In our time, the use of a double switch is widespread. Indeed, with the help of this technology, you can use a beautiful chandelier with several light bulbs or spotlights, which is undoubtedly very convenient when adjusting the optimal lighting.
The double switch connection diagram allows you to control two groups of light bulbs to illuminate the area. Accordingly, the work of each group is regulated by a key specially assigned to it. The maximum number of bulbs in each group can reach 8, although it is possible to organize the operation of even more, it all depends on the ingenuity and wiring diagram. Consider it in more detail.
The junction box includes two wires, red and blue. The first is the phase, and the second is zero. The red wire connects to the wire of the same color in the junction box, and then goes to the common node of the double switch, from which, in turn, yellow and orange come out.
The ultimate goal of the yellow cable is to reach the first grouplight bulbs, and orange - respectively, on the second. They are responsible for the regulation of all lighting. It turns out that the connection diagram of a double switch is quite simple and easy to understand. The blue cord (zero) completes the picture, which is always connected to all groups of fixtures, unlike other wires, with which the switch coordinates only the phases of the groups. All these features prove once again the practicality of the double switch.
There are two technologies for connecting wires to switches: self-clamping terminals and clamps using screws. The first method is more progressive and convenient, since the fastening does not weaken over time. Screw clamps also have to be periodically tightened, because the tightening screw tends to gradually move away.
The sum of all the cables in the junction box is eight: two from the electrical panel, three outputs to the switch and three to the light bulbs. However, there may be cases when the number of wires is even greater, for example, when the lamps are located in different places - the corridor and the bedroom. The neutral wire must be connected everywhere, which means that with this placement it is twice as large.
The considered connection diagram of a double switch is presented with a TN-C earthing system. It may vary in type, and may also be presented in TN-S or TN-C-S mode. These types are designed to create additional electrical safety.
In turn, the switches themselves, there is a large selection. The device can once again emphasize the individuality of the owner. They differ in design, color, can be backlit, switch without noise, etc.
For direct installation, be sure to turn off the electricity, prepare the wires, shortening them by 10 cm, connect to the switch. Next, you need to place and secure the switch in the installation box. The last step of the whole process will be the placement of the frame.
The double switch connection diagram is quite simple and very convenient to use. It allows you to adjust two groups of lights, which can contain several bulbs.
