To increase the level of comfort when using lamps, a diagram for connecting a pass-through switch from 2 places will be useful. In practice, if necessary, a larger number of control points are used. To save time and money, work operations are performed independently. A thorough comparative analysis, taking into account the characteristics of products from different manufacturers, helps to make right choice at the time of buying. These and other practical problems will be easier to solve after studying this article.
What is a pass-through switch
A superficial study of the problem will not allow you to draw the right conclusion. To some, such devices seem unnecessary. However, similar arguments can be made against the use of remote controls. remote control, other devices to increase the level of comfort. Meanwhile, the transition switch is not only intended for convenience. What it is is shown in the following figure:
The first picture shows a typical situation. One lamp is sufficient to illuminate a flight of stairs. It is turned on from the lower platform. Having risen to the upper platform (Picture No. 2), the electrical circuit is opened. This action is performed using another switch. When moving in the opposite direction, a similar algorithm of actions is used.
It is clear that such solutions significantly increase the level of security. They are used not only on stairs, but also in long corridors. Good lighting is especially important when there are turns, furniture, and other obstacles along the route. Such equipment is necessary if there are no windows. Modern users will be reminded of the presence of devices that perform similar functions using motion sensors and sounds.
A careful comparison with a pass-through switch will reveal the following disadvantages:
- Motion sensors have a specific directional pattern, which complicates the choice suitable place to secure it.
- The sound recorder is capable of detecting extraneous noise. Sensitivity should not be reduced excessively to maintain performance.
- These devices are sensitive to voltage surges. Some false alarms occur when over-the-air (network) electromagnetic interference occurs.
- Such products are more expensive than pass-through switches.
- Due to their increased complexity, they are designed for a shorter service life.
The listed arguments are sufficient for correct conclusions. Without diminishing the importance of modern solutions, it should be noted the real advantages of cheap, reliable and durable walk-through switches. Separately, it should be noted that the ergonomic indicators of residential premises are improved with the help of these relatively simple electrical products. 
One rocker switch
Pass-through switches (1 and 2) in the lighting lamp control circuit from two places
The above diagrams explain how a switch is different from a switch. The first one breaks and connects an electrical circuit. The second one changes the path of electric current.
Design and principle of operation of a pass-through switch
Disassembled switching unit
This photo with explanations will help you study the design of pass-through switches. To connect the wires, screw terminals (1.3) are installed here. Rocker (2) complex shape installed in the recesses of the support platform (4), which ensures reliable fixation. But it remains possible to swing it using the transition element (6) installed in the cover (5). If you press on its upper part, the corresponding contacts will be closed, the current will flow along the path from the rocker arm through the clamp (2-1). After pressing down, the electrical circuit 2-3 will close.
Developers use different solutions, but the principle of operation of products of this group is as described above. The following explanations should be given for the given parts of the structure:
Features of modern walk-through switches
The central block discussed above is installed in a metal frame (6). This design uses special latches (4) for reliable fixation and speeds up installation operations. Other models use screw fastenings. Cutouts (1) in the frame make it easy to accurately position switches, sockets and other electrical devices in one unit horizontally/vertically.
When the screws (3) are tightened, special “legs” move out to the sides. They ensure that the pass-through switch is secured in the installation box. In this model, plate clamps (2) are installed, into which conductors stripped of insulation are inserted. High-quality contact is created without special tools and additional fasteners. This modification is equipped with built-in lighting. The light bulb is installed in such a way that replacement is possible without dismantling the entire mechanism. 
A conventional device (1) and an illuminated switch (2) are connected to the circuit according to the same circuit
However, the second option ensures good visibility of the device in darkened rooms. It should be noted that this solution is not compatible with all types of lamps. When turned off, a small current passes through them. This will be enough to power the LEDs. Incandescent lamps and gas-discharge devices can be connected to such circuits without restrictions.
Connecting different pass-through switches
Protected devices with sealed gaskets are installed in an open space. They perform their functions safely in pouring rain. Built-in lighting is useful in a dark corridor. Accurate specifications selected taking into account the actual conditions of future operation. However, in any case, information on how to correctly connect a pass-through switch with a certain number of keys will be useful. It is this parameter that largely determines the functionality of the switching device.
Connection diagram for single-key pass-through switch
Schematic diagram of electrical circuits
The figure shows that the wiring is made of a three-core cable. This is necessary to connect the ground (green wire) to the metal body of the lamp (3). The diagram shows the distribution cabinet (1). A three-wire circuit also goes from the box (2) to the pass-through single-key switches. There is no grounding provided here. 
Lamp control circuits from two and three places
In the second option, it is necessary to use a single-key cross switch (marked with an arrow in the figure). Please note that it has two switching groups, which are driven by one drive. Such products do not differ in appearance from standard switches, but they perform different functions. 
This designation is used to mark a cross switch on the housing.
Features of the connection diagram for a two-key pass-through switch
According to this scheme, two-key pass-through switches are used in practice
This option makes the project more complicated. It is necessary to use cables with big amount conductors. But it is precisely the connection of a pass-through double switch that allows you to organize control of several groups of lamps. Such solutions are used in large rooms to adjust the general light chandelier. 
This figure shows how to connect a double pass-through switch in combination with a single-gang switch.
