Brief operating principle of an electric bell. How to connect a bell in an apartment or private house: we use a diagram to connect a doorbell. Advantages and disadvantages of wireless calls

As a rule, not a single apartment or private house is complete without a doorbell, which notifies the homeowners about the arrival of guests. Previously, instead of electric bells, special “knock” handles or bells were used, suspended inside the home on a cord, the end of which was brought out. By the way, such a device is still quite functional for entering a house that is not surrounded by a high fence. And some adherents of the retro style successfully use this option. However, in our time, when private territory is most often protected and fenced, bells are usually installed on the fence gate, so bells and “knocks” are irrevocably a thing of the past.

Electric doorbells have always been traditional for city high-rise apartments. And recently, for the safety and peace of mind of residents, intercoms have been installed in addition to or instead of them. True, specialized companies undertake the installation and subsequent maintenance of such equipment. Nevertheless, the question of how to connect a call in an apartment or private house has not lost its relevance. Moreover, by doing this work yourself, without inviting a specialist, you can save a certain amount.

Main types of doorbells

Doorbells come in a wide variety. They differ in operating principle, connection method, number of functions, and, of course, design. All these parameters directly affect the cost of the device.

So, according to the connection method, calls are divided into three types - mechanical, electromechanical and electronic.


  • Mechanical devices, already mentioned above, today are most often used as decorative elements of the facade or hallway. They can make themselves felt when the tongue of the bell is wiggled with a cord or simply when the door is opened. When the door leaf swings open, it impacts the bell, and its ringing lets you know that someone is entering or leaving.

  • Electromechanical call- improved mechanical bell type. The design of this device is extremely simple - it is a button for sending a signal, taken outside the apartment or house, a resonator mounted in a living room, and an electrical cable that connects the two parts of the device.

The resonator consists of coils with a wire winding. When voltage is applied to them, an alternating electromagnetic magnetic field appears, causing the metal hammer to vibrate. He, in turn, hits the bowl, also made of metal, due to which the sound is reproduced.

Another option is that a movable core is inserted into the coil, which, under the influence of an electromagnetic field, moves up and down progressively. It alternately hits two plates, producing sounds of different tones.


This diagram shows the operating principle of an electromechanical device - the phase (L) is open at the button contacts, and the zero (N) is connected directly to the bell. When the button is pressed, the circuit closes, causing the device to emit a sound signal.

The bell, as shown in the diagram, can be connected to one or two buttons. The second connection option is used in cases where in a private house the signal must be supplied from two places, for example, from the gate and from the front door. And this is often practiced in the entrances of high-rise buildings - a button in front of the vestibule for several apartments, and a second one directly at the door. Each of the parallel-connected buttons is capable of completing a circuit, that is, they are independent of one another.

Electromechanical bells are usually inexpensive and do not have complex designs. However, the disadvantages can be considered a monotonous, most often not very pleasant sound and insufficient reliability of the mechanical part. However, unreliability is a relative matter. This defect is more typical of currently mass-produced models, the vast majority of which are made in China. And at the same time, very often there are electromechanical bells that have already served for dozens of years and are not going to “retire.”

An electromechanical bell is suitable for those home owners who are not particularly demanding about the sound tone of the signal.

  • An electronic call is a more advanced design. Such devices are assembled on the basis of microcircuits, have a built-in speaker, and the variety of sounds they generate simply cannot be described. In addition, electronics allows you to expand the functionality of the device.

Today, wired and wireless options for electronic calls are available for sale.


Connecting wired calls is practically no different from the diagram shown above for electromechanical types. True, there are models that, for greater safety, are powered by a voltage of 12 volts, or even from autonomous sources (batteries). That is, their connection must be carried out with the preliminary installation of a step-down transformer or the included power supply. On the button in such models, of course, it is not the phase that is broken, but the low-voltage signal.

Wireless calling options are more convenient to use. However, their transmitter button, as a rule, has an autonomous power supply, and must be located in the area of ​​guaranteed reliable signal transmission to the device.

Some wireless models operate on a 220 V network and are plugged into a regular outlet; the button is equipped with batteries. In other options, the bell itself is also powered autonomously.


Many both wired and wireless models have evolved from simple calls to a much more complex security system, equipped with special functions and sound recording. These functions can be activated by pressing the call button.


There are also models that, along with the above functions, also include remote control devices for opening gates and/or entrance doors. Agree, it’s quite a convenient option, especially for private homes.


