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Explore 12v Push Button Switch Functions and Applications

What is a 12v push button switch?

The 12v push button switch is a push button switch with an operating voltage of 12v. It is one of the indispensable components in low-voltage application scenarios. It uses the mechanical action of pressing the button to control the on and off of the circuit. With simple operation and diverse designs, push button switches can be found in everything from simple household gadgets to large industrial machinery and equipment.

Specifications of 12v push button switch:

Voltage: 12V

Current: 1A-10A

Size: 16mm, 19mm, 22mm, 25mm

Material: plastic, metal

Functions of various types of 12v push button switches

12v momentary push button switch: A momentary push button switch is a switch that closes the electrical contacts when pressed and resets the button when released. This type of switch only connects the circuit when the button is pressed, and the doorbell is a common momentary push button switch.

12v latching push button switch: Each time the latching push button switch is pressed, the circuit switches on and off once. Pressing the button turns on the circuit, and the circuit will not be disconnected until the next time the button is pressed. Most of the button switches that control lamps are latching.

12v waterproof push button switch: Waterproof push button switch is often used in applications such as outdoor or harsh environments. Also common in the marine industry.

12v push button start switch: Push button start switch is commonly used to start automobile engines, power tools and other equipment.

12v illuminated push button switch: Lighted push button switch is often used in dark and low-light application scenarios to provide a clear and intuitive display of the button working status.

Common malfunctions

Under normal use, the average service life of a push button switch is from 100,000 to hundreds of thousands of times. In the case of poor materials, high frequency of use, and harsh environmental conditions, the service life will be significantly reduced.

Common faults of push button switches include the following:

Poor contact of the button switch: It may be that the surface of the button has been oxidized due to time or there is dirt in the gap, or it may be that the internal spring is broken.

Corrosion of internal contacts: It may be caused by water ingress, voltage overload or short circuit inside the button.

The indicator light of the illuminated push button switch does not light up: The polarity of the indicator light may be connected incorrectly, and the power supply voltage does not meet the voltage specification of the indicator light.

In order to prevent the occurrence of faults, you first need to select a suitable push button switch, confirm that the specifications and models need to match, correctly install and use the push button switch, and regular cleaning and maintenance work is also required.


In industrial applications, 12v push button switches can be used in control panels, emergency stops and signal transmission.

Control panel: Installed on the control panel, it can be used to control and implement various functions of industrial machinery.

Emergency stop: Use the big red mushroom head push button switch (emergency stop push button switch) to provide a convenient, fast and safe way to shut down the operation of industrial machinery in an emergency.

Signal transmission: Control the circuit that sends signals through buttons to achieve convenient operation control.

In electronics and automobiles, these switches are compatible with standard low-voltage electrical systems, providing safe and effective control.

In medical or aerospace applications, these switches are more stringent with features such as accuracy and reliability and need to be customized to provide a more comprehensive solution.

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