Installation and connection diagram of a three-key pass-through switch
Control of three groups of luminaires 
When choosing a pass-through triple switch, the connection diagram in the manufacturer's accompanying documentation will help you install the jumpers correctly
Careful planning will prevent annoying mistakes and simplify the right choice. It is necessary to carefully determine the lighting application modes in order to accurately determine the purpose of the project. The locations of walk-through switches are established not only in accordance with current rules. The physiological characteristics of users are essential. During comparative analysis take into account appearance and functionality, prices and manufacturer warranties. A complex approach will help implement plans of any level of complexity without extra costs.
It is not difficult to obtain additional support directly on our website. Ask questions in the comments, bring own examples, report important parameters profile products.
A two-button light switch is mechanical device, designed for switching the lighting circuit, has two control keys designed to perform six operations.
1-2 operations, designed for key one:
- in the “on” position, the circuit connected to this control element is closed;
- in the “off” position it opens;
3-4 for key two:
- in the “on” position, the circuit is closed;
- in the “off” position it is open;
5-6 for simultaneous operation of two keys:
- in the “on” position, the circuits controlled by keys one and two are closed;
- in the “off” position they open.
The standard two-key light switch is designed to operate in lighting circuits with voltages up to 1000 V. It is structurally equipped with a manual, mechanical control drive.
Doesn't have:
- arc chutes;
- protection against short circuit currents;
- over currents and overloads;
- Structurally designed for small current loads (no more than 10 A).
Double switches are widely used in places where there is a need to control the lighting of two different groups from one place, using one switching mechanism.
Varieties of execution
Depending on the characteristics of the room and operating conditions, the following design modifications of switches are distinguished:
- external;
- internal;
- modular;
- waterproof.
Operating principle of a two-button light switch
The figure below shows a visual diagram describing the operating principle of a double switch. Each key turns on its own light.
In the example shown in the figure, the left key (let's call it key one) turns on lamp 2, the right (key two) turns on lamp 1.
Picture 1.
Inside the switch mechanism there are three contacts, one suitable and two outgoing. The supply phase is connected to a suitable contact, and along the outgoing phase it is distributed in directions, for example, into two rooms. Switching between the outgoing and suitable contacts is carried out using movable contacts located inside the mechanism.
Each outgoing contact has its own control key.
In Figure 1, both keys are in the “off” position, the moving contacts of the first and second keys are open.
Let's see what changes will occur in the circuit when one of the keys is turned on, Figure 2.
We move key number one (located on the left) to the “on” position. The circuit is closed, the phase is supplied through the corresponding outgoing contact to the core of the wire supplying lamp 2, as a result of which its lamp begins to glow.
Figure 2.
We turn off key number one, to do this we move it to the “off” position, the circuit opens, the lamp of lamp 2 goes out.
Now, turn on key two, moving it to the “on” position, Figure 3. The circuit of lamp 1 is closed, the phase through the corresponding core is supplied to the lamp of the lamp, as a result of which it lights up.
Figure 3.
To turn off lamp 1, move key two to the “off” position, the lamp goes out.
When both keys are simultaneously moved to the “on” position, Figure 4, the circuits of the first and second lamps are closed, the phase is supplied to their lamps, as a result of which they begin to glow.
Figure 4.
Accordingly, when the first and second keys are turned off simultaneously, both lamps will go out at once.
Two-key light switch device
The design of the double switch is divided into two main parts.
The first is protective and consists of a plastic frame and two keys.
The second part, the working mechanism.
In order to get a closer look at its design, let’s remove the protective parts of the device. The first step is to remove the keys. To do this, you need to pry one of them from the side with a flat-head screwdriver and remove it. Then, the second one.
Now, let's remove the frame. On various models it can be attached in different ways, the most common methods are described below:
- on two screws;
- latches.
On the switch presented in our example, the frame is secured with latches that can be snapped off quite easily by hand.
Before us is a mechanism two-gang switch.
To fix the mechanism in the socket box (installation box), it has two mounting options.
The first, using a metal frame (on some models, strips), on which special holes are provided for these purposes.
This type of fastening allows you to adjust and align the mechanism in the socket box over a fairly wide range.
The second option is using spacer legs. Two screws located on the sides of the mechanism are connected by a screw drive to the spacer legs of the device. We tighten the screws, the legs unfold until they fit into the spacer in the glass of the socket. We unscrew the screws, the legs fold.
The connection of self-clamping contacts, relative to screw ones, is greatly simplified; it looks like this. The stripped wire core is inserted all the way into the contact hole, where it is finally fixed without any additional effort on the part of a person.
As can be seen from the figure below, each contact provides for the fixation of two wires.
If it is necessary to disconnect the wire from the contact, there are special buttons on the mechanism. We press and calmly pull out the core.
To check the presence or absence of a phase on a specific contact, special windows are provided on the mechanism.
Each switch contact has its own symbol. They may differ on different models; in some cases they are numbers, in others they are Latin letters.
More details about installation and connection.
How to connect two light bulbs to double switch?
What is a double switch and where is it used?
Double switch is used to control two electrical appliances one device or to turn two groups on and off on one household appliance.
Often, such switches are used to turn on different sections of multi-lamp chandeliers - the switch keys are responsible for different groups of light bulbs in the chandelier, and when both buttons are pressed, all the light bulbs in the chandelier light up.
Before installing the switch, it is necessary to carry out the following preparatory work:
- purchase a switch that suits your requirements;
- study the features of the location of contacts;
- prepare the work site and necessary tools;
- carefully adhere to safety rules.
Two-key switch device
All two-button switches are three-pin - they have one input and two outputs. The wire with the phase must be connected to the common input, and the terminals turn on and off different sections in household appliances.