Installing a bell with video surveillance is a much more complex procedure. Usually, for such purposes, a specialist is invited, who will subsequently be involved in servicing the device.

Installation and connection of the call

The complexity of connecting the bell depends on the design chosen and whether it is installed in an apartment or a private house.

Wireless call

The easiest way is to install and connect a wireless bell option, especially one that operates directly from electrical power. The kit button is mounted on the wall or on the door frame outside, next to the front door. Depending on the base material, fastening is carried out with self-tapping screws or dowels suitable for this purpose.


To do this, determine the most convenient place for the button. Then it is applied to the surface, and marking points are placed through the holes intended for fastening. Using an electric drill (perforator), holes are drilled into which dowels are driven. After that, a button is applied and screwed into which the batteries are inserted. If the button is mounted on a wooden surface, then everything turns out even simpler - only self-tapping screws.

All that remains is to plug the main unit into the outlet, which should be located in the hallway, as close as possible to the bell button.

Video: Wireless call «Legrand"

A wireless call will be the best option for installation in a private home. By installing it, you won’t have to lay wires across the entire yard. However, there are certain limitations:

  • It is necessary to select a device designed for such installation in outdoor conditions. Otherwise, the button, as well as its batteries, may quickly fail under the influence of moisture, temperature changes, etc.
  • There should be a minimum number of barriers made of concrete and metal between the bell itself and the button. These materials are capable of jamming the signal.
  • When purchasing a wireless call, you need to carefully study its technical characteristics. In the passport, the manufacturer must indicate the range of reliable signal reception. As a rule, it is 80÷100 meters, and this is quite enough for a private house. However, the model for this indicator must be selected with some margin, approximately 15÷20%. This is because other factors influencing signal quality cannot be completely excluded.

Wired call

The main difference between installing a wired bell in an apartment and installing it in a private house is the length of the cable connecting the button and the main unit.

  • If the bell is installed in an apartment, then a button is attached near the door, as in the wireless version. However, in this case it must be connected to a cable, which will have to be brought into the apartment through a hole drilled in the door frame or through the wall. In any case, the wires should not be exposed.

If it is passed from the button to a wooden box, then it is recommended to cut a fine on the section of the wall between them, and after laying the wire, seal it with putty. The main bell unit can be fixed in any selected location in the apartment. Usually this is a wall in the hallway. Inside the apartment, the cable can also be hidden in a hole. Another, simpler option is to attach a plastic box for it on the wall, a cable channel specially designed for laying wiring. These channels are convenient because they have a removable part that allows you to monitor the condition of the wire.

  • It is more difficult to install a wired bell in a private house when its button must be fixed to the gate gate. If you choose a regular electromechanical or electronic bell, then you will have to run wires from the gate to the house. They must be enclosed in a special corrugated casing-tube, which will protect the wiring from ultraviolet radiation, moisture, provide additional insulation, and fire protection. True, when choosing such a corrugation, you should immediately check in the store whether it is designed for external use. Some types are intended exclusively for indoor wiring.

If the bell is installed during the reconstruction of the local area, then the wires can be laid in and underground.


Connecting a wired call

If you decide to connect the call yourself, then for the work you need to prepare some tools, devices and materials:


  • An indicator screwdriver will be needed to determine the phase and zero of the electrical network. The principle of its operation is simple - the metal probe of the screwdriver touches the stripped end of the electrical wire. If the light on the indicator lights up (a certain signal is displayed), this means that a phase has been found. The indication does not work on the zero contact. Thus, this device allows you to both check the presence of voltage and understand the relative position of the wires.
  • You will need a regular screwdriver, and possibly pliers with insulated handles.
  • A terminal block (or spring terminals) is required to connect the wires.
  • The wires used to connect the bell must have a cross-section not exceeding 1.5 mm². A larger cross-section is not required, since the power consumption is low. It is recommended to use a wire made of the same material as the cable used in the electrical wiring of the apartment. Most often, the network is constructed from copper wire, since aluminum has a whole “heap” of disadvantages.

Which cable is optimal for wiring in a house or apartment?

This is an extremely important issue that directly affects the durability and reliability of the home electrical network and the degree of safety of living in the apartment. There should be no approaches from the standpoint of “cheaper” or “easier to install.” – read in a special publication on our portal.

Connecting a call to the network is carried out in the following order:

It is most convenient and much more accurate to carry out all the switching in the junction box. There should be enough space there, since the hallway usually does not have a large number of electrical appliances.

