WLD-LE

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Snap action limit switches are a vital part of many industrial and machine control systems. WLD-LE limit switches, short for WL Dual Limit Switches, are a type of switch which offer the most important and robust functions for electrical and mechanical controls, with superior performance and value. These limit switches are designed and manufactured to be reliable, accurate, and small enough to fit into tight spaces.

Application Field: WLD-LE limit switches have a wide range of applications, from elevator and escalator controls to factory automation, light industry and safety systems. These limit switches are low-cost, low-maintenance components that are ideal for applications requiring reliable control of mechanical systems without requiring operator intervention. They can be used in places where space is at a premium, such as in elevators, motor control cabinets, food machinery, and in other areas where mechanical or electrical components need to be protected or monitored.

Working Principle: WLD-LE limit switches are designed to be highly reliable, consistent and accurate. The core of the switch is a spring loaded plunger linked to an armature, which is mounted in a fixed housing containing contact blocks. When something moves in front of the switch — usually an actuator, such as a lever or roller — the operation of the switch is triggered by the motion. As the motion continues, the plunger of the switch is forced against the movable armature, moving it away from the contact blocks. This establishes an electrical connection between the contacts and completes the switch circuit.

The design of the WLD-LE limit switch ensures reliable and accurate operation and no need for manual resetting and adjusting. This type of switch is highly recommended for applications that require repeatable accuracy, low failure rates and long term stability. It is also suitable for applications with aggressive or high temperature operating environments.

In addition, the WLD-LE limit switch can also be used to measure the speed and direction of rotating mechanical components, such as a motor shaft. The switch is equipped with a roller contact which, when connected to the motor shaft, triggers the switch circuit when the speed or direction of the motor shaft changes. This can be used to alert operators to possible safety hazards, such as an over-speed condition of the motor.

In summary, the WLD-LE limit switch is a reliable and cost-effective solution for applications involving mechanical and electrical operation and control. These switches are highly accurate, provide long-term stability, and can be used in a variety of hazardous or high temperature environments. Typical applications range from safety systems to industrial automation.

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