During installation, the switch is positioned so that the input contact is at the bottom, and the terminals intended for connecting lighting fixture- above. Since such a switch is three-pin, there are also three clamps for the wires.
Why should a phase be broken by a switch?
Whatever the design of the electrical appliance, the phase must be interrupted by a switch. This is necessary to de-energize electrical appliances.
Thus, during repair maintenance of the device (for example, when replacing a burnt out light bulb), safety is ensured when the machine is turned on.
Double switch connection diagram
Before installing the switch, it is necessary to turn off the electrical current to switchboard and make sure there is no voltage on the wires. Blue and red wires go from the electrical panel to the distribution box, responsible for zero and phase, respectively.
To connect a double switch, it is necessary to connect the neutral wires of the lamps and electrical panel, and connect a wire to the phase wire of the electrical panel that is connected to the common contact of the switch.
Thus, a blue wire (phase of the first lamp) and a yellow wire (phase of the second lamp) come out of the switch. Each of them is connected to the corresponding phase wires of each lamp.
In the distribution box they are connected to the required light bulbs or fixtures. That is, these wires are switched phases of different groups of electrical devices.
The blue wire (neutral) that goes to the electrical appliance is connected to the blue wire (neutral) on the distribution board. The switch connects the phases of the two sections of the lamp.
After making all the connections, you need to check the correctness of the work done. If everything is done correctly, then you can move on to soldering and insulation.
Connection features or how to avoid mistakes
When connecting wires of the same color, you can use screw connectors, which are easy to use and very reliable. It is important to use this connection when using copper and aluminum wires simultaneously.
After all, by connecting such wires directly, oxidation often occurs, the contact becomes loose and can cause heating of the wire, which in turn can lead to burnout and fire.
What is a pass-through switch and where is it used?
A switch that turns electrical appliances off and on from two different places is called a pass-through switch. They are used for rational use of electricity. For example, in a long corridor it is convenient to turn on the light at one end and turn it off at the other.
The pass-through type switch has three contacts for the supplied wires. To be able to control electrical appliances from several places, it is necessary to use four-pin or six-pin cross-type switches.
Connection diagram for pass-through switch
A double transfer switch has two groups of contacts independent from each other. To connect such a switch, you need to connect the neutral wire of the electrical panel with the neutral wire of the distribution box, and then connect this box to the lamp.
This action must be performed for the first and second switch. After this, you need to connect the switched contacts of both switches. Then a cable is taken out from each switch, the lamps are mounted and connected in parallel to each other.
When this work is completed, you can proceed to installing the junction box. The cable coming from the lamp and the wires from the switches and electrical panel are inserted into it. To choose the location of the junction box, you need to find a place so that it does not interfere with anyone and requires short wires.
After completing the work, you need to do a check - flip the switch and see if it sparks or not.
Checking the residual current device for operation
The RCD performs an important function - in the event of an electric current leak, it cuts off the voltage. Therefore, you need to systematically check the device for operation.
You can perform the check in several ways:
If the residual current device does not work, this indicates a malfunction, or a breakdown of one of its internal parts. A special case is the breakdown of the mechanism for simulating current leakage. In this case, the residual current device functions and copes with its task.
How to connect a double switch for two light bulbs?
What you need to consider when choosing summer camp for your child Academic year has just ended, which means it’s time to think about what camp your children will go to this summer. You should start studying.
Why do you need a tiny pocket on jeans? Everyone knows that there is a tiny pocket on jeans, but few have thought about why it might be needed. Interestingly, it was originally a place for storage.
Top 10 Broke Stars It turns out that sometimes even the biggest fame ends in failure, as is the case with these celebrities.
What people regret on their deathbeds: revelations from nurses Human life short. But often people think about what could have been done and accomplished when it is already too late.
Why have you never seen a baby pigeon? Go to any city square and, without a doubt, you will see hundreds of pigeons flying around passers-by. But, despite such a large number.
What is it like to be a virgin at 30? I wonder what it’s like for women who didn’t have sex until almost middle age.
Wiring diagram for a double switch for two light bulbs
Double switch connection diagram
A two-key switch is designed to turn on and off two electrical appliances from one place or control individual sections of one device.
Most often, such switches are used to turn on chandelier lamps: each of the two keys turns on one of the two groups of lamps, and when both keys are turned on, the entire chandelier is turned on.
Each group can have a different number of light bulbs - it can be either one or ten or more lamps. But a two-key switch can only control two groups of lamps.
Most two-button switches are installed in corridors near entrance doors private houses. In this case, one of the keys turns on the light in the corridor, and the other on the street.
In apartments, two-key switches are often installed to turn on the light in a separate bathroom - bath and toilet. In general, there are a large number of options for using two-key switches, but the circuit for switching them on is the same in any case.
It differs little from the connection diagram for a single-key one. At its core, a two-key switch consists of two single-key switches installed in one housing.
So, before starting installation, you need to select and purchase a two-key switch in accordance with color, design and other requirements.
Before installation, you should carefully familiarize yourself with the location of the switch contacts. Sometimes you can find the switch contact diagram on the back of the switches. where the normally open contacts are shown in the off position and the common terminal.
A double switch has three contacts - a common input and two separate outputs. A phase from the distribution box is connected to the input, and two outputs control the switching on of groups of chandelier lamps or other light sources.
As a rule, the switch should be mounted so that the common contact is located at the bottom.
If the circuit is on back side there is no switch, the contacts are determined as follows: the input contact is on one side of the switch, and the two terminals to which the lighting devices are connected are on the other side.
