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Snap action switches, also known as limit switches, are some of the most common type of contactors used in industries and electronics applications. These switches are so named because they mechanically snap into a closed or open position when contact is made between the two parts of the switch.

The primary function of a snap action contactor is to act as an electrical switch that can be opened or closed to control electricity in a circuit. This is achieved when an external force, such as a pressure or a mechanical actuator, causes the switch to move into either the opened or closed position. This action breaks or makes contact with the contacts inside the switch and turns the circuit off or on.

There are several types of snap action contactors, each with its own specific application. The most common type is the single-pole, single-throw switch which is the simplest type of switch. This type of switch is usually used for either low or medium voltage applications and is designed to open when a specified tension is applied, such as a hand-operated lever or push-button.

Another type of switch is the double-pole, double-throw switch, which can be used for higher voltage applications. This type of switch has two poles, each of which can be opened and closed independently. Because of its ability to control two circuits at once, it is a very versatile type of switch and can be used in a variety of applications.

The most versatile type of switch is the multipole switch, which has three or more poles that can open and close independently. This type of switch can control multiple circuits at the same time, making it ideal for applications where more than one circuit needs to be controlled.

Snap action switches also have a wide range of applications in the automotive industry. In some cars, they are used to control the door locks, airbags and other safety systems. They are also used to control the fuel pumps, headlamps and exhaust systems in many cars, as well as the engine management and ignition systems.

Some applications for snap action switches are also used in robotics and automation. Many robots and automated machines use these switches to help control the movement of the robot or machine as well as its functions. These switches are also used in industrial processes such as packaging, production line control and medical device manufacturing.

No matter what the application, snap action contactors are one of the most reliable and resilient types of switches available. They are extremely durable and can withstand the harshest environments, making them an ideal choice for use in industries and electronics applications.

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