels, fixing the cable with their help.

To fix the cable in the strobe, you can use dowels with a special clip

With open wiring, everything is much easier. A puncher is not needed. It is enough to lay the cable along the outer part of the wall and attach it with any improvised elements, for example, with the same dowels. But usually in this case, decorative boxes for electrical wiring are used. The latter are simply glued to the wall with double tape or mounted on self-tapping screws, and wires are laid in them, opening the lid. The rest of the process is exactly the same as described above.

Video: connecting a single-gang switch with indication

How to connect a switch from an outlet

In this case, you can save on electrical wires. The connection is made in the usual manner according to the scenario already described. However, the wires are not powered in the electrical box, but in the socket.

Video: connecting the switch from the outlet

How to connect three sockets and one switch from the box

Let's consider one more case. Suppose we need to power three sockets and one switch from the electrical junction box. Then it's best to do so.

The lighting cable is sometimes taken out of the box right away. Then two separate lines are obtained - one for sockets, the second for lighting. The switch is connected according to the original scheme described at the very beginning of the article.

Connecting a single-gang switch to two light bulbs

It is also possible to arrange a single-gang switch with two lamps. In this case, the lighting nodes are simply connected in parallel.

For example, the phase wire coming from the switch can be brought into a separate box. Inside its case, insert the end of this wire into a terminal block or other device for connecting wiring. And on the other side of such a contact group, two wires must be connected at the same time. These two phases should power both lamps.

To "bifurcate" the wires, you can use the Wago universal terminal block: an incoming cable is inserted into one connector, and two outgoing cables into the remaining ones; such a connection must be made on each of the three cores

Another option: both wires from lighting fixtures should be inserted into one switch output. The disadvantage is that one of the ends during operation may fall out of contact.

Video: how to connect a single-gang and two-gang switch

Usually a single-gang switch lasts a long time. If the key stops “clicking off”, then it is better to replace the assembly completely. Modern switches are difficult to repair. Most often, such a malfunction occurs: one of the wires falls out of contact. Then you need to pry off the key with a screwdriver, loosen the bolts that have opened, pull out the base, insert the contact into place and fix it. However, breakdowns are usually rare if equipment from well-known manufacturers is used.

This article is about how to install light switch. Generally speaking, light switches are used to control electrical lighting in residential and commercial buildings. In most of these cases, the light switches are mounted on the wall at a specific location in the room, the height at which they are mounted, or the shape of the switches is different depending on the desire.

Light switch - has many types: single and multiple, internal and external. The installation of the light switch should be carried out by a person with experience in working with electricity.

To install the switch, you must do the following ...

How to install a light switch

The first thing you need to do is to turn off the breaker. Some people believe that it is safe to turn off only the meter on which you install the switch, but we strongly recommend that you keep the main power switch turned off.

Turn off the machine

Then, use a voltage tester on each wire to make sure there is no electricity and everything is safe. We emphasize that it is better to check it several times before touching electrical wires.

Switch connection wiring

The next step of the project is to remove paint, residue or dirt from the box using pliers. Make sure that the area under the switch is free of debris and excess materials. This operation is important, especially if you are dealing with a newly built house or a repainted room.

However, even if you are replacing an old switch, you need to make sure that the new electric light switch will be installed and aligned properly.

After you have bought a light switch, you must open it using a screwdriver. This operation is important because you will connect electric wires with the inside of the switch.

The next step of the project, after we opened the light switch, we need to start connecting the switch. Use pliers to cut off excess wires about 15 cm from the wall.

This length should be enough to connect the switch, and it is more convenient to work. Remember that you should not leave long wires, in the future they may not get into the switch box.

After we've made sure the wires are cut to the proper length, we move on to the next step. Use pliers to remove approximately 2.5 cm of wire insulation. Remember, in order to avoid further touching the bare wire, do not chamfer more than the specified length.

How to connect a light switch

Use pliers to bend the end of the wires into an L-shape (depending on attachment to the switch terminals).

Do not forget about the correct connection of wires. It is customary to use the following wire colors:

• white or brown - phase;
• blue or black - zero;
• yellow, green, yellow-green - grounding;

And general rule: the lightest wire is the phase (white, white-brown, brown).

Use a screwdriver to firmly tighten the screws holding the wires in the switch.

