The master switch is a key with which you can turn off the whole light in the apartment. It looks like an ordinary wall switch and is most often installed in the corridor. Convenience is that when you leave the apartment, you do not need to check in all rooms, whether the light is turned on. It is enough just to press one button and all the lamps will go out.
This solution is suitable for apartments with any area. The workshop turns off the lighting devices, and not all electricity in the apartment. You can make sure that the button, in addition to the lamps, is de -energized and certain sockets, but this is done in rare cases.
Content:
- The main elements of the master switch
- What is better to use: a contactor or a pulsed relay?
- The principle of operation of the master switch
- Tips for the selection and installation of a master switch
The main elements of the master switch
It is important to understand that the master switch is not just a button, but a system hidden from the eyes. Its installation must be laid during the repair of the apartment at the stage of wiring electricians. If you do this later, for example, at the end of the repair, you will have to remake part of the electrician, and this is extra expenses. The system consists of the key itself, contactor or pulse relay. All elements are interconnected by wires.
Photo: The main components of the workshop
The contactor is a device that contains an electromagnet. When a person presses the key, the current stops nourishing an electromagnet inside the contactor, and the circuit opens. The current stops going to the sockets and to the light. Simply speaking, the contactor is the same switch, only more powerful.
A pulsed relay is a device that also opens the chain as the contactor. It is made on the basis of semiconductors. When a signal goes from the key, the semiconductor breaks the circuit, and electricity disappears.
Photo: The difference between the Contactor and the Impulse Relay
What is it better to use a contactor or a pulsed relay?
The contactor is more expensive than a pulsed relay. It is used in networks with increased loads. For example, when the apartment is large and there are several different types of lighting and backlight in it. In this case, the contactor is better. If not only lighting, but also sockets are connected to the master switch, also choose the contactor.
The impulse relay, unlike the contactor, is not so reliable, because semiconductors can burn out of voltage drops or deteriorate from overheating. But the impulse relay consumes less electricity and costs several times cheaper. If the apartment has only 2-3 chandeliers for 6-8 lamps or only ceiling lamps, then you can use a pulsed relay.
Photo: The difference in premises when using a contactor and a pulse relay
The principle of operation of the master switch
First make a place for the key. Usually it is installed at the front door on the right side. The button is best done at a height of 90 cm from the floor. This value can be slightly adjusted to the growth of the owner. But usually the range is 90–100 cm.
Photo: Standard key indentes
Next, the wires are pulled from the button to the electric shield in which the contactor or pulsed relay is installed. The wires from the key and from the central wire go to it. Next, the contactor is connected to the machines to which light and certain sockets are connected.
Photo: Automat for an electric shield
An automatic machine is a device that, in case of short circuit, de -energizes the network. This is an auxiliary element between the consumer and the central wire with current. They are in electrical panel.
It is precisely those machines that work with lighting and some sockets that are connected to the Contactor. The remaining machines operate in normal mode, even if the contactor stops the current.
Photo: simple workshop work scheme
For example, in this electrical, automatic machines that work with light are 1, 2, 3. They were connected to the contactor. Even in this apartment, a 4 machine gun with several sockets in a dressing room was connected to the contactor. Thus, when you press the master switch, you can not worry that the included iron in the outlet remained in the dressing room. The button will be de -energized.
The master clavis in this scheme turns off the light and sockets in the dressing room. The remaining sockets work as usual.
Photo: Electric shield with machine guns and contactor
Tips for the selection and installation of a master switch
The only inconvenience faced by the owners of the master switch is faced with the fact that it is often confused with other keys. For example, instead of turning on the light in the corridor, the whole light in the apartment turns off.
Photo: Master switch in the interior of a three-room apartment 102 m2
To prevent this from happening, a master button can be made of a different shape, color or design. So it will differ from the rest of the keys.
Photo: Types of wall switches
Conclusion
A master of a cover is a convenient system that allows you to turn off all the light in the apartment. It controls lighting and several sockets, and not the whole electrician in the apartment.
The button is relevant for large apartments, because before leaving the house you can not check each room for the light of the light. No need to take off and go into the room if the light remained somewhere to burn.
The master button consists of the key, contactor or pulse relay itself. It is better to use the contactor – it withstands heavy loads, unlike the relay.
The master switch needs to be planned at the stage of electricity wiring. It stands in the region of 8-10 thousand rubles along with work and material.
The master class needs to be chosen so that it differs from the rest of the keys in the corridor.
