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Snap action switches, also known as limit switches, are electromechanical devices used to detect the presence or absence of a physical object within a specific position by providing an electrical output signal. They are commonly found in industrial machinery, computer systems, robotics, and safety systems, among many other applications.A typical snap action switch has a mechanical trip lever arm, which is located between two contacts. When an object moves into the correct position, it trips the arm, which then causes the contacts to open or close. The output can be either make or break depending on the type of switch. The most commonly used type of snap action switch is the microswitch, which is a small switch that can fit into tight areas.Snaps action switches can be used in a variety of applications, ranging from simple on/off electrical switches to more complex applications such as limit switches. Electrical limit switches are used to limit motion of an object by providing feedback when an object reaches a predetermined position. They are frequently used to control valves, motors and other machinery.Snap action switches also have the advantage of being able to handle higher voltages and current than standard switches, making them ideal for certain applications, like industrial machinery and safety devices.When selecting a snap action switch, there are several key factors to consider. These include circuit type (make & break, single pole, double pole, etc.), sensitivity, switching speed, and operating temperature. The type of circuit required depends on the application and whether the switch will need to make or break a circuit.The operating temperature of a switch is also an important consideration. Most switches are designed to operate between -30°C and +100°C, however, for certain applications, such as hazardous environments, higher temperatures may be required.Sensitivity is an important factor to consider when selecting a switch. This determines the amount of force required to cause the switch to trip. Typically, the higher the sensitivity, the greater the force required to trip the switch.Switching speed is another factor that should be taken into consideration when selecting a snap action switch. This determines how quickly the switch will actuate, or trip. Lower switching speeds can be beneficial in applications where the switch might be actuated multiple times in a short period of time.Snap action switches are highly reliable and accurate, making them an ideal choice for a variety of applications. They are capable of handling high voltages and currents, making them suitable for a range of industrial and commercial applications. Additionally, they offer fast response times and can be adjusted to accommodate different levels of force, making them suitable for a variety of control applications.

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