After you have finished connecting the light switch , it is better to check again if all the wires are in place and firmly fixed. At this stage, you should have the following picture:

After you connect all the wires to the switch and check their reliability, carefully insert the wires into the switch box. Insert the switch there and if everything falls into place, fix it with screws.

To align the light switch, you can use laser level, but you can use a stationary level. This will only make the process a little more difficult, especially for beginners. Once you have leveled the switch, finally tighten the screws.

The next step after installing the light switch in the box is to install the switch buttons. It is enough to attach the button and press a little so that it sits in its grooves.

This operation is not difficult, and besides, it represents one of the final steps of the process.

If you have finished connecting and installing the switch, go to the switch and turn on the general light.

The last step, turn on the light using the new mounted switch lights to see if the hard work paid off. If the light turns on without interference, it means that you did everything right.

Light switch connection diagrams

Thank you for reading our article on , how to connect and install a light switch, we recommend that you read our other articles.

Connecting a single-key light switch is a task that sometimes faces a home electrician. Most lighting fixtures are controlled by these switches. This article discusses in detail the sequence of steps for connecting a single-gang switch and installing it at home without outside help.

Preparatory work before installing the circuit breaker

To connect the light switch, preliminary preparations must be made. Installation is carried out from the nearest junction box, to which power is supplied - network cables supply of electric current.

Power to the switch and lights is supplied from the junction box

Three lines are laid - one from the junction box to the lamp, the other - from it to the switch. The third - comes from the shield. As a rule, two- or three-core wires of the installation type are used, that is, with a copper (or aluminum) core made of solid metal. In everyday life, such a wire is called hard, in contrast to soft, in which pigtails of small hair conductors are under the insulation. On the marking, a rigid cable is indicated by the letter "U". The cross-sectional area of ​​the conductor is selected in accordance with the load. For an ordinary lamp or chandelier, in which up to 3 lamps are combined, a wire with a cross-sectional area of ​​​​1.5 mm 2 is sufficient.

If energy-saving or LED bulbs are used, the conductor cross-section can be reduced to 0.75 mm 2 in order to save money.

The type of wiring installation can be of two types - internal (hidden) and external. Hidden wiring is installed in the thickness of the wall or ceiling. The outer one runs along their surface, the cable is packed in a corrugation or cable channel, which are mounted on the wall with special brackets or other fastening material.

After the wires are wired, you can proceed to install the switch.

Connection diagram of a single-gang switch

The principle of operation of the switch is based on breaking the power supply circuit of a light bulb or any other device. Switching the toggle switch activates the contact pair, which disconnects the power wire from the current consumer.

The switch usually opens the phase conductor

When assembling the circuit, you should pay attention to the reliability of the contacts. If the wires have large gaps, then at one point a so-called electric arc may occur, the temperature of which is sufficient to melt and ignite the insulation. This can lead to smoke in the living space and even a fire. In order to avoid such phenomena, the following connection methods are used:

The twisting of copper and aluminum wires is also possible. But if the connection is overloaded, aluminum can melt because it has a lower melting point than copper. The contact will be interrupted.

Tools and materials for connection

To connect, you will need the following tools:

1. Electrical screwdriver.
2. Household voltage indicator.
3. Pliers.

From the materials at hand should be:

1. Wires of the required length.
2. Terminal blocks or electrical tape.
3. Lamp holder (and the lamp itself).

Pay attention to our article, which describes in detail how to choose the right switches:.

Photo gallery: materials for mounting the switch

The length of the cable is pre-measured with a tape measure at the work site
Depending on the type of wiring, external or recessed (internal) junction boxes must be used.
The cartridge is attached to the ceiling with self-tapping screws
The base of the "correct" switch can be ceramic or made of high-quality plastic

Step-by-step instructions for connecting a single-gang switch

If all the tools and materials are ready, you can start assembling. Conventionally, the procedure can be divided into two steps:

• connecting switch contacts and light bulbs;
• switching cables inside the junction box.

Before that, all wires are fixed in their designated places in the cable channels or corrugation. The junction box and switch box are firmly installed in (or on) the wall. There is no procedure of great importance, but experienced electricians always start connecting from the periphery - a switch and a light bulb, and end up connecting the wires in the box.

Connecting the switch and lamp

There are various models of switches, but in the bulk they are mounted in the socket box using a spacer mechanism mounted on the base. Before fixing the base, you need to connect the wires to it. To do this, the clamp screws are loosened, the wires are inserted into the sockets, and the screws are clamped again. It is important not to overtighten the threaded fastener - it must be tightened so as not to damage the screw slots.

