How to connect the LED switch: circuit device backlit

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To perform the basic electrical work is not necessarily cause a master. Knowing how to connect the LED switch, can independently carry out its installation. Agree, this skill is especially useful if have to repair and upgrade the wiring.

We will talk about the wiring diagram, the installation method and the difficulties that may arise during installation. You will also be able to improve their own hands an ordinary switch, making it light.

The content of the article:

  • How does and works with lighting switch
  • The use of the LED switch
  • How to choose a LED switch
  • How to carry out installation
    • Preparation for the installation and the required safety measures
    • Installation example 2-illuminated pushbutton
  • Why energy saving lamps are flashing
  • How to combine the lamp and switch
  • Illuminated power switch with his own hands
  • Switch on indicator
  • Conclusions and useful videos on the topic

How does and works with lighting switch

Construct switch LED will describe an example dvuhklavishnogo device backlit.

The mechanism consists of the following elements:

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  • one input, two output terminals;
  • current-limiting resistor;
  • the movable contacts.

The design also includes a housing, a decorative lining panel and keys.

The circuit breaker of LED devices

Some models of switches with illumination have a ready mechanism to connect the backlight. Available also models in which the backlight wires need to be connected to the terminals independently

On opening the switch contacts of the LED current flowing on the phase wire, supplied to a resistor, then the LED or neon lamp. Further, the voltage passes through the illumination unit and exits through zero.

Since the illumination lamp is connected through a current limiting resistor, the voltage on the network is reduced and it suffices to illuminate, but not enough for chandeliers.

Wiring diagram of the LED switch

According to this scheme works LED switch. If the illuminating lamp burns out or unscrew it, then the circuit will be open, and the illumination device will not operate (+)

After the circuit breaker contacts current which always moves the chain with the least resistance, flows through a network feed lamp lighting - in this circuit voltage substantially equal to zero. And current is supplied to the backlight chain, but it is so small that it is insufficient even for a neon lamp.

switches circuit with LED and neon lamp

The circuit includes a current limiting resistor and a neon lamp or LED. The remaining structure and method of connection are the same as that of the conventional apparatus (+)

The use of the LED switch

Equipped with a backlit switch set where even in the daytime dark, and the constant use of the lighting unit is inappropriate. It is used in areas to which access is required during the night.

One- and dvuhklavishny illuminated switch

Switch with LED backlight, as well as usual, or may be a solid body composed of one, two or more keys

The more light sources, the greater the need to key in the switch. Lighting control, consisting of more than three light fixtures, use patterned switches, which are installed in a row.

Lighting control from multiple locations become special pass switch backlit.

How to choose a LED switch

Buying LED switch there is no need to chase the expensive ceramic devices, since the power consumption of lighting devices generally are not very big.

Under the conditions of domestic use will be sufficient to use high-quality plastic switch with LED reliable contact group. Resource such devices - about 40 000 operating cycles.

Illuminated power switch and controlled by a key card

For hotel rooms using switches with illumination, which is controlled by a key card. They can be delayed off time or without

Also selects, based on the device design, incorporating type - produce keyboard and rotary, push button, touch and Cord.

By way of installation distinguish internal and external devices. Different materials may also be the case - using plastic, glass, copper, stainless steel, and slate is used as a decorative coating, gilding and even skin.

But what you really need to pay attention, so it's on protection class (IP) - he points to the possibility of using the equipment in different conditions.

For example:

  1. IP class 20 It indicates that the device is poorly protected from dust and moisture. Such equipment is used in residential premises.
  2. Class IP 45 and higher used for marking switches suitable for connecting a high-humidity areas - baths, saunas, kitchens, toilets, etc...
  3. Class IP 65 It means that the switch can be used on the street. Such electrical equipment has increased protection from dust and moisture. Installed outside the building - under the porch, shed, on the covered veranda. Has a more massive keys, and in the place of the input electric wire rubber seal.

The higher the class, the more protected the instrument from external factors. This applies not only switches, but also outlets, toggle switches, the rest of the electrical equipment.

How to carry out installation

The mechanism of the switch with illumination presupposes the existence of a small lamp, which lights up when it is turned off. To illuminate the device can be used by a small neon lamp or LED, together with the resistance element. From backlight pull wire to be connected to the power supply during installation.