  • Before starting work, it is necessary to turn off the power to the apartment or house - turn off the circuit breakers on the distribution board. A 220 V electrical network can be life-threatening.
  • Now you need to open the housing of the main bell unit by unscrewing the fasteners. In models from which two wire sections come out, disassembly is not necessary. For the bell itself, it should already be secured to the wall.
  • Then you need to clean the ends of the prepared connecting sections. One segment is laid in the channel (cable channel) to the bell. The second one is extended to the location where the button is installed. They both converge in

  • It is very convenient to work if the wiring in the house is carried out in compliance with the rules for color marking of wires. The blue wire means zero. The phase can be black, red, brown, white and even other shades, but not blue or green or yellow. The green or green-yellow conductor is a protective ground loop.

If there is no color marking (this is a common occurrence in old buildings), then you will have to use an indicator in advance. However, it doesn’t hurt to check in any case - it happens that mistakes were made when installing the wiring.

  • The zero wire (blue) is directly connected through the terminal to the wire going to the bell.
  • The phase wire (red in the diagram) is connected through the terminal to the wire laid to the button. The second conductor of this cable from the button is also connected through the terminal to the second wire going to the bell.
  • Both wires of the cable coming to the button are stripped and clamped into its terminals. The button is then assembled - closed with a housing-lid and secured with a screw. Her work is finished.
  • The wires coming from the junction box to the bell are clamped into its terminals or connected to the wires coming out of its body (best not by twisting, but also using terminal connections). In most inexpensive bell models, the position of phase and zero at the input is not important. However, some electronic bells with advanced functionality specifically indicate the required conductor arrangement (“L” and “N”) on the terminals. This can be important for the correct operation of the electronic circuit. This means that switching is carried out taking into account the location of the phase and zero.

  • The presented diagram also shows the green protective grounding wire in dotted lines. It is not used often, but is still necessary if the bell body is made of metal, or if the button will be installed outdoors.

After assembling the bell body, you can turn on the power and carry out tests.

Some electricians prefer not to use terminals, but to perform twisting. This is also acceptable if special contact caps are used. But still, with terminals, installation seems more convenient, and you don’t have to worry about their reliability, since a large load from the bell is not expected.

If it is necessary to install two calls, they are connected in parallel to each other. Therefore, when you press the button, they should fire simultaneously. Installation of paired bells is most often practiced in a large private house with many rooms. Or, for example, with installation in the house itself and in one of the adjacent buildings, where the owners may most often be located. So, it could be a garage or a summer kitchen.

If the electrical installation work is carried out exactly according to the diagram, then upon completion of the installation and pressing the button, the bell will immediately work. If this does not happen, you need to turn off the power to the junction box again, and then test the circuit using a tester to find and fix the problem.

To prevent the call from becoming an irritant that spoils your mood, when purchasing it you should pay attention to some of its characteristics. Otherwise, its shortcomings can become unpleasant surprises.

The design of the button can also be matched to the design of the front door.

  • Selecting a ringtone. The cost of the device depends on the quantity and quality of melodies. Traditional calls, which have been around for many years, are often not only unpleasant to hear, but also sound scary. These options are still found in stores today, and their cost is low.

There are quite a lot of models with polyphonic melodies on sale, from which you can choose an option to suit every taste.

You should not purchase a bell with a typical, frequently encountered sound, otherwise you may have to run to the door every time guests come to one of your closest neighbors.

If you select a call with several melodies, you can change them from time to time.

  • The call will be more convenient to use if it has a volume control. Practice shows that there are models tuned “to the taste” of the manufacturer - either roaring wildly or barely audible.
  • Designer design. If the bell is chosen for an apartment, then the button for it should be modest, not attracting much attention to itself. The main block can be matched to the design of the hallway. Today we present bells whose block surfaces imitate the texture of wood, suede, stone, leather, etc.
  • If you are purchasing a wireless remote model for a private home, then before you go shopping, you should measure the distance from the gate to the house. This is necessary so that the button and the device interact reliably with each other. The characteristics of the call must indicate its range of operation.
  • It is worth purchasing a call in specialized stores - they are guaranteed to buy a quality product. It is not recommended to buy such a device by hand or in a small hardware store. As a rule, these products are of dubious quality, and the buyer will not receive any warranty on the product.
  • In addition, it is worth paying attention to such parameters as the reliability of contacts and the strength of the body of the main unit and buttons. If the button is attached to the gate, it must be protected from moisture and dust (recommended protection class is IP 44).