If there is no socket box and the switch is mounted outside, the base is screwed to the wall surface with two screws.

The outdoor switch is mounted directly on the wall surface.

At this stage, it must be properly positioned. It is customary to install the switch so that turning off is done by pressing the button down, and turning on - up. This is done for security reasons. If suddenly something accidentally falls on the switch from above, the mechanism will work to break the circuit and turn off.

After screwing the screws into the wall and fixing the base, the installation of the switch can be considered complete. It remains only to insert the key into place, but this can be done at the very end, after checking the operation of the entire circuit.

Switching cables in the junction box

Before starting the connection of conductors, it is necessary to de-energize the line supplying electric current to the junction box. To do this, turn off the plugs or the circuit breaker on the meter shield.

It is very convenient to carry out switching by the color of the cores. Using a voltage indicator, you need to determine which of the cores is the phase, and which is zero. Touching the phase wire will cause the diode on the probe to glow.

The indicator is activated by placing a finger on the red cap.

Usually, the "phase" is connected to the red core of the wire, "zero" - to blue, "ground" - to white.

If the wiring in the house is made with three-core cables, all the white conductors of the "earth" are interconnected.

Video: single-key switch connection diagram

You may also find the material with connection instructions useful. pass-through switch: .

How to connect 3 sockets and 1 switch from one junction box

Sometimes you need to connect an additional one or more outlets to the existing wiring. This can easily be done by running another cable into the junction box.

It should be noted that for sockets it is customary to use connecting wires with larger area sections. This is due to the fact that various Appliances. It can be a kettle or, for example, a vacuum cleaner. Their power consumption is higher than that of a simple light bulb, and therefore thin wires can heat up, which is undesirable. Therefore, sockets are connected with cables, the cross section of which starts from 2.5 mm 2.

The connection process consists in connecting the wire to the power line that came to the junction box from the shield. As with the installation of the switch, all work must be carried out only with the plugs turned off.

When switching wires using twists, it is advisable to carefully clean all contacts with a knife or a small file. Sometimes old wiring oxidizes at the junctions and the contact becomes unstable from this. When adding new wires, twisting is done with pliers.

To avoid short circuit insulation must completely exclude possible contacts of wires with different poles.

Video: connecting a one-button switch and socket

How to connect a single-gang switch to two light bulbs

If from one switch you need to turn on two light bulbs located in different places at the same time, the same connection scheme applies.

The current supply to the lamps is controlled by a single switch, but the options for connecting the lamps themselves may vary.

New cable in the box

Another cable is brought into the junction box. The ends of the cores are stripped and connected to the same terminals as the first lamp. This will take up some extra volume inside the box, but if there is enough space, then nothing bad will happen.

One way to connect two bulbs to one switch is to connect both pairs of wires to the same pins.

Cable from an existing device

From an existing lamp, a branch is mounted, which is connected to it in parallel. To do this, two additional contacts are inserted into the cartridge of the first lamp (“zero” and “phase”, red and blue) and pulled to the second lamp.

The advantage of a parallel circuit for connecting lamps is the possibility of using them in any quantity.

The choice of connection is selected depending on the situation. The second option is used more often, since there is often not enough space in the junction box to enter additional cables. In addition, in this way it is possible to connect not only two lamps, but also more of them. The main thing is to follow the principle parallel connection wires.

Do you want the lamps to turn on smoothly? See the connection diagrams for such a system in our next material:.

When installing home electrical equipment, you need to remember to comply with safety standards. Before starting work, be sure to turn off the power supply. It is better to use tools with a dielectric coating and cables of the appropriate size. Do not throw bare ends of conductors on radiators or water pipes. In addition, it is required to comply with the regulatory parameters of the connections.

A single-key switch is the simplest product designed to control home lighting.

From time to time, such products have to be repaired or replaced, so it is advisable to present a diagram of their inclusion and the principle of operation.

In our article you will find answers to your questions, a diagram and video recommendations for connecting a single-gang switch.

The switch is part of the circuit, which includes a source and consumer of electricity. In this variant, this 220 V network and lamp. To turn such a lamp on and off, there must be a disconnecting device between it and the network.

The switch, which has one key, is connected in series to the phase line of the network. In principle, it can also be included in the zero line, but this, firstly, will contradict PUE rules, and, secondly, it will be unsafe when servicing electrical devices.

