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Snap Action, Limit Switches

Snap action switches are widely used in a variety of applications, from elevators and braking systems to appliances, consumer electronics, and consumer products. Three main types of snap action switches are available, they are limit, toggle and micro switches.

Limit Switches

Limit switches are used in various applications including machine control, factory automation, medical equipment, and consumer electronics. Limit switches are designed to automatically detect the position of a door or other movable machine part and control the machine functions accordingly. In most cases, the limit switch uses a moveable metal contact to detect when an object comes into contact with it. When the metal detect comes into contact with the moving part, the switch closes to activate the machine function.

Working Principle

The specific working principle of limit switches varies slightly based on the type of switch and its design. Generally, the limit switch has a metal contact that is attached to the switch body via a spring. When the metal contact is pressed by the moving object, it applies pressure on the spring and the switch is closed. When the object is not in contact with the switch, the metal contact is withdrawn from the spring and the switch is opened.

Applications

Limit switches can be used in a variety of applications due to their ability to detect a variety of positions. Some common applications of limit switches include:

• Elevator and braking systems
• Safety systems
• Motion and position detection
• Industrial machinery control
• Medical equipment
• Appliances
• Consumer electronics
• Consumer products

Advantages

There are many advantages to using limit switches. The main advantage is the ability to detect a variety of positions. Limit switches are also relatively inexpensive and easy to install. Furthermore, they are durable and reliable and offer a wide variety of operating temperatures and pressure ranges. Last but not least, they are highly accurate and offer fast response times.

Conclusion

In conclusion, limit switches are highly versatile and can be used in a wide variety of applications. They are fairly inexpensive and easy to install, and are highly accurate and reliable. Furthermore, they offer a wide variety of operating temperatures and pressure ranges, as well as fast response times.