* * * * * * *

In conclusion, I would like to warn those home owners who are very far from electrical work and have little idea of ​​even, say, what zero and phase are. You should not take risks and do the installation yourself, as such a “bold experiment” can lead to dire consequences. Therefore, it is best to invite a professional electrician to perform this work, who will quickly cope with this simple task for him.

Electric bell

consists of an electromagnet, an armature with a striker and a cup (bell). When you press the button Z. e. direct current ( rice. ) the electromagnet power circuit is closed Uh, anchor I pulls himself up and hits the bell cup with his striker. When attracted, the armature opens the breaker contacts TO in the power supply circuit of the electromagnet and under the action of the spring P returns to its original position. The main disadvantage is the sparking of the contacts, which creates large radio interference. When powered from an alternating current network, 127-220 s.e. switched on via a transformer built into the bell body so that the voltage on the button does not exceed 12 V (according to safety requirements). Z. e. alternating current, operating on the principle of a polarized relay, have no contacts and use a change in the direction of the magnetic flux to move the striker. There are also Z. e. resonant polarized, used in election systems (for example, in telephone sets).


Great Soviet Encyclopedia. - M.: Soviet Encyclopedia. 1969-1978 .

See what “Electric bell” is in other dictionaries:

    ELECTRICAL BELL- an audible signaling device operating under the influence of direct or alternating current. The DC bell is powered by a galvanic battery with a voltage of 3-6 V (you can use a flashlight battery, which lasts for several ... Concise Encyclopedia of Housekeeping

    ELECTRICAL, electrical, electrical. 1. adj. to electricity. Electricity. Electric Energy. Electric charge. Electric discharge. || Exciting, producing electricity. Electric machine. Electrical station... ... Ushakov's Explanatory Dictionary

    electric- oh, oh. Electrique adj. 1. Rel. to electricity. Electric charge. Electric field. BAS 1. We are talking about the similarity between electrical and magnetic. 1758. Bitovt 242. The electric force, rushing from the ground into the sky, will begin to emerge. 1769. Anichkov 21. // Sl... Historical Dictionary of Gallicisms of the Russian Language

    CALL, call, husband. 1. A metal bell used for sound signals. Chairman's call. || A device for the same purpose. Electric bell. Door bell. A telephone ringing. 2. Sound signal produced by... ... Ushakov's Explanatory Dictionary

    CALL, nka, husband. 1. Device, device for sound signals. Door z. Electric z. Z. under the arc (bell or bell). 2. Sound, sound signal produced by a bell or special device. There was a sound. Classes start on... Ozhegov's Explanatory Dictionary

    It consists of a horseshoe-shaped electromagnet A (Fig. 1), against the cores of which a strip of soft iron B is placed on a spring C and an armature. The spring supporting the anchor is screwed or soldered to the post D. A rod E with a ball on ...

    electric bell- elektrinis skambutis statusas T sritis fizika atitikmenys: engl. electric bell vok. elektrische Klingel, f rus. electric bell, m pranc. sonnerie électrique, f … Fizikos terminų žodynas

    call- Rice. 1. Diagram of the non-sparking bell device and how to connect it to the network. Rice. 1. Diagram of a non-sparking bell and methods for connecting it to the network: push-button switch SB1 is inserted into winding II of electromagnet 1; b push-button switch... ... Encyclopedia "Housing"

    A lot of ingenuity and labor went into developing this simplest form of home telegraph. Among the ancients and in the Middle Ages, the door knocker was replaced by a hanging knocker, more or less elegant in shape. Those leaving the house knocked... Encyclopedic Dictionary F.A. Brockhaus and I.A. Efron

    Nka; m. 1. Metal bell; a device for producing sound signals reminiscent of the sound of a bell. Door z. Z. alarm clock. Electric z. 2. Sound, sound signal produced by a bell or special device. Sharp,... ... encyclopedic Dictionary

Electric bells are widely used by unauthorized persons when they need to enter homes and other objects. With their help, it is possible to transmit a sound signal over considerable distances. To generate a call, modern devices use an electronic circuit built either on semiconductor elements (transistors) or on modern microcircuits.

Device and principle of operation

Home bell device

The electric doorbell is designed extremely simply and consists of a limited number of parts. Its design contains the following mandatory components and components:

  • a calling button located at the front door, usually attached to the side of the jamb;
  • a ringing signal generation unit located inside the serviced facility: the entrance of an apartment building or apartment;
  • a set of wires used to connect these nodes and ensure they work together.

In modern models of electronic calls, called wireless, instead of linear cables, a radio channel is used, that is, the calling signal is transmitted over the air.

