Because of the continuous development of society and science and technology, there are many different kinds of widgets such as switches. Different shapes, different styles, different functions, air switch is not an ordinary switch! What is an air switch ? Air switch is also called air circuit breaker. As long as the current in the circuit exceeds the constant current, the air switch will automatically open the switch. The function of the air switch is to protect the circuit from being burned due to excessive current. Because air is used as an arc extinguishing medium, it is called an air switch. In order to ensure the safety of electricity, air switches have generally been found in every family. Although we are all using it and even see it every day, I don’t think everyone may know what the air switch is . What is the air switch? Which model of the air switch? Here we go together to understand the relevant knowledge of the air switch! What is an air switch The air switch is also called an air circuit breaker. This is a tool to prevent the occurrence of a fire accident caused by a short circuit, sudden power failure, etc., in everyday life. It is simply a tool to deal with a short circuit. The working principle is that when the current of the normal load is less than the short-circuit current, the release of the release is caused, and under the action of the spring, the movable contact will produce a separate phenomenon in the static contact, so as to achieve the effect of the circuit disconnection, which is also sufficient. Ensure the safety of electricity in our daily life. Air switch working principle The basic principle of the air switch work is that the short circuit current is much larger than the normal load current, the short circuit current causes the release to trip, and the movable contact is separated from the static contact by the spring, so that the circuit is disconnected. As for short-circuit power. How the flow trips the trip unit, generally in the following three ways. 1. Principle of thermal motion The so-called thermal dynamic principle is that when the line is subjected to a general overload, the overload current can cause the heat element to generate heat, and the heat will deform the bimetal to cause the release to trip, thereby breaking the circuit. 2. Electromagnetic principle The so-called electromagnetic principle is that when the load current is passed through the coil, the attraction force of the electromagnet is small. When the short-circuit current is passed, the suction force is enough to cause the armature to move, and the trip unit is triggered to trip. 3. Duplicate tripping principle In general, a bimetal is used. When the circuit is overloaded for a certain period of time, the heat will deform the bimetal and cause the trip unit to trip, thereby breaking the circuit. Air switch model The air switches sold in the market often have product models with subtitles and numbers. For example, the DZ47-63 is a small air switch DZ is the abbreviation for the two-way breaker circuit breaker, and 47 represents the design of the air switch. , 63 represents the rated current of the shell frame, this small air switch is used for rated voltage up to 400V, mainly used for AC at 50Hz/60Hz, when the current in your home reaches 63A, the electrical circuit and equipment The short-circuit protection can be used as the infrequent conversion of the circuit. These small air switches are classified into C-type and D-type, and the types used in different circuit systems are different. Still referring to the DZ 47-63 as an example of this air switch, the product classification of the air switch is mainly classified according to the rated current, classified according to the number of poles, classified according to the rated working voltage, and classified according to the instantaneous tripping current, as detailed below: 1. According to the rated current classification, the miniature air switch DZ47-63 can be divided into 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A. 2, according to the number of poles it can be divided into unipolar air switch, two-pole air switch, three-pole air switch, four-pole air switch, which is what we usually say 1P, 2P, 3P, 4P. 3, according to the rated operating voltage points, can also be divided into unipolar, bipolar, triode, quadrupole, in which unipolar is 230V/400V, quadrupole 400V. 4, according to the instantaneous trip current classification, it can be divided into C type, D type Use of air switch The main function of the air switch is: Under normal conditions, the overcurrent release is in the release state; when a serious overload or short circuit fault occurs, the coil in series with the main circuit will generate electromagnetic force to attract Xi'an iron. The top unlocking hook is the main contact opening. The air switch avoids the occurrence of safety accidents and effectively protects the people's personal safety. The composition of the air switch The air switch is mainly composed of the following components: undervoltage release, release release, alarm contact, auxiliary contact, rotary operating handle, electric operating mechanism, extension handle, handle locking device. Air switch purchase Care must be taken when choosing an air switch, as it relates to safety issues. Buy air switch first look at the brand, good brand quality has a certain degree of protection; then look at the size of the air switch's rated power, does not meet the production specifications can not be bought; air switch purchase can not be cheap, cheap general No good goods. Editor's summary: The above is what the air switch, air switch working principle related to the introduction, hoping to help meet the needs of friends! Through the above introduction, I believe that everyone has a general understanding of the working principle and model of the air switch. When purchasing an air switch, you must purchase it according to your actual situation. Power Air Switch Home Air Switch Automatic Air Switch Decoration Air Switch Air Switch Circuit Breaker Welded Gabions,Welded Gabion Mesh,Welded Gabion Wall,Welded Wire Gabion ANPING HONGYU WIREMESH CO.,LTD , https://www.hongyu-wiremesh.com
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