Accordingly, the two-key switch has three terminals for connecting wires - one on the input contact, and one on each of the two output contacts.
So, we figured out how the switch works. Now we need to prepare workplace, tools and materials. We must not forget that the most important thing when performing any work related to electricity is safety.
Regardless of the design of the lighting fixture, the switch in the circuit alternating current must break the phase wire. Thus, when the switch is turned off, electrical appliances are de-energized, which can then be safely serviced, for example, replacing a burnt-out light bulb in a chandelier.
The neutral wire from the junction box is connected directly to the controlled electrical appliance.
Each of the keys of a two-key switch can be set to one of two positions, turning the electrical appliance on or off.
Connection diagram for two-button switch
Before starting installation, be sure to turn off the voltage at the distribution board and make sure that there is no voltage on all wires.
Two wires come into the distribution box from the electrical panel - phase (red) and neutral ( of blue color).
Connection diagram for two-button switch assembled in the following sequence: neutral wires from the electrical panel, lamp No. 1 and lamp No. 2 are immediately connected to each other. The phase wire that came from the electrical panel is connected to the wire that goes to the common contact of the two-key switch.
Connecting a two-key pass-through switch
Single-gang switches are being used less and less in modern apartments with three- or five-lamp chandeliers. We suggest you consider how to connect a two-key illuminated switch with a socket, also a photo and diagram in our article.
Switch types
There are two ways to connect wires to a light switch: screw terminals and self-clamping terminals. In the first case, the cables are placed in a special block and secured with a screw. The only drawback The problem with this type of connection is that over time the screws loosen and need tightening. Those. A mini-circuit can occur at any moment.
Large manufacturers use the second option to create their products. It is considered more expensive, but also more effective. In addition, recently modular technology has become increasingly used.
Diagram: example of connecting a two-key switch
How to connect a switch
Below we have presented a diagram of the operation of the switch and its installation. A two-key Euro switch is two single devices, but in one housing. Their phases are combined, and at the moment when one bridges its contacts (and it begins to supply power to its group of devices), the second breaks the circuit and stops receiving signals from the phase cable from the outlet or wiring in the apartment. This happens because the ground wire and phase neutral are connected directly to the lamp, and the phase passes through the switch.
Connection diagram for a two-key switch to a chandelier
To work you will need:
First we turn off the electricity. Next, you need to prepare the wires in the installation box; to do this, we clean them with pliers. It is necessary to leave approximately 10 centimeters of wire, cut off the excess stationery knife. Now you can connect the wiring and switch wires. If the wiring is three-phase, then special labor this process will not work. 6 we simply connect the cables corresponding in color to 3 phases and zero.
If the wiring is two-phase, then you need to fasten the wires of the switch with a terminal, and eventually getting two jokes instead of three, connect them to the power supply of the electrical network.
Install the protection plates and turn on the power. Ideally, both switches should be in the up or down position when the light is off. If necessary, remove the second electrical switch, rotate it 180 degrees in the box, then set it as two toggle positions.
Video: How to connect a two-key switch
Connecting a chandelier is also no more difficult. Certain lamps are combined into groups, and if there can be only two groups, then there can be any number of lamps: with two arms, five or even six.
Switch installation
The main difficulty is not connecting the wires to two independent lamps. And in installing a switch in a junction box. Imported switches (simon, wessen, lezard, schneider electric, anam, legrand-legrand, valena).
You need to use a screwdriver to secure the switch directly in the installation hole and tighten it with screws or bolts (which are most often included in the kit). Then we install the box with the keys on it, press it and secure it (if necessary), with bolts on top.
A very interesting practice is to install a switch with an indication of hidden installation. This type of electrical appliance is popular in a “smart” home and apartment, where design and style play a big role. Its installation is carried out in a recess in the wall, from the junction box to the wiring cables, everything is completely similar to conventional installation, but at the final stage you need to attach a special closing cover (sometimes sensors with a flip flap are used).
Let's consider the installation process if there are two electricity networks. We combine one network into one group, the second into another. Now we connect the cables accordingly. One wire should close when the other opens, so check the connections carefully.
One switch for two lamps
As already mentioned, the devices control two groups of lamps, which means you can install the bathroom and corridor on a two-key switch. To do this, we bring the wires from both lamps to the wires and the location of the switch, combine each of them into separate groups, connect them with terminals and attach them to the switch. For large rooms, we recommend reading the article on how to connect a pass-through two-key switch.
Installing a light switch for two rooms is done in the same way.
- combine groups thoughtfully (for example, kitchen-toilet, corridor-bath, living room-room, etc.) then there will be no cable overuse
- install switches within easy reach: not behind a chair or cabinet
- a more powerful switch must be connected to the lamp and fan, taking into account that in addition to the main cables, there is a wire responsible for powering the fan itself
- We recommend using switches with simon indication
- In order to connect the device correctly, you must review the wiring layout, especially when connecting to two power sources
- If you have not had such experience before, we recommend that you first watch a video of how to install the switch.
How to connect a two-key switch. Connection diagram
Many of us have a question: How to connect a two-key switch yourself? - the question is simple, you just need to understand a little about the method of such connection. Let us first consider more simple circuits with connection of a light switch with two keys. The method of connecting a two-key light switch is generally no different from connecting a switch with one key.
The advantage in installing and connecting a two-key switch is that with such electrical diagrams ah, using a two-key switch, you can sort of control the lighting.