The operating principle of wired doorbells is based on the activation of an electromechanical mechanism or electronic circuit, which is supplied with a 220 Volt mains voltage when a button is pressed. Under its influence, changes occur inside the actuator that cause the formation of a calling signal. In the first case, an electromagnetic relay is activated, activating a vibrating hammer that periodically strikes the bronze cups.

In electronic models, after applying voltage and reducing it to an acceptable level, an electronic signal is generated in the circuit and sent to an acoustic transducer (speaker). For wireless ringing devices, the same process is repeated exactly, except that the control signal is transmitted over a radio channel.

Types of calls

Based on the principle of ring signal formation, a wired bell can have the following designs:

  • electromechanical calling devices;
  • electronic calls.

Electronic devices may have a volume control located on the front panel, which allows you to change the level of the signal entering the built-in speaker.

Electronic call

Differences in the operation of electronic and electromechanical samples are manifested in various mechanisms for converting and supplying a calling signal. In addition, according to the method of transmitting the information package, electronic calls are divided into wired devices and their wireless analogues (radio-controlled models). Depending on the type of signal that provides the user with information about the call, they can be audio or visual (the latter category refers to video recorders). Based on their location, all existing models of electric calling devices are divided into street and indoor calls.

Analysis of varieties of bell mechanisms and selection criteria

Module for playing the sound of a melody

Electromechanical doorbells with an impact mechanism have long been outdated and are found today only among pensioners and in rural areas. They have been replaced by electronic analogues, which do not have a single mechanical component. A wired electronic call to an apartment is made in the form of a circuit board on which elements of a generator circuit on transistors are placed, capable of reproducing sound through a speaker.

Sometimes the ring signal generator is assembled on the basis of a specialized “music” chip that generates several melodies. These calls are more preferable than the outdated electromechanical model, but in turn are inferior in ease of use to their radio-controlled counterparts. The installation of such a product will require much less time, since in this situation there is no need to lay electrical wires. However, all these benefits come at the price of high cost of wireless devices.

What is important to consider when choosing

It is possible to choose a good and reliable electric wired bell for an apartment only after all the pros and cons of the considered options have been weighed. If you need an inexpensive and easy-to-use device, it is best to choose a regular electric bell with an electronic circuit that generates several melodies. In a situation where there is no desire to tinker with the wiring or it is impossible to install it and at the same time the issue of expense does not bother the user, a radio-controlled device is considered the most suitable option.

When choosing a wireless or wired electric bell for an apartment, it is also important to consider the location of the calling button: on the street or in the entrance. In the first case, it must have a high degree of protection from destructive factors, determined by the technical IP indicator (the higher the better). It characterizes the level of its tightness, which prevents dust and moisture from penetrating inside.

The set of products installed indoors may include a calling device with a standard design with IP 20-44, for example.

Installation features

Indicator screwdriver

The procedure for installing the elements of a calling device depends on its modification and configuration, which are considered for each option separately. In any case, before starting work you will need to prepare the following tool:

  • indicator screwdriver;
  • an ordinary screwdriver;
  • side cutters - necessary for cutting off the conductor to the required length.

From the materials you need to prepare miniature adapter blocks with slots for a screwdriver and two pieces of wiring of the required length.

Wired Device Installation

Installation of the doorbell housing Zamel bim Bam

Wired doorbells are installed at their place of work in the following sequence:

  1. It is necessary to de-energize the apartment by turning off the input circuit breaker.
  2. A box with an electronic circuit is taken, from which two white conductors come out, and hung on screws screwed into the wall.
  3. It is necessary to connect one end of the wire using a miniature adapter block to a brown conductor supplied from the phase terminal of the input panel or distribution box.
  4. The second end, using the same block, is connected to a long piece of wire laid along the wall to the calling button and connected to one of its terminals.
  5. After this, from the second push-button contact, the same conductor is laid next to the first one to the zero terminal of the distribution box or switchboard.

At the final stage of work, all that remains is to turn on the introductory machine and check the call for functionality

When checking the signal chain, you need to act carefully, constantly remembering that when the button is not pressed, one of its terminals is under voltage of 220 Volts. You can check its absence or presence using the indicator screwdriver prepared earlier.

Wireless device

Wireless call with two buttons

In the case of a wireless device, the installation steps look like this:

  1. At a selected location in the apartment, a box with a receiver is mounted on the wall, powered by a battery previously installed in it.
  2. A signal transmitter, designed in the form of a panel with a button, is fixed on the jamb of the front door, which also requires a built-in battery.
  3. To test the call device, press the call button and listen to the sound signal.
  4. If there is a volume control, you need to make sure that it works properly.

