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Snap Action, Limit Switches

A snap action, limit switch, such as the WGLA1A02AA2B, is an electrical switch which has two different positions. In one position, the switch is open, and in the other position, the switch is closed. This type of switch is often used to detect the end of a mechanical movement, such as the opening and closing of a door, or the rotation of a pulley or gear. The switch will be connected to an electrical circuit, and when the switch is triggered, it will either complete or break the circuit, allowing power to flow or not.

The WGLA1A02AA2B switch is a special type of snap action switch. This type of switch is designed to be overload proof, which means that it can withstand bursts of power without being damaged. This is important in situations where electrical currents can spike due to mechanical contacts breaking. The switch is also designed to be dust and water-resistant, making it suitable for use in harsh industrial environments.

Working Principle

The working principle of a snap action switch is relatively simple. Inside the switch housing is a spring-loaded contact. When the switch lever is pushed or pulled, the contact is forced against either an open or closed metal plate, depending on the direction of the switch lever. This closes or opens the circuit, depending on the position of the switch.

The WGLA1A02AA2B switch uses a plunger in place of the lever. When an external force is applied to the plunger, it pushes on a switch actuator. This causes the switch contacts to be forced against an open or closed surface, completing or breaking the circuit. The switch is designed to allow for a variable actuation force, meaning that it can be operated with a very light touch, or with more force depending on the user’s needs.

Applications

The WGLA1A02AA2B switch is commonly used in industrial applications such as robotics, automated machinery, process control, packaging and manufacturing. It is also used in consumer applications such as doorbells, thermostats, sensors and other devices which require a switch which can be triggered with a light touch of a finger.

The advantages of this type of switch are its ability to respond quickly, its overload proof design and its dust and water-resistant construction. This makes it suitable for use in a wide range of applications and environments.

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