Preparation for the installation and the required safety measures

Without basic knowledge of safety is better not to start working with electrical equipment. An illiterate wiring can lead to electric shock, breakdown of appliances, occurrence of fire.

The basic rules of conduct when working with electricity:

  • all work must be carried out in a dead network;
  • unacceptable to overload the grid;
  • check the wiring code compliance to the network to be connected;
  • the damaged section of the network should be replaced rather than repaired;
  • Do not touch the connected equipment with wet hands.

Determine the nature of conductors - where zero, and where the phase - to help ordinary screwdriver indicator or multimeter. Indicator sufficient if the single phase mains supply. For three-phase analysis using a multimeter.

multimeter

Raised one of the tentacles of the meter to the phase, the other is fixed to any one of the conductors. Expose range for AC 220 watts. Zero contact will show a value of about 220 watts, grounding - always below

Installation example 2-illuminated pushbutton

Key structural differences between the LED switches - in the mechanism of the backlight. He may be ready to use and does not require any action to connect it. In another type of construction is necessary to connect the wires that feed the LED or neon light.

Consider the more complicated embodiment - connecting device with backlight, wherein the conductors must be connected independently.

LED illumination switch open wires

Design feature, in which there is free access to wired lighting, can be useful if you need to disable it

In the first place to hook the keys with a screwdriver or other suitable tool and remove them. Separate the core (internal mechanism) of the housing.

Next, determine the correct position of the switch, using the indicator. For this purpose, via a contact touch screwdriver with one hand and on the other indicator, check the device on or off.

If the LED lights up - so on. In this state, turning it so that the button is pressed side is on top.

Using screwdriver indicator

To an ordinary screwdriver indicator to work, you need to keep it properly - the metal part must touch the contact plate, and to touch the top of the thumb

One of the wires from the indicator connected to the input terminal and a second terminal connected to the key. If multiple keys, the wire connected to the first one, starting from the left. Simultaneously with the wire coming from the indicator to the input terminal, and the phase conductor is connected.

Two diverters phase wires that go to a chandelier, is connected to the output terminals together with the second wire illumination, making sure not fallen out of the contact.

With this method of connection lights will be activated after contact with the first key. The second no effect will not have to turn off the backlight, and the light will be lit even when the lighting conditions.

To indicator light died out by pressing any of the keys, it is necessary to make their own bridge, which will connect the indicator with the two keys.

If you do not take into account the connection backlight assembly passes as in a conventional device. Across raspayachnuyu box the switch lead phase conductor and it is connected to the input terminal L, setting the stage for its screwing into the hole and a screw.

Next, the contacts L1 and L2 two diverting device is connected phase conductors, which lead to a chandelier as through a junction box. One of them is connected to a lamp, and the other to the other two. Zero raspayachny passes through node in the mounting box, followed by all the lamp chandeliers, closing the contact.

Connecting dvuhklavishnogo switch

As a result, the correct connection of the first key will include a single lamp, the second two, and two included keys lead to the revitalization of the entire lighting device. In the off state should be lit. LED (+)

Why energy saving lamps are flashing

LED switch is not compatible with the work energy-saving lamps. Device conflict manifests itself in the short-term flicker occasionally lamp in the off state or the so-called glow mode, the lamp does not turn off completely, and barely illuminated.

Glow lamp combustion mode

Time span LED or energy-saving lamps in the wrong mode is reduced significantly and ranges from one to two months

This occurs because there is an electronic transducer (condenser) inside the fluorescent lamp, which gradually recharged from the current flowing through the backlight lamp flashes.

A similar phenomenon occurs with power supplies LED strips, which also has a capacitor, and which is fed by a small current flowing from the switch with backlight.

Manufacturers of energy saving lamps indicate that the use of their products is not compatible with the use of LED switches and dimmers.

You can work around this limitation, if the control operation of the lighting device using a relay. From the switch command is sent first to the relay, which is already directly manages lighting.

The relay is produced by many manufacturers of electrical products: schneider Electric, ABB, Siemens. You can put it under the cap chandeliers, behind the cornice, which is set LED strip.

You can apply one solution to the problem - to turn off the neon lamp or LED on the power supply. This can be done by disconnecting the wires from the terminals backlight. But then the LED switch will lose their benefits.

Consider solutions that still allow to combine lighting and the use of energy-saving lamps.