If the receiving device is powered from the mains, you should connect its terminals according to the color marking: the red or brown wire to the phase contact in the distribution box, and the blue wire to the neutral terminal.

If the receiver does not function for some reason, you need to replace the batteries again in case there is a bad contact at the place where they are connected.

There is no need to turn off the electricity when connecting the battery-powered wireless bell, since it is not in use.

Doorbell connection diagram

One of the options for connecting a doorbell involves the use of two buttons located at some distance from one another. This is usually done in private houses, where the entrance to the home is located in different places for a number of reasons. An electric wired apartment bell with two buttons is mounted according to a more complex scheme. So that when each of them is pressed, the same actuator is triggered, the calling circuits are connected in parallel.

There are call schemes in which a backlight is provided on the actuator panel, which duplicates the call for people with poor hearing. To reduce the risk of electric shock, a transformer is built into modern electronic models, to which 220 Volts are supplied. From its output, safe voltage (12-36 Volts) is supplied to the power line of the call button.

  • conductors are mounted as covertly as possible, which eliminates the possibility of accidental damage to the insulation and injury to a person with a voltage of 220 Volts;
  • the bell body with call adjustment is mounted on the wall at eye level;
  • when choosing a location for it, the characteristics of a particular facility are taken into account, including the presence of a nearby switchboard.

When choosing a wireless call, it is important to remember to constantly monitor the condition of the batteries, which discharge over time.

In fact, every modern home has a doorbell that notifies the arrival of guests with its melody. The task of a simple device is to produce a loud, clearly audible sound signal when a button is pressed.

An electric wired doorbell is distinguished by the presence of various sounds and different melodies, which a person chooses at his own discretion. features and types of device, its connection to the network are discussed in the article.

Bell device

To understand the operating principle and understanding of the electric bell, you need to familiarize yourself with its main components.

These include:

  • An electric magnet used to generate a signal.
  • Hammer.
  • Anchor.
  • Specifically a bell or a cup.
  • Contacts.
  • Spring.
  • Button.
  • A battery or element responsible for supplying electricity.

features and operating principle

The operating principle of a wired electric bell is based on the proximity of the armature and electromagnet to each other.

Along with the:

  • A movable type brass contact is placed near the armature.
  • At a time when there is no electricity to the electric magnet, the contact is pressed against the screw portion connected to one terminal.
  • The other terminal is connected to the coil of the electric magnet, and its second section is connected to the armature.
  • When you press the bell button, the circuit is closed, an armature device enters the coil, which is attracted to the pole by an electric magnet.
  • The hammer then strikes the surface of the bell cup.
  • The brass contact is of a movable type, opens the circuit and moves away from the screw section.
  • The current supply through the electromagnet coil ends.
  • The electromagnet no longer attracts the armature.
  • The spring moves the armature away from the pole of the electromagnet.
  • The contact is again pressed against the screw, completing the circuit.
  • The current again begins to pass through the surface of the coil, the hammer gives a signal, and the whole process is repeated again until the button is pressed.
  • If the button responsible for the current breaker is closed, the armature invariably oscillates and the hammer strikes the cup, which produces a signal.

The main function of an electric magnet is the self-switching of the device; its presence allows you to close and open an electrical circuit.

The table shows the advantages and disadvantages of the designs:

Types of electric bells

Wired doorbells can be:

  • With electronic sound former.

The use of different integrated circuits allows vibrations of different frequencies to be applied to the speaker. In this case, melodious trills, sounds of living nature, intentionally programmed melodies or sounds, which can range from a soft hum to the reproduction of famous pieces of music, can be produced.

Along with this, the button helps to launch the circuit into action. To control the call, there is no need to supply high voltage specifically from the network to the button. It is possible to apply a voltage from 3 to 12 V, which will be sufficient to generate a signal. In this case, the wiring diagram is significantly simplified, wires of a smaller cross-section are used, and the button has a longer operating life.

Tip: When using such devices, you do not need to keep the button pressed. It is enough to press it briefly once, and the call will work, playing the entire programmed melody.

Design advantages:

  1. the ability to take a variety of sounds that replace simple ringing;
  2. volume and duration adjustment;
  3. Lack of much tension on the button.

The disadvantages may include the need to supply power to the bell.

  • Programmable wired doorbells.