Connection diagram for two-button switch
A clear example of such a choice of lighting is presented in the electrical diagram of Fig. 1, when in the electrical circuit of the lamp. either one lamp or the other turns on, or all two lamps turn on. The switch here is also connected in the electrical circuit in series on the phase wire. The lamps in the chandelier are connected in parallel, #8212 external source electrical energy.
Connection chandeliers-to double switch
When connecting a chandelier with three lamps to a two-key light switch, Fig. 2, the neutral wire in this connection diagram is common to two groups of lamps, that is, the choice of chandelier lighting has a connection:
Connecting two chandeliers
The connection of a two-button light switch in this circuit, with the connection of two lamps, #8212 is typical as for other electrical circuits presented. The circuit can be imagined as connecting two chandeliers controlled via a two-key switch (Fig. 3).
How to connect a chandelier with 6 lamps
Connecting a chandelier with six lamps through a two-key light switch (Fig. 4) indicates how to connect lamps in this way. Everything is just as simple here. Wires L1 and L2 from the switch have a branching, like the neutral wire, into two groups of lamp lamps.
Installation and subsequent connection of a two-button light switch for this type of lamp does not require a detailed explanation. The choice of lighting from a two-key switch is carried out as follows by turning on the lamps, where the following is included in the electrical circuit:
How to disassemble a two-key light switch
Disassembling a two-key switch is initially carried out by removing two keys, followed by disassembly.
How to connect a two-key switch
The photograph below clearly shows the method of connecting wires to the screw contacts of a two-key switch.
A wire with phase potential is connected to one screw contact of a two-gang switch. The other two wires supplied to the load are separately connected to the contacts from the two switch keys, as shown in the presented electrical diagrams.
How to install and connect a light switch
From time to time, every person who actively uses lighting in the house needs to replace a switch that has failed or is out of fashion. This cannot always be done by a qualified specialist - a master electrician, so know the basics self-installation necessary for your own peace of mind. It is important to know how to install a light switch so that the work you do yourself is of high quality.
Switch: history and evolution
The switches we are familiar with today appeared in the late 1870s, thanks to the invention of Edison. A few years later, in 1893, the prototype of a modern switch was seen - a switch with a spring mechanism and an automatic switch. At the beginning of the twentieth century, switches began to slowly take on their usual form. In the late 40s and early 50s of the XX century, single-key products began to appear, and later it became possible to purchase options with 2-3 keys. Today, this element of the home electrical network is equipped with lighting, has various shapes and it no longer seems like something unusual.
Selecting a dimmer: one or two keys?
The convenience of controlling light in a room depends on many factors:
- own taste
- room layout
- lighting intensity.
One- and two-key on/off elements are optimal solution for domestic purposes, since they cope well with the load, but will not withstand if you have to work with powerful professional lighting devices - this is important to take into account.
They are suitable for working with both old incandescent light bulbs and new, modern inventions - fluorescent lighting fixtures or diode lamps, strips.
The number of keys directly depends on the tasks assigned to the product - for example, to turn on the light in a separate bathroom, it is better to purchase an element with two keys in order to save energy. IN small spaces A single-key option is ideal.
Tricks for choosing a lighting controller: connection without problems
Before proceeding with the connection, it is important to know the tricks of choice. Today there are many models that allow you to control the level of lighting in rooms. If the choice fell on rheostatic models, then it is important to remember that they allow you to select the level of light and smoothly adjust the brightness of the light bulb. At the same time, this option is the most profitable, but it is suitable only for the most simple lamps incandescent and, having installed such a light controller, you will have to use it exclusively all the time.
The body must be made of durable and necessarily fire-resistant plastic. The internal base can be made of ceramic. If the backlight is installed, which is very often used in modern models, then you must remember that such a switch is energized all the time.
How to correctly install control elements: determining the amount of light, preparatory work, connection and tools
Before you begin installation, you need to decide where the switches will be located, since the convenience of controlling the light in the room depends on this. The connection itself is not complicated, so the desired amount of light is easy to achieve. After this, it is important to check that you have all the tools necessary for the job:
- switch/s
- junction box
- wires for connection
- insulating tape.
Installation work: methods for installing light connection elements
There are several ways to properly connect light controllers. All of them are not complicated, do not require a lot of time and effort, but some knowledge in this matter is required so that later the light sources will please the eye and can meet the needs of people.
Sometimes it is necessary to turn on/off the lights in rooms from different places, especially if the room is large. For this purpose, different lamps are usually installed. For example, a person will want to control the lighting in a room from the hallway and, in fact, from the room itself; there are 4 - 5 light bulbs in the chandelier; this is why you need to know how to connect the light through a switch in order to play with the lighting at your own request.
Essentially, it is necessary to make it possible to control different groups of light bulbs in a chandelier, for example, in a combination of 1, 2, 5-4-5 pieces at the same time.
In order to change the number of light bulbs in a group, you need to know how to connect a light switch.
Connection diagram
To make the connection, you will need the controls themselves - single or double - depending on the needs and desires of the people doing the repairs. It is more convenient to use two-key pass-through switches if we are talking about a hallway.
This is what it looks like disassembled, ready for installation:
A double or, as it is also called, a two-key lighting control element always has six contacts - respectively, two inputs and four outputs. The connection is made based on these features.
The connection diagram looks like this:
In essence, these are two single elements connected in one reliable housing. Here you can see how to connect a double light switch so that further operation is as safe as possible for humans, convenient and practical.