The danger is that when the device is installed in the zero line, the nodes of the energy consumer will be energized even when it is in the off state. And when touching an electric device, a person may be shocked.

To connect a lighting lamp to a network using it is usually used, in which switching is performed. At the same time to her fit 6 electric lines- two are energized, two go to the lamp and two go to the switch.

How to choose

Depending on the type of wiring (or) in the house, switches of one or another type can be used. They differ in their design in terms of their installation on the wall.. In the first case, the device is installed on a wooden plate placed on the wall surface, in the second case, in a metal or plastic socket recessed into the wall.

In any case, when choosing a switch, you should pay attention to its limit characteristics. Typically, the operating voltage of a standard device is 220 V, and the operating current is -10 A.

The passport also indicates the maximum switched power (standard -2.2 kW).

At the same time, the power of the consumer, for example, lighting equipment at home, must not exceed this maximum power.

Installation and video instructions

When installing a lighting control system the greatest attention should be paid to:

• Correct connection of elements in the distribution box (block).
• Correct connection of the switch itself.

Scheme for connecting a single-key switch to a light bulb:

To fulfill the first rule, you need to do the following operations:

• Define, suitable from the network side. To do this, you can use a probe - with a neon light bulb. If you bring the probe to the phase, the neon light will start to glow. If the probe is brought to zero, then there will be no glow.
• Turn off the power at the apartment.
• Connect the phase to one of the ones going to the switch.
• Connect the second cable coming from the switch to the one that goes to the center pin of the lamp socket.
• Connect the wire coming from the external contact of the base to the network zero.

The connection of stripped ends can be carried out in various ways:

• twisting and subsequent soldering with further isolation of this place with tape or special caps;
• screw or bolt clamps;
• using terminal blocks;
• spring clamps, for example, Wago type.

The most reliable contact in this case provides the first option. Screw and bolted connections are reliable, but when they are performed, damage to the connected elements is possible. Spring clamps can be done very quickly, but over time, the springs weaken, causing sparking and burning.

To execute the second rule, you need to perform the following operations:

• Remove device key using a screwdriver with a thin sting. In this case, it should be borne in mind that modern plastic instrument cases have a very fragile structure, so care must be taken.
• Strengthen the overhead version of the device with screws on a wooden socket. Use screws to connect the conductors coming from the distribution unit to the contacts.
• At hidden wiring at first connect wires. Then install the body into the niche of the wall and fix it with special tabs by tightening the fastening screws.
• Set the key in place.

Learn from this video how to properly connect a single-gang light switch:

In the following video, we will show you how to properly install a single-gang switch:

In conclusion, it is necessary to turn it on on the shield and check the operability of the system and its adjustment.

Let's summarize. Single-gang switches are used to control the shutdown of power-consuming devices, such as lighting. Such devices are included in the phase wire in series with the lighting means..

Installation of the shutdown system for devices using electricity is carried out using a special junction box.

The device must be selected in such a way that it marginal electrical characteristics were equal or more such characteristics of current consumers.

First you need to decide on the type of wiring. There are two types of electrical wiring:

• Open - wires are laid over the wall. They can be closed with plastic cable channels or mounted on decorative rollers.
• Hidden - the cable is laid inside the wall. To do this, special channels are made in the wall, into which the wire is laid. After that, the strobes are sealed with cement mortar.

Open wiring is still used in private homes. It is especially often used by designers who create interiors in the loft or retro style. AT wooden house according to the rules fire safety electrical wiring can only be open. Overhead switch models are selected for this type of wiring, which are mounted directly on the wall, without recessing.

What are the ways of switching the wires of the switch

Internal fastenings of wires in the switch can be different. In practice, two switching options are used.

Screw type clamp

The screw type contact is clamped with a screwdriver. To do this, approximately 2 cm of the cable is pre-stripped of insulation, then the bare wires are placed under the terminal and twisted with a screwdriver. In such a contact, it is very important that there is no insulation under the terminal, even a very small amount of it can begin to melt, which is very dangerous. This switching variant is especially suitable for aluminum wires.

However, there are drawbacks here - during operation, the wires heat up, which eventually leads to deformation of the connection. The contact in this case begins to overheat and spark. This problem can be easily solved, it is enough to tighten the screw and the wires sandwiched between the two flat contact plates will snap into place, the switch will work safely, without heat and sparks.