To all of the above advantages, there is added the ability to select a specific melody or recording for playback by pressing a button. The simplest case is to play different melodies each time you press the button.

With more complex options, various modes are set: for security, simple, quiet. For this purpose, a switching device and a mode button for adjusting the volume are installed on the bell body.

For example: for the guard mode, at the end of playing the specified music, a loud dog bark appears, discouraging unwanted guests.

  • Self-powered designs.

In most cases, autonomous power supply is typical for wireless calls, but there are models of wired designs that operate on batteries. Their main advantage is the ability to work even in the absence of electricity, with regular replacement of power elements.

One set of batteries can last up to one year during normal operation. Such autonomous bells are mounted directly on the door. In addition, the button and bell of the device are located on different sides of it.

  • Calls with touch buttons, which do not necessarily have a mechanical system with contacts.

There are very simple circuits that give a signal to turn on the sound from the touch of a finger. In most cases, they consist of one minimum quantity and a binding transistor. The drawback of the calls is the lack of activation when touched through gloves.

  • Wired calls with voice communication.

Such systems are closer to intercoms. But there are also simple, inexpensive devices with speakers and a microphone. When a guest presses a button, it is possible to ask a question about who has arrived before opening the door.

Choosing an electric bell

Tip: Before choosing an electric wired bell, you should familiarize yourself with some recommendations.

Instructions for choosing a device suggest:

  • Contact a special store where skilled consultants provide extensive information about many types of doorbells.
  • Find out the type of electric bell for your home. Along with this, it is necessary to take into account its price, appearance, connection method, the ability to adjust the volume and the ease of installing the device with your own hands.
  • Find out the ringtone.

Advice: For a large house you need to buy a loud device so that its sound can also be heard in the most remote corners of the building.

  • Gong bells that make trumpet sounds are distinguished by their excellent design and beautiful appearance.
  • A necessary function for a call is to illuminate it at night. For this, small LEDs or luminous materials are used.

A good solution for installing a bell in a private home or country house is to purchase a wireless electric bell. One part of it is attached to the gate, and the second in the house. Using a wired bell will be inconvenient due to the high cost and installation difficulties in laying the cable.

Doorbell Installation

The soundbar and the Device Button are connected to each other by wires.

According to the type of design mechanism there are:

  • Hammer.

  • Buzzer.
  • Kolokolchikovs.

They differ in their operating principle and internal structure. Operate from mains or battery.

To connect electric wired calls you need to buy:

  • Electric drill.
  • Dowels.
  • Construction knife.
  • Electrical tape.
  • Screwdriver indicator.
  • Set of self-tapping screws.

It is possible to connect one or two buttons to the lock, for example, if there is one non-specialized vestibule for several apartments. In this case, one is placed in the vestibule, and the second on the platform in front of the door.

Along with this, there will be two parallel buttons in the device connection diagram. When you finish pressing any of them, the mechanism will close and the circuit will work.


To correctly connect the doorbell, you should first watch the video in this article.

connection diagram and cable wiring

An electric bell cannot work without electricity, which requires wiring to be installed at the place where the device is mounted. In most cases, the products require alternating current with a voltage of 220V to operate.

The cable can be two-core or two single-core. Wires with a cross-section of at least 0.5 mm? But you should not use too thick wires - the power consumed by a wired bell is small.

Tip: The wire material should be used the same as for wiring electricity throughout the house or apartment.

Different types of products have their own connection diagram. In most cases, when constructing apartment buildings, the wiring is laid under standard door devices.


When building a house independently or connecting a wired electric bell, you can choose products with any connection diagram and lay your own wiring to it. In most cases, the bell connection diagram completely correctly copies the diagram of a simple switch, the simplest of electrical circuits.

Along with the:

  • The light bulb is replaced by a sound mechanism.
  • Instead of a switch there is a button.
  • Zero is connected to the sound panel, phase is connected to the button.
  • Both elements are connected to each other, as can be seen in the photo.

  • Pressing the button closes the phase and causes the sound signal to appear.

Installing a mechanism to reproduce sound

Tip: The device operates from the mains, which requires compliance with safety rules when working with electrical appliances. You need to connect the electrical product only after the power supply has been turned off in the entire apartment.

When the doorbell is connected to voltage, its wiring and contacts in the apartment are connected. If they are very long, the wires are trimmed and the ends are trimmed with a construction knife.

  • After connecting the wires, they must be lightly squeezed with pliers, which will ensure a reliable connection and improve contact.
  • Connections are isolated.