The scheme, designed to control lighting simultaneously from three places in the room, is not much different from the previous one. The difference is that it includes another double-type element - cross, which differs from single and double ones, since it has four contacts, and not six, as before - two inputs and two outputs, respectively. When you press the double paired switch, two contacts independent of each other are immediately switched.
It is important to note that the total number of lighting control points from one switch installed in a room is not limited to two or three, it can easily reach five or six. This is done in the following way: a single switch with three contacts is used, in conjunction with it, another one with four contacts is installed.
Getting started on creating the perfect indoor light
It is necessary to check the availability of all tools in advance so that the connection goes smoothly, since then leaving an unfinished control element will be simply dangerous. After this, you should check whether the wiring and lighting installed in the room are working properly.
Single-key version of the built-in type, usually installed in the corridor or hallway. This is what the one- and two-key options look like:
With the help of these developments it is convenient to create perfect lighting in the corridor.
The connection diagram for a single-key switch is the simplest, since there are only 2 wires per switch. You can connect a light switch to one light bulb from the apartment electrical panel, here the phase is a red wire, the zero is a blue wire. The voltage comes to the distribution box, which is located in the corridor.
The phase is connected to distribution box with a red wire that goes directly to the switch. From it there is a wire indicated in the diagram orange, goes back to the junction box, where it is also connected to the wire orange color, going to the lighting device, which is also a load in this circuit.
Zero, in turn, is connected in the junction box to a wire marked in blue, which immediately goes to the light bulb. It is convenient to use terminals to connect wires in the junction box - with them the connection will be faster and more reliable.
Important to remember. The switch should always break the phase, but not zero.
When replacing a lamp, it will be enough to turn off just the switch, and there will be voltage in the cartridge. If you mix up and break the zero, then when you replace the lamp, it will remain energized in any case. This happens if the switch is equipped with an LED, which always glows in the dark. In this case, the connection of new elements will occur under voltage.
Nuances of work: connecting light
There are two types of installation - with open and closed wiring. In the event that we are talking about an installation with open wiring, then help will come a socket box that is installed in the wall. The selected switch is already attached to it according to the above diagram.
Fastenings are made with screws, dowels or self-tapping screws - the choice of fasteners depends on the wall material and the type of switch. The holes into which the switch will later be screwed are drilled in advance using a drill. After connecting the wires, an insulating cover is applied and screwed using special hooks. The key that will be used to regulate the amount of light in the room is placed last. As you can see, connecting the light is an accessible matter for most people; you just need to carefully study the instructions and follow the diagram.
This is what the socket boxes look like:
So - disassembled switches, ready for installation
In the video you can watch the entire work process and clearly see all the features that can await a person during installation:
You can install the switch yourself, even without special education. Difficulties can only await those who are afraid to work under pressure, as they will have to overcome their fear. Otherwise, today there are detailed manuals and video tutorials that allow you to do any work yourself, without resorting to the help of craftsmen, who sometimes have to wait for several days. However, if a person feels insecure or afraid, it is better not to take risks or experiment, but to use the services of a specialist - it is safer and more reliable. Thus, the connection will not take much effort, time and nerves.
Simple useful tips
Easy and Strong Wood Glue: You can make your own wood glue. It is enough to take a little cottage cheese and dissolve it in ammonia. For 100g. ammonia, 25g. cottage cheese. Wooden surfaces must be carefully adjusted to each other so that there are no gaps, smeared and tightly secured with clamps.
Switch on the vacuum cleaner tube: Some modern vacuum cleaners are equipped with a switch on the hose. It is very comfortable. But if your vacuum cleaner doesn’t have such a switch, it doesn’t matter. You can do it yourself. You need to connect the socket to the body of the vacuum cleaner, and attach the cord with a plug and switch to the hose with adhesive tape.
During the operation of the home electrical network, breakdowns of installation products occur - switches, sockets, and failure of lamps. In some areas of residential premises, two-button light switches are installed, which allow you to turn on the lights separately. This is intended for rooms such as a toilet, bathroom, hall in which the chandelier is located. To connect the chandelier, a two-key switch is used; this is necessary to change the level of illumination in the room.
So how do you connect a double switch to two light bulbs yourself? For knowledgeable person this is not difficult; an experienced master will do it quite quickly and easily. To work, you will need electrical installation tools - pliers with insulated handles, a tester to check the absence/presence of voltage, a screwdriver with replaceable nozzles (bits), insulating tape, a phase indicator.
The installation of a two-button switch is carried out by one specialist electrician; to ensure the safety of the work being carried out, it is necessary to disconnect (de-energize) the home electrical network. This is done by turning off the circuit breakers in the distribution panel of the input power supply device of an apartment or private house.
After de-energizing the home electrical wiring, the faulty switch is removed (dismantled), and a new (working) two-key switch is installed in its place. A two-button switch provides separate power supply to two-lamp lamps or two adjacent rooms (for example, a toilet and a bathroom).
Connection diagram
The electrical connection of a two-bulb switch is quite simple and is done in the same way as single-button switches. For these purposes, it is necessary to have pliers and a Phillips screwdriver; during the work, the faulty switch is removed and a new switch is installed in its place. A two-key switch provides distributed switching on/off of electric lamps both in chandeliers and in adjacent rooms.
Aluminum or copper wires are inserted into the switch terminals and screwed securely. In such an electrical circuit, three wires are used - one wire is the incoming phase wire, the other two wires go to the lamps. Correct scheme The electrical connection must ensure a break in the phase wire, that is, the switch breaks the power supply circuit.