Non-screw clamp

This option is a pressure plate contact. The switch is equipped with a special button that adjusts the position of the plate. The connection is made very quickly and easily: the cable is stripped of 1 cm of insulation, after which it is inserted into the contact hole and clamped. The design of such a terminal ensures high reliability of the resulting switching. Non-screw terminals hold the copper wiring connection well.

Screw and non-screw terminals in general provide approximately the same quality and reliability of connections. However, for installation, especially for a novice electrician, it is easier to implement the second option correctly.

General scheme for mounting a light switch: rules for switching wires

Ignoring the basic rules for installing even such a simple device like a switch, can lead to backfire. These include overheating and sparking, with possible subsequent short circuit, fire, and even the danger of electric shock.

Therefore, before installing the switch, it is necessary to understand what the main connection elements are for and how they are used:

1. Zero wire (zero). It is displayed on the lighting device.
2. A wire with a phase leading to a switch. To turn the light on and off electrical circuit must be closed within the phase core. It is important to remember that when the switch is turned to zero in the opposite direction, the device will work, but voltage will remain in the circuit. Therefore, to change a light bulb, for example, you will have to turn off the power supply in the entire room.
3. Phase assigned to the lighting device. Pressing the on/off key will close or open the circuit at the break point of the phase wire. This is the name of the section where the phase wire ends, leading to the switch, and the segment stretched to the light bulb begins.

Thus, it turns out that only one wire is connected to the switch during installation, and two to the lighting fixture.

Should be remembered important rule: all connections of conductive sections of wires should be made only in the junction box. It is highly undesirable to make them in a wall or in plastic channels, since in this case complications cannot be avoided with the identification and subsequent repair of damaged areas. If there is no junction box near the installation site of the switch, you can stretch the phase and zero from the shield.

All of these rules are related to the single-gang switch. They can be extended to multi-key devices with the difference that a fragment of a phase wire from lighting device which the key controls. A wire with a phase, stretched from the junction box to the switch, will always be only one. This rule is also observed for multi-key switches.

The installation of the switch or its replacement can only be carried out with a fully formed electrically conductive circuit. Therefore, in order not to make a mistake when working with electrical wiring, you should know the marking and color of current-carrying wires:

• The insulation of the phase core of the wire is most often white or brown.
• Zero core insulation - blue.
• The ground wire is usually green or yellow.

The installation of the switch and further connection to the circuit is carried out according to these color prompts. Some manufacturers additionally apply special markings to the wires. Connection points in this case are denoted by the letter L and a number. So, phase input on two-gang switch will be referred to as L3. The lamp connection points are marked as L1 and L2. Each of them should be displayed on one of the lighting fixtures.

The order of connection of the overhead switch

Surface switches are not only used for wiring open type, but also where for some reason it is impossible to make a hidden connection. To carry out the installation of a single-gang switch of a complete factory assembly, you must first turn off the electricity supply in the switchboard, and then sequentially perform the following operations.

Switch disassembly

Using a slotted screwdriver, very carefully lift the switch key and remove it. After that, just as carefully, so as not to break, remove the protective decorative cover. Next, disconnect the operating device from the socket plate.

Marking the place for installation

On the base plate, holes are made at the factory for fixing the switch. They should be marked on the wall. To do this, attach the socket to the wall surface in the place where you need the switch, and mark the border of the upper edge with a pencil. Using a level, check its horizontal, otherwise it will not be possible to mount the device evenly. Then once again attach the plate to the wall and mark the attachment points through the holes.

Installing the socket plate

To mount the socket, you need to make holes in the wall. It will be possible to fix the plate immediately only if the material from which the wall is made is soft wood. Then you can simply fasten the socket with galvanized screws. But most often you first have to drill holes in the wall with a drill or puncher. Then securely fasten the plate to the wall.

Wire connection

Determine the type of contact switching and cut and clean exactly according to it electrical cable. Be sure to remove all insulation at the junction so that it does not subsequently melt and cause malfunctions in the circuit breaker. Once again check that the wires reach the terminals exactly, leaving excess is undesirable. Connect the wires to the correct pins according to the color and markings.

Circuit breaker assembly

First, make sure that all wires are connected correctly, to do this, test them with a multimeter screwdriver or other similar device. If everything is assembled correctly, install the switch device in place. Then put on the protective decorative cover and finally latch the key. Check switch operation.