  • The operation of the device is checked.
  • When connecting a four-wire mechanism to a two-wire wiring, the phase and zero involved in connecting the bell are determined.
  • The remaining wires are carefully connected to each other.
  • All elements are carefully isolated.
  • The operation of the call is checked.
  • The device is attached to the wall in most cases in the hallway or corridor.
  • There should be no radiators or any heating devices within a radius of approximately one and a half meters from the bell.
  • A hole is drilled in the wall at the installation site and a panel for the sound mechanism is attached with dowels and screws.
  • A hole is drilled in the door frame through which the wires pass connecting the soundbar wires and the buttons.

Installing a call button

The bell button has two contacts, one of them is spring-loaded. Pressing the button leads to contact with the second contact, the circuit is closed, and the mechanism begins to ring. When the button is released, the contacts open.

The button has two wires connected to its two contacts. The connections are carefully wrapped with electrical tape or firmly secured with terminals, which depends on the design of the device. The button itself is fixed on the wall through a wooden panel.

All wired doorbells are devices that allow you to send a signal to a person sitting behind a closed door. Which design to choose is up to anyone to decide for themselves, the main thing is that the signal is perfectly audible and has a pleasant sound.

Installation and installation of wireless security alarm devices, wireless Internet, calls free the house from cable channels and a large number of wires. Devices not connected to the mains perform the same functions as connected devices. Such devices include a wireless doorbell.

How does a wireless call work?

Wireless doorbells differ from regular ones in that the signal when a button is pressed is transmitted not through electrical circuits, but via a radio channel. The device is supplied with batteries located in the transmitter button, which is located at the entrance, and in the speaker, located indoors or on the territory. There are systems, in which the batteries are only in the button, and the speaker is connected to the mains.

Types of calls

There are a large number of call types. They differ in size, material of manufacture, and type of batteries used. Wireless calls can be classified by area of ​​application:

  • Wireless bell for the front door in an apartment building.
  • Outdoor wireless bell for a summer cottage.
  • A call designed for areas with a large territory and several entrances.

These bells may differ in mounting locations, degree of dust and moisture protection, and anti-vandal functions. Radio calls can be equipped with additional accessories that allow video surveillance and voice feedback. This helps keep an eye on visitors before they even approach the entrance.

Design features

The difference between an indoor bell and a street bell is the material of manufacture, security and mounting methods. Apartment bells are often attached simply with Velcro. This simplifies installation and dismantling. But you need to be sure that the coating at the mounting location allows this installation method and the transmitter will not fall. Otherwise, it is better to mount it with screws.

An outdoor wireless bell for a private home must be equipped with a protective visor. It will protect the transmitter from external influences, precipitation, and dust. But you need to make sure that the visor does not drown out the signal. For this type of remote calling, it is better to purchase a transmitter made of metal rather than plastic.

If there are several entrances to a site, radio bells with two or more transmitters can be used. In this case, the distance over which the radio signal must be transmitted must be taken into account. If the distance is large, you need to choose more powerful devices. The street lock must be securely attached to the gate using screws or self-tapping screws.

Additional devices

You can equip the system with a video eye, motion sensor, and intercom. Accessory devices may be included with some models or purchased separately. The installation of these devices significantly expands the possibilities of using the devices:

All these devices are quite energy-intensive, so to power the video eye it is often necessary to install an electrical network.

Advantages and disadvantages of wireless calls

To decide which electric doorbells should be installed, you need to familiarize yourself with their advantages and disadvantages. Wired doorbells are traditional and everyone knows their characteristics and features.

Advantages of wireless doorbells:

There are not many disadvantages to wireless calls. The main ones are the unreliability of fastening, especially with Velcro, and the need to change batteries. It is necessary to monitor the charge level and replace it on time. When the batteries run out, the speaker volume decreases. This is a signal that it is time to make a replacement. There are also disadvantages associated with jamming in the cold or when exposed to moisture and dust in the open air. But this is also typical for wired types of calls.

Sometimes the question arises as to why the radio bell rings spontaneously. Most often this happens when the battery is low. When used outdoors, this can happen if some contact in the microcircuit is shorted due to humidity. Interference may be the cause from cellular and other types of radio communications.

Device selection

When selecting a radio call It is worth paying attention to its characteristics. There may be the following differences:

There are a large number of different devices in stores. For any questions regarding their quality and characteristics, you can consult the seller. It is possible to select a call at home by reading the descriptions on online store websites. In any case, the choice is always up to the buyer and advice on purchasing and installation should help.