(9) Waterproof button（push button switch): with sealed shell, it can prevent rainwater intrusion. Its code is s.
(10) Emergency button(push button switch): a large red mushroom button head protrudes outside, which can be used as a button to cut off the power supply in case of emergency. Its code is j or m.
(11) Open button(push button switch): a button that can be embedded and fixed on the panel of switch board, control cabinet or console. Its code is K.
(12) Interlocking button: a button with multiple contacts interlocked with each other. Its code is C.
(13) Knob type button: a button that rotates the operating contact with the handle. It has two positions of on and off. It is generally panel mounted, and its code is X.
(14) Key button: a button that can be operated by inserting and rotating the key to prevent misoperation or operated by a specially assigned person. Its code is y.
(15) Self supporting button: a button with self-supporting electromagnetic mechanism in the button, whose code is Z.
(16) Combined button: a button with multiple button combinations. Its code is e.
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 […]
Inductive proximity switch sensor is a low cost method for non-contact detection of metal objects. When metal objects move towards or out of the proximity switch, the signal will automatically change, so as to achieve the purpose of detection. Its composition is mainly composed of three parts: amplifier output circuit, switching circuit, oscillator.An oscillator, one of […]
Today we continue to talk about Common Metal Push Button Switch types and application fields. 3. Knob gear switch, which is to control the circuit by rotating the knob, generally has two and three gears; when the knob is in the initial position, the circuit is powered off and the switch indicator light goes out; after the knob […]
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