4. Who can say the difference between the function of the open double control switch and the single

The functional difference between the four-open single-control switch and the four-open double-control switch:

Dual-control switch means that two switches control one light.

A single-control switch means that a switch controls a light.

The four-open switch is also a four-position switch, that is, there are four switch buttons.

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.

A dual-control switch is a switch with two contacts (i.e., a pair) of normally open and normally closed at the same time.

Usually two dual-control switches are used to control a lamp or other electrical appliances, which means that there can be two switches to control the switch of electrical appliances such as lamps and lanterns, for example, turn on the switch when going downstairs and turn off the switch when you go upstairs.

If you take a traditional switch, if you want to turn off the light, you have to run downstairs to turn it off, and you can avoid this trouble by using a dual-control switch.

In addition, the dual control switch is also used to control the lamps and lanterns that need to be forcibly ignited in the emergency lighting circuit, and the two ends of the dual control switch are connected to dual power supplies, and one end is connected to the lamps, that is, a switch controls a lamp.

Functional differences: 1. Dual-control switch means that two switches control one lamp.

2. A single control switch means that a switch controls a calendar lamp.

3. The four-open switch is also a four-position switch, that is, there are four switch buttons.

With the development of society, the progress of science and technology, and the improvement of people's living standards, everyone's requirements for the convenience of the living environment are getting higher and higher. This can be seen in the home renovation. The indispensable thing in home decoration is the switch, which is usually divided into a dual-control switch and a single-control switch, and we usually don't know what the difference between the dual-control switch and the single-control switch is.

Let's introduce the difference between dual control switch and single control switch in detail.

1. The difference between dual-control switch and single-control switch

1. One of the differences between dual-control switch and single-control switch

Single-control switch panel: A lamp, you only need to use a switch, control in one place, then this switch you can use a single-control switch.

Dual-control switch panel: the same lamp, you not only want to control it in this place, but also want to control it in another place outside the disturbance, for example, you want to install a switch at the door of the bedroom to control the light, and you also want to install a switch on the side of the bedside where you sleep, you can also control the light, so that it becomes two switch panels want to control the light at the same time, then at this time, you have to use a dual-control switch, with a single-control switch panel, there is no way to achieve your purpose.

2. The second difference between dual-control switch and single-control switch

From a functional point of view, the single-control switch panel can be replaced by a dual-control switch panel, which has the function of a single-control switch, while a single-control switch cannot replace a dual-control switch. Therefore, when purchasing, if there are individual switches that are not clear whether to buy a dual-control switch or a single-control switch, then just buy a single-control switch, saving the trouble of slowing down the car and running again;

3. The third difference between dual-control switch and single-control switch

In terms of appearance, each button of the single-control switch can be connected to two wires, while each button of the dual-control switch can be connected to three wires;

4. The fourth difference between dual-control switch and single-control switch

From the point of view, the single control switch and the double control switch with the same number of buttons, the ** of the double control switch will be more expensive than the single control switch.

2. Precautions:

1. The installation switch is installed by a professional electrician to avoid electric shock accidents caused by improper operation, or the switch cannot be used or the circuit is burned.

2. The dual-control switch can be used as a single-control switch, and the single-control switch cannot be used as a dual-control switch.

The introduction of the difference between the dual control switch and the single control switch has come to an end here, and the above is the difference between the double control switch and the single control switch. I believe that after reading the introduction, you have a certain understanding of the difference between dual control switch and single control switch, and also have a certain idea of whether to install a single control switch or a double control switch when home decoration in the future. You must choose according to your own situation.

I hope that the introduction can help you and make everyone's life more convenient.

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Many people will not go to understand the types of switches, in fact, there are many kinds of switches, there are a lot of differences between single and double control, two open single control, three open and double control, today we will talk about the difference between double control switch and single control switch.

The single control switch is the simplest and most common switch we know, in the same place of switch, the double control switch is that the same electrical appliance can be switched on and off through two different positions, which is called a double control switch.

How to distinguish between a dual-control switch and a single-control switch.

1. It is difficult to find the difference between them from the front, we can see the problem from the other side, the ordinary single control switch is composed of two line columns, through a live wire and a control line, and the single control switch can control multiple electrical appliances, such as in our kitchen, we may have two lamps, we can use a single control double open to switch this lamp.

2、 There are usually 3 line posts in the double control switch, when connecting the wire, the first switch is connected to the live wire, the second switch is connected to the control line, and the other two holes are docking with the lamp, which is the double control, such as our stairs up and down, when we go upstairs and need to turn on the lights, we can turn on the lights directly downstairs, and when we get upstairs, we can turn off the power directly upstairs, so that we don't have to run up and down.

3. The ordinary dual-control switch can also be used as a single control, but the single control cannot be used as a dual-control, so you must make it clear when you buy, the use range of the dual-control switch is also very large, such as bedrooms, bathrooms, and corridors can be used to switch electrical appliances in different places.

The content of this article today introduces to you what is the difference between the single control switch and the double switch, I hope it can help you, we must be power-off in the process of installation, in case of accidents.