WLMGCA2-LDK43-N

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Snap Action, Limit Switches

The WLMGCA2-LDK43-N is a type of snap action switch, more commonly referred to as a limit switch. In operation since its invention in 1938, limit switches are one of the most widely applied proximity sensors in industrial automation by both manufacturers and industrial users. Described as a form of emergency shut off, limit switches are switches with electrodes or mechanical contacts that limit the length of a movement. When an object enters the proximity of the switch, the contact is activated, limiting further motion.

Applications

Limit switches often come in the form of a lever or roller and are utilized with industrial machinery such as conveyors for the control of machines and high-level circuit triggers in industrial processes automation. These switches are also used in security systems. For example, automated door systems with reliable limit switches provide redundancy that ensures the door is not accidentally opened when it shouldn’t be.

Construction

The WLMGCA2-LDK43-N contains two contact pieces, which are connected to a coil contact that is set into the housing. This coil contact is the switch’s primary feature, as it “snaps” when actuated, thereby providing a reliable and durable switch. The switch also has an actuator, or lever, which triggers the contacts, as well as a cover plate for protection from over-triggered switches.

Working Principle

Limit switches have either a mechanically or electrically actuated contact system. When actuated, the contacts close, thus allowing electrical current to flow. The flow of current is then relayed to a control system or device for stopping or initiating a process or movement. They are usually connected to a mechanical motion such as a slide, gate, or lever. When actuated, the contact blocks the motion, while in the unactuated state, the contact is open and the motion continues. The WLMGCA2-LDK43-N includes an adjustable pivoting actuator which is used to adjust the travel length of the switch.

Advantages

The key advantages of limit switches are their longevity and dependability. They are cheap, versatile, and easy to set up. The snap action of their contacts also reduces the amount of electrical contact wear and helps ensure accuracy. Their adjustable actuators also allow for a certain degree of customizability, and they are usually able to activate in any application that has either a mechanical or electro-mechanical motion.

Conclusion

The WLMGCA2-LDK43-N is an excellent example of a limit switch. It is versatile, durable, and reliable, making it an ideal choice for displaying a mechanical or electro-mechanical motion. Its adjustable switch makes it also extremely useful for applications that require customizability. Finally, its snap action ensures less contact wear and greater accuracy, making it a great solution for industrial automation and security systems.

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