How to combine the lamp and switch

If after turning off the fluorescent lamp flashes or poorly lit, the problem can be solved by connecting the parallel point light additional resistance (resistor or capacitor).

This requires the resistor of 50 ohms and a power of 2 watts. It will absorb the excess current for backlight and will not charge the capacitor of the lamp.

The layout of the resistor

Resistor placed in the terminal boxes in the ceiling of the chandelier or cartridge, previously connected to two insulated wires and bare spots. For insulation you can use heat-shrink tube (+)

Such a method of removing the cause of the flashing energy-saving lamps is considered to be very dangerous and experienced electricians are not advised to use it without sufficient skills in carrying out electrical work.

It is better to use ready-protection unit for fluorescent and LED bulbs, which eliminates flicker, protect against power surges, eliminates the interference coming from the lamps. His connection is necessary if used with light switch.

Protective unit GRANITE BZ-300-N - 300 W

Maximum wattage using GRANITE unit BZ-300-L - 300 watts. Protection operates at a voltage network 275-300 W

Protective unit connected in parallel to the lamps, which do not work properly - a faint light flickering or off. Place it in the lamp housing or glass chandeliers.

The scheme of connection of the block

When using lighting devices with two or more lighting groups in each of the groups establish separate unit (+)

Popular solutions of problems and faults LED bulbs are detailed in these articles:

  1. Why LED lamps are switched off switch: causes and solutions
  2. Why blinking LED lights: + troubleshoot how to fix
  3. Repair of LED lamps with your hands: the causes of breakdowns, when and how you can fix yourself

Illuminated power switch with his own hands

In the operation of electrical equipment sometimes it turns out that in some of the rooms would be nice to have a switch light. This does not necessarily buy the device - you can improve your own old.

What you will need:

  • conventional circuit breaker;
  • LED with any characteristics;
  • Resistor 470 ohms;
  • 0.25 W diode;
  • the wire;
  • soldering;
  • drill.

With the help of a soldering iron begin collecting scheme. The cathode of the diode (marked black stripe) is connected to the anode of the LED (near the anode leg longer). The resistor is soldered to the positive terminal of the LED and to the wire, which will serve as a connection to the switch. The second wire is connected to the cathode of the LED.

Wiring plan Switch on the LED and registore

If the hand is not suitable power resistor, or not enough space to accommodate, it can be replaced by two smaller power resistors performing their serial connection (+)

Next is connected to all the on-off mechanism. The phase conductor which leads to the lamp, connected to the terminal together with one of the wires leading to the LED. Another wiring connected to the input terminal together with a phase conductor which delivers current from the mains.

It is necessary to carefully insulate the exposed portions of the wires and conductors to avoid contact to the body, it is especially important to do if it is metal.

Check the switch wiring diagram with light on the performance of this: the key, closing contact leads to a chandelier or lighting up the lamp, the lamp lights off LED. If the scheme is working properly, you can install the device in the body.

To be seen lighting the lamp output of the LED in the drill hole at the top of the housing. This is not necessary if the housing light - the light will break through it.

Wiring diagram for the switch on the neon bulb

Light switch can be performed using a neon lamp. The circuit uses a discharge lamp HG1 and resisted any type denomination of 0.5-1.0 megohms with a power greater than 0.25 W (+)

Switch on indicator

Switches with LED indicators different from a completely different use of the principle - a lamp lights up in them when lighting is enabled. The primary purpose of a control lamp - signal the lights on in the basement, the attic, in the pantry or on the street.

It is used to control energy consumption. The indicator can be set for each of the keys or only one of them.

The circuit connection and operation switch with backlight function is built on the following principle. The control lamp is connected in parallel to the terminals of the switch. When the circuit is closed, current flows through the lamp and the lighting device - both of light. If the switch is off, the current does not flow to any indicator or the lamp.

The circuit breaker with the indicator

Display included lighting may be performed in combination: indicator lamp 1 on one button or one for each lamp button (+)

Conclusions and useful videos on the topic

Instructions for connecting the LED switch:

How to install lighting your own hands:

What if saving lamps are lit or flashing after shutdown:

Illuminated power switch can participate in almost all schemes of electric lighting. But for its correct installation it is necessary to study the structure, working principle and the nuances that arise in conjunction with other electrical equipment.

Share your experience with the readers of the connection of the LED switch. Please leave comments, ask questions on the subject of the article and participate in the discussions - the feedback form located below.

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