After the wires are screwed to the switch terminals, the switch is installed in a mounting metal/plastic “cup”, this name means a mounting device that is previously secured to the wall with spacer screws during electrical installation.
If the switch is intended for “recessed” installation in the wall, then such an installation diagram is used; If the switch is designed to be located away from the wall, it is mounted on a pre-installed base made of dielectric material.
Electrical wiring is pre-installed on the wall (if the electrical wires are hidden under a layer of plaster); specialized fasteners are used for such purposes. If the electrical wiring will be mounted on top of the plastered surface of the walls, then in this case a plastic cable channel is used. This channel is mounted on the walls using the same expansion screws.
Electrical installation work
For electrical work in the house, you will additionally need an electric hammer or drill. Here it all depends on what type of wall: if the wall is brick, then a drill will do, but if the house is built of reinforced concrete panels, you only need to use a hammer drill.
To drill holes in the wall, only drill bits with pobedit tip are used. When drilling a wall, it is necessary to periodically remove the drill from the hole and cool it in water. This will avoid drill breakage (fallout of the pobedite tip) when long work. The material used for soldering the winch to the drill is brass. This metal is soft and can melt when exposed to high temperatures.
The drills required for work must be good quality and from famous manufacturers. It is best to have a set of various Pobedit drills available for this work, and the efficiency of electrical installation work will increase significantly.
The places for future drilling for fasteners are first marked; for this you can use graphite pencils or hard metal object apply marks on the surface of the walls. At the marking points, holes are drilled using a drill or hammer drill.
Spacers are driven into the drilled holes; for this you can use a hammer with a wooden mandrel. The spacer fasteners must fit tightly into the finished holes. The electrical wiring is laid and secured using expansion screws. The distribution boxes carry wires from the switch and light bulbs, as well as the supply line from the power supply input device.
When making electrical installations, it is best to use wires with colored cores; in this case, it will be easier to navigate the electrical connections. For the phase wire, it is better to use a red wire; the neutral wire can be of any other color.
Assembling lighting in the house
To carry out installation work, electrical lighting of a house or apartment, you need a high-quality tool - a drill, a hammer drill, Pobedit drills, pliers, wire cutters, a drill bit for a rotary hammer (used for drilling large holes in the wall for sockets/switches), electrical tape, electrical tester for checking voltage, screwdriver with replaceable bits, knife for stripping wire insulation, two-pole voltage indicator.
An incorrect lighting assembly circuit can be identified using a tester; if the electrical circuit is connected incorrectly, the automatic input switch in the distribution panel will be triggered. Therefore, the circuit is de-energized and sections of the circuit are called up with a tester to detect a short circuit.
When establishing the location of the short circuit, it is necessary to disconnect the wires in this place, make the correct connection and insulate the twisted conductors. The connection to the input power supply devices of the mounted electrical wiring is done last, after the entire circuit has been mounted and laid under plaster or in cable channels.
Socket boxes made of metal or plastic are installed in pre-drilled large-diameter holes (done using a hammer drill with a drill) and secured in place with spacer fasteners.
When carrying out work, instead of twisting wires, you can use small terminal blocks, this will allow you to carry out installation work faster and further simplify the operation of electrical wiring. It is most convenient to connect electrical power groups in terminal connectors; this is done using a Phillips screwdriver.
A two-key switch will also serve as a lighting switch; by turning on one or two keys, the level of illumination in the room will change. A two-key switch can provide separate switching on of chandelier lamps, groups spotlights, adjacent rooms.
The second group of spotlights from the switch can be connected to more, connect one or two lighting fixtures to the first key, and connect three to five light bulbs to the second. As a result of this combination, it is convenient to change the brightness of the light in different rooms or non-residential premises.
The final phase of electrical installation work
After the entire electrical circuit has been assembled/installed, all connections are insulated and put in place, the electrical circuits are “tested” without screwed-in light bulbs using a tester (multimeter) both with the switches on and off. This will allow you to check that the lighting circuit is assembled correctly.
If everything was assembled correctly, the tester will show the absence of electrical resistance. Next, lighting lamps are screwed into all lamps, all wiring is connected to the input switchgear(usually one- or two-pole circuit breakers at 16/25 A). The entire circuit is switched on, the operation of all lighting switches is checked by separately turning on/off the keys.
Switch in the socket Additionally, the places where wires and connections are twisted are examined in order to possibly detect heating in them, this can lead to burnout electrical connection. Therefore, it is necessary to eliminate such defects in a timely manner. It is also necessary that there is no overcurrent on the switch; if it is overloaded, it will quickly fail.
There should always be light in residential and utility rooms. A group of light bulbs is used for lighting; the convenience of their use directly depends on the availability of a suitable switch. They come in single, double and triple, but the most popular is double.
Two-gang switch
The device consists of the following elements:
- Plastic body.
- One input and two output terminals.
- Two keys.
- In some types there is a light indicator.
Principle of operation
The device, using its individual keys, can supply and interrupt the current going directly to the lighting fixtures.
Advantages and disadvantages
- Using different keys you can turn on and off certain groups of lamps.
- Saves cables during installation (one is needed), because installing two single switches requires laying separate ones.
- If it is installed for a large number of light bulbs, they can only turn on part of them (light adjustment), and this saves electricity.
- Used in rooms with high humidity.
- It does not require special care.
- Easy to install.
Nuance: The case is made of durable plastic, but can burst from strong physical impact.
