(1) Protective button(push button switch): a button with protective shell, which can prevent the internal button parts from mechanical damage or people from touching the live part. Its code is h.
(2) Dynamic off button(push button switch): under normal conditions, the switch contact is a button for on.
(3) Dynamic closing button(push button switch): under normal conditions, the switch contact is a button that is disconnected.
(4) Dynamic on-off button(push button switch): under normal conditions, the switch contact has both on and off buttons.
(5) Button with light: the button is equipped with signal light, which is not only used to issue operation command, but also used as signal indication, and its code is d.
(6) Action click button: that is, click the button with the mouse.
(7) Explosion proof button: a button that can be used in places containing explosive gas and dust without causing explosion. Its code is B.
(8) Anti corrosion button: it can prevent the invasion of chemical corrosive gas, and its code is f.
Sine wave inverter is a kind of inverter, it is the DC electric energy (power battery, battery) into alternating current (generally 220V, 50Hz sine wave) power electronic device. Inverter and ACDC converter are the opposite process. ACDC converter or power adapter will be 220V AC rectifier into direct current to use, and the inverter has […]
Working principle of the push button switchThe operating force of the key switch is related to the state of the reed. The starting force is directly proportional to the compression distance of the reed. When the reed is compressed to 5% – 70%, the operating force suddenly decreases, accompanied by a “ticking” sound. There are generally […]
Factors of choosing normally closed contacts for emergency stop buttonsThe emergency stop button contacts on electrical equipment are either normally open contacts or normally closed contacts. Therefore, people often ask whether the emergency stop button uses a normally closed contact or whether it uses a normally open contact. The factors are as follows:1. From the moment […]
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