A push button switch refers to a switch that uses a push button to drive a transmission mechanism, presses or disconnects a moving contact and a static contact, and implements circuit switching. The push button switch is a simple and widely used master appliance. In the electrical automatic control circuit, it is used to manually send out control signals to control contactors, relays, electromagnetic starters, etc.
A push button switch, also called a control button (short for button), is a low voltage electrical appliance that can be reset manually and generally automatically. The button is usually used to issue a start or stop instruction in the circuit to control the on and off of the electrical coil current of electromagnetic starters, contactors, relays and so on.
A push button switch is an electrical device that is used to switch on and off a small current circuit when it is actuated when pressed and released when reset. It is generally used in control circuits with AC and DC voltage below 440V and current less than 5A. Generally, the main circuit is not directly manipulated, and it can also be used in interconnected circuits.
In actual use, in order to prevent misoperation, the buttons are usually marked differently or painted with different colors to distinguish them. The colors are red, yellow, blue, white, black, and green. Generally red indicates operation in "stop" or "dangerous" conditions; green indicates "start" or "on". The emergency stop button must be a red mushroom head button. The button must have a metal protective retaining ring, and the retaining ring must be higher than the button cap to prevent accidental movement of the button and causing malfunction. The material of the button plate and button box for installing the button must be metal and connected to the main ground bus of the machine.
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