How to connect with your own hands?
Before starting work, you need to familiarize yourself with the diagram and prepare the necessary tools, otherwise the process will take a lot of time and effort. Taking into account all the nuances, the connection is within the power of an ordinary user, and not a professional electrician.
Required tools:
- Switch and plastic mold (glass).
- Curly and indicator screwdriver.
- Crimping lugs and special tools (crimping).
- Construction knife.
Step-by-step connection process: 
- Initially, the power supply throughout the house or apartment is turned off using a switch in the panel block.
- The switch is disassembled: the keys and the housing are carefully removed so that there is access to the terminal blocks.
- A special hole is installed in a suitable hole in the wall. plastic mold, which protects the entire mechanism from various undesirable factors. A three-core cable is passed through a hole in the housing.
- The edges of these conductors must be cleared of insulation. Using a knife, approximately 1-1.5 cm is cut, the main thing is not to damage the copper or aluminum base.
- Crimp lugs are placed on the edges of the cores and inserted into a special crimp (pressed). This helps protect them during the clamping process. bolted connection in the switch.
- Of the three wires, it is necessary to calculate the phase one. To do this, the room is connected to the current, and the end of the indicator screwdriver is alternately leaned against the bare tips. If the diode in the middle of the plastic transparent screwdriver lights up, this is a phase. After finding the required wire, the room is de-energized again.
- The end of the input phase is placed in the switch hole and clamped with a screwdriver. As a rule, it is located at the top and is marked by the manufacturers with the “L” icon.
- The ends of the other two wires are placed in the terminals that are located below.
- When the wires are secured and checked, the body and the base must be combined together and placed in a plastic base in the wall and secured (alternately tighten the side bolts that expand the metal petals). Two keys (caps) are attached.
- Next, the switch in the panel block restores the supply of electricity throughout the house, after which its performance and correct functioning are checked.
Safety precautions
Work on connecting an electrical appliance is carried out only when the room is completely de-energized. Neglecting this condition may result in electric shock, hand burns or death.
All tools used must have insulation elements (plastic handles, body). To fully protect a person, it is advisable to wear special gloves on your hands and walk in rubber shoes (materials are dielectrics).
Connection diagram for two groups of light bulbs
- In order for the flow of electricity to diverge in the room, there must be a device mounted into the wall - this is a key element. Initially, a two-core cable is inserted into it from the panel block (one wire is connected to the phase, and the second to zero).
- From each group of lighting fixtures, a two-core cable is also laid to the box. The cable contains two wires with insulation of different colors (for example, red “zero” and blue “phase”).
- The three red wires are connected together by twisting or terminals. They serve as a continuous base connected to all light bulbs or other devices.
- The phase central wire coming from the “panelboard” is incoming (main) and is fed directly to the switch to the desired terminal. The blue wires from different groups of light bulbs are not connected together, but run as separate wires to the output terminals of the switch.
In total, the box should contain the following items:
- 1 main phase wire.
- 1 output for the first light bulb or group.
- 1 exit to the second group.
- 1 wire “zero” combined with all light bulbs (twisted).
Considering all the nuances of the connection according to the diagram, it is noticeable that the phase wire plays a key role in the process of turning on and off groups of light bulbs from the power supply. Zero – serves as an addition.
Recommendation: When twisting the cores together, their ends must be thoroughly cleaned of insulation and no less than 4-5 cm long. It is advisable to clamp the wires with pliers in such a way that a braid is formed. The exposed area must be wrapped with insulation or a protective cap must be put on.
Advice: To reduce waste on the conductivity of wires from the box to the switch, you can use one three-core wire, the wires of which serve as phase distributors.
Connection diagram for one light bulb
This method is much simpler in connecting the necessary lighting fixture and is almost similar to the previous option. In an example it looks like this:
- A two-core cable is connected from the “shield” to the distribution box.
- An identical cable runs from the light bulb.
- Wires with a zero value are connected together and insulated.
- The main phase wire is connected to the appropriate input of the switch (terminal block “L”), and the output wire is connected to one of the two lower terminals.
In this case, one of the buttons of the two-button switch is inactive.
Connecting a switch with a light indicator
Some switches have transparent windows at the bottom, near which there is an LED. It is designed to make the switch visible in the room at night and visible to its operation from the main electrical supply system.
Connection process
- Two thin wires extend from the diode to connect them to the main power cores.
- One tap must be aligned with the main phase conductor and secured in the terminal block.
- The second tap can be attached to any tap phase.
- After this, the lower part of the device keys will light up, which means the switch is fully functional.
Connection diagram for two-button switch
- Do not connect a household appliance when the power supply is turned on.
- All work must be carried out with working tools.
- The fully assembled switch must be of high quality.
- It is recommended to purchase a device with terminal blocks that allow you to secure the wires once. Switches with bolted cores can damage it, and full pressure reduces wear resistance and can cause sparking.
- During the connection process, cases often arise when it is necessary to resort to the process of twisting wires (series connection). In such cases, it is necessary to carefully clamp the connecting wires and wrap them insulating material, and put a protective plastic cap over it. When faced with this problem and confusion with the connection diagram, it is better to contact a qualified specialist so as not to cut off the power to the entire apartment.
Conclusion
The most profitable option for a room is to install a two-key switch, because with its help you can turn on the light in required quantity(brightness adjustment) and in the corresponding rooms. The main thing is to install the switch correctly, following safety precautions, and it will last for many years, without additional intervention or repair.
