How to connect the single switch and how to connect the double switch?

1. The single-link double-control switch is actually two single-pole double-throw switches connected in series and then connected to the circuit. Each SPDT switch has three terminals, one with two contacts and one knife. The single-connection and dual-control switch has three terminals, one is the incoming end of the live wire, and the other two are the outgoing end of the live wire, that is, two live wires are set between the two switches.

2. There are a total of 2 binding posts on the switch, one is connected to the live wire, and the other is connected to the wire that goes to and so on.

3. The two contacts of the two single-pole double-throw switches are connected respectively, that is, the contact 1 of the switch 1 is connected with the contact 1 of the switch 2, the contact 2 of the switch 1 is connected to the contact 2 of the switch 2, and then the knives of the two switches are connected to the two ends of the lamp as the two ends of the whole switch. In this way, when the knives of switch 1 and 2 are connected to their respective contacts 1 at the same time or to contact 2 at the same time, the circuit is turned on and the lights are on. If one of the knives of the two switches hits contact 1 and the other hits contact 2, the circuit is not working, and the light is off.

Therefore, both switches can control the light. The two switches can be placed at the upper and lower ends of the staircase, or at both ends of the corridor, so that the lights can be turned on before entering the corridor, and the lights can be turned off at the other end after passing through the corridor, which can not only illuminate, but also avoid wasting electricity without turning off the lights when people walk.

How is the single switch wired? How do you compact a strand of wire? What are the requirements?

To put it simply, cut the line of fire, cut the back with two heads? Connect this connection to the two terminals of the switch, so you should understand a little better.

Connect in tandem to the line of fire.

One end of the switch is connected to a live wire, and the other end is connected to one terminal of an electrical appliance.

The wiring method of the double-open and double-control switch is as follows:

Materials: Screwdriver, oblique pliers, double control switch, lighting, wires, insulating tape are specifically introduced to take two double control switches and one floodlight respectively. Dual-control switch terminals are generally marked with "L", "L1", "L2".

When the L end enters the line, one end of L1 and L2 is connected to L. After pressing the switch, the other ends of L1 and L2 are connected to L.

2 Strip the wire with diagonal pliers first, being careful not to leave too long a head so as not to touch it.

3 Take the L of the left switch as the live wire input, the L1 and L2 of the two switches correspond to the wiring, then connect the L of the right switch to one end of the floodlight, and then connect the other end of the floodlight to the neutral wire.

4 After connecting the wires, pay attention to wrap the wires on both sides of the floodlight with insulating tape to prevent leakage.

5. Finally, reserve the live wire and neutral plug to complete the wiring of the entire dual control switch.

6 In order to facilitate wiring, you can remember the circuit diagram of the dual control switch, so that it can be easily routed during actual operation.

Connection and precautions of duplex switch.

There are generally two ways to connect the duplex switch, one is the traditional safety connection method, one of the duplex wires must be directly connected to the middle and indirect wire ends of the two duplex switches, and both switches are connected to the live wire; The other is the wire saving method, although it can save the wire, but the safety hazard is very large, and it is easy to cause a short circuit.

In order to prevent potential safety hazards in daily maintenance, it is best to use two-color wires for wiring cables to distinguish between live wires and neutral wires. Generally, the live wire uses red insulating cables, and the neutral wire uses cables of other colors of insulating skin, which need to be paid attention to when purchasing cables. The switch is to be installed in the live line, and cannot be installed casually, otherwise there is a risk of electric shock.

Therefore, before installing the line, it is necessary to check the power cord of the house with an electric pen to confirm the live wire and the neutral line. After the wiring is completed, be sure to seal the wire hinges with insulating electrical tape to prevent short circuit and electric shock. At this point, the dual-control light line is installed.

The duplex switch is connected by different terminals to achieve different effects, and the functions and connections of each terminal must be distinguished when wiring.

The duplex switch is used to control a lamp in two places (places). It has three contacts, one static and two moving. The first switch connects the power phase (fire) wire to the static contact, and the other switch connects the load (lamp) phase (fire) wire to the static contact, and then connects the two moving contacts of the two switches with two wires, and the neutral wire is directly connected to the lamp connector from the power supply.

I have seen two kinds of duplex switch binding posts: one is the upper two together, the lower one is the common end (you said it should be like this), the other is the middle for the common end, the upper and lower two binding posts, to tell you a simple connection, the common termination is connected to one end of the bulb, the other end of the bulb is connected to the other common end, two together are a live wire, one is connected to the neutral wire, and the other switch is also like this. No problem, I'm an electronics major.

The second type of switch is connected to the common end in the middle.

How to wire the duplex switch correctly? Such a simple knowledge, no need to ask an electrician, a little bit of thoroughness.

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I believe that everyone is familiar with the single-gang switch, which is more common in home decoration. As we all know, switch wiring is very important and closely related to our later use. So how to wire the single switch? How to choose a single switch? Let's learn it now.

1. How to wire the single-gang switch.

First, use a screwdriver to open the surface of the single switch, and then connect the wires in the switch bottom box to the corresponding binding posts. There are two binding posts on the single control switch, where L is connected to the live wire, and L1 is connected to the power return line; Then fix the matching screws to fix the single control switch on the bottom box. Finally, the single-control switch panel is fixed on the middle plate, and the wiring of the single-gang switch is completed.

Second, the purchase skills of the single control switch.

It is recommended to choose PC plastic switch panel, which has excellent hardness, toughness, finish, and good flame retardant performance, and has a service life of more than 10 years; The conductor material is also very critical, and the high-grade switch panel is made of tin phosphor bronze, which has good conductivity and elasticity; Try it again to see how it feels, the high-quality switch buttons have a crisp sound and a good feel to the hand.

3. How to maintain the single-control switch.

1.Although the high-quality single-control switch has been strictly tested, in order to make its service life longer, it is best not to press the switch frequently, because when the single-control switch is turned off, a large starting current will be generated, which will invisibly increase the current volume and cause the wear of the single-control switch.

2. When installing the single control switch, it is best to ask a professional electrician to be more reliable, if you install it yourself, there may be potential safety hazards.

3. When the single control switch is stained, it may be difficult to wipe off, it is recommended to use a rag dipped in alcohol to scrub, because the surface of the single control switch is relatively smooth, wiping with water will inevitably leave traces, and will cause certain harm to the person.

Conclusion: The relevant knowledge of single-gang switch will be introduced to you here, I hope it will be helpful to you. If you want to know more about it, please continue to pay attention to Qeeka Home information platform.

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The same letter is a group, 1 in 2 out, generally speaking, a live wire comes in to connect a 1, so 1 is shorted, and the wiring from 2 to the corresponding electrical equipment.

The holes marked L1, L2, L3 in the switch terminal blocks are common termination live wires. The terminal block is marked with L11, L12 hole to connect 1 lamp head wire (two holes are connected to one at will). The holes marked L21 and L22 are connected to the control line of 2 lamps (any one of the two holes).

The holes marked with L31 and L32 are connected to the control line of 3 lamps (two holes are any one). The neutral line of the three lamps and the neutral line of the power supply are connected in parallel.

Single-control switch is the most common in the home circuit, that is, a switch controls one or more electrical appliances, and can be divided into various forms such as single-control single-link, single-control double-link, single-control triple, single-control quadruple and so on according to the number of connected electrical appliances. For example, if the kitchen uses a single-control single-link switch, a switch controls a group of lighting lights and may install three spotlights in the living room, so it can be controlled by a single-control three-link switch.