Air switch model selection air switch installation

2022-07-22
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Air switch is an essential switch for the safety of household electricity. When the air switch is installed incorrectly, or the air switch you buy is not suitable for the voltage in your home, or the line is connected incorrectly, it may lead to short circuit of the line and cause fire and other safety accidents. Therefore, it is very important for family safety to understand the installation of air switch, the wiring method of air switch and the selection of air switch model. If you are interested in this aspect, you might as well learn about the model selection of air switch and the installation method of air switch with me, which may be helpful to you

air switch is an essential switch for the safety of household electricity. When the air switch is installed incorrectly, or the air switch you buy is not suitable for the voltage in your home, or the line is connected incorrectly, it may lead to short circuit of the line and cause fire and other safety accidents. Therefore, it is very important for family safety to understand the installation of air switch, the wiring method of air switch and the selection of air switch model. If you are interested in this aspect, you might as well learn about the model selection of air switch and the installation method of air switch with me, which may be helpful to you

selection of air switch model

1. DZ5 series plastic shell air switches are suitable for circuits with AC 50Hz, 380V and rated current from 0.15A to 50A

2. Dz10 series molded case air switches are applicable to distribution lines with AC 50Hz, 380V or DC 220V and below, which are used to distribute electric energy and protect overload, undervoltage and short circuit of lines and power supply equipment, as well as infrequently disconnect and connect lines under normal work

3. Dz12 series molded case air switches have small volume, novel structure, excellent and reliable performance. It is mainly installed in the lighting distribution box and used for 50Hz single-phase 230V AC of hotels, apartments, high-rise buildings, squares, airports, railway stations, industrial and commercial enterprises and other units

4. Dz15 series plastic shell air switch is suitable for on-off operation in circuits with AC 50Hz, rated voltage of 380V and rated current of 63A.

5. DZ20 series plastic shell air switch is suitable for AC 50Hz, rated insulation voltage of 660V, rated voltage of 380V and below, and its rated current is 1250A

6. The four level air switch is mainly used in the three-phase five wire system with AC 50Hz, rated voltage of 400V and below, and rated current of 100 to 630A. It can ensure that the user and the power supply are completely disconnected to ensure safety, so as to solve the insurmountable disadvantage of non-zero neutral current of any other air switch

7. DZ47 series small air switches are mainly used for overload and short circuit protection of electrical lines and equipment in modern buildings as long as they are applicable to circuits with AC 50hz/60hz, rated working voltage of 240v/415v and below, and rated current of 60A

8. Scml series air switches are suitable for infrequent conversion box motor starting in circuits with AC 50Hz, 60Hz, 500V and below

9. DW10 series universal air switches are applicable to electrical lines with AC 50Hz and rated voltage up to 440V, for overload, short circuit, voltage loss protection and infrequent switching under normal conditions

10. DW15 series universal air switches are suitable for distribution networks with AC 50Hz, rated voltage up to 440V, and rated working voltage up to 1140V and 80V. They are used to distribute electric energy and protect overload, undervoltage and short circuit of power supply lines and power equipment

11. H series molded case air switches are suitable for air switches with rated current of 600A and below, AC 50Hz, rated working voltage of 690V and below, DC 230V and below, and rated current of 225A and below, which can be used as lines and infrequent switching and infrequent starting of motors respectively

12. AC30 Series modular sockets are the supporting electrical components of modular terminal combination installed in the user, and can also be installed in other complete sets of electrical boxes to plug in electrical equipment

at present, household electricity should be wired separately according to lighting circuit, power socket circuit, air conditioning circuit, and when one circuit (such as socket circuit) fails, the other circuits can still supply power normally. The socket circuit needs to be installed with leakage protection devices to prevent personal electric shock accidents caused by leakage of household appliances

installation method of air switch

1. The main switch of household distribution box can generally choose bipolar 32— 63A small air switch or disconnector

2. 10&mdash is generally used for lighting circuit; 16A small air switch

3. The socket circuit is generally 16— 20A air switch

4. Generally, 16&mdash is selected for the air conditioning circuit; 25A air switch

5. Adopt double pole or 1p+n (phase line + neutral line) air switch. When there is a short circuit or leakage fault in the line, immediately cut off the phase line and neutral line of the power supply to ensure personal safety and the safety of electrical equipment. The installation of the above air switches is for reference only. The actual power of electrical appliances in each household is different, and the specific design shall be subject to the electrician

when your air switch is a three-phase switch, you should make sure whether the incoming line is a three-phase circuit. If it is determined to be two-phase, it should be connected to the neutral line, the ground wire to the shell, and the live wire to any one. Generally, each air conditioner is divided into one circuit, the kitchen and sanitary sockets are divided into one circuit, the rest sockets can be divided into one or two circuits according to the situation, and all lighting can also be divided into one or two circuits. It is expected that 20 Amp air switch can be used for socket circuit of high-power appliances, otherwise 16 Amp air switch is enough

wiring method of air switch:

the following is an example to illustrate the wiring method of air switch. If there are three wires from the big meter to the home, red and blue, you can use an air switch with leakage protection as the main control switch (A0), and there are three ordinary air switches to control the lights (A1), air conditioners (A2) and sockets (A3) at home. From the front, there are two connection posts above A0, an N symbol is engraved on the right, and there are also two connection posts below, and an N symbol is engraved on the right; A1, A2 and A3 are the same, and there is a wiring post above and below respectively

the wiring method is as follows:

the three wires coming in from the outside are distinguished in this way: Red live wire (L), blue zero wire (n), fancy wire is ground wire (e/pe/g/gnd), and the ground wire is usually yellow and green. If you want to install indoor circuits, the wires of your indoor circuits should also use the wires of these three colors accordingly; The switch should be installed in the front, with the upper end as the incoming line and the lower end as the outgoing line. Generally, the ground wire does not enter the switch

1. Connect the indoor line

1. Mark the letter N below to connect the zero line (blue), and all indoor zero lines are connected here

2. Connect the live wire of lighting line (electric lamp) at A1 below

3. Connect the live wire shunt of Socket line at A2 below

4. Connect the hot wire shunt of the air conditioning line at A3 below

second, connect the household line (the wire coming in from the outside)

1, connect the neutral line (blue) at the top n

2, connect the live line (red) at the top L

editor's summary: the above is the relevant introduction of the air switch model selection and the installation method of the air switch. I hope to help friends with this need! For more information, please continue to follow our website. More exciting content will be presented in the follow-up

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