WLD28-LD

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Snap action switches or limit switches as they are known are commonly used automation components in industrial equipment. They are employed to detect positions, detect and stop motion and protect from unforeseen mechanical or electrical failure. WLD28-LD is a popular limit switch from the OMRON Automation & Safety brand.

The WLD28-LD is a single-pole, normally open or normally closed snap action switch designed for applications for position sensing or protecting industrial equipment or any equipment of similar size and purpose. The switch comes with a limit switch housing with a full stainless steel face plate and has a built-in seal to prevent dust, dirt and moisture from entering the switch. In addition, the switch also has an adjustable actuation force to suit a wide range of applications.

The switch is UL approved and meets CSA requirements, and also has an IP67 rating. It has a long, secure operating life, with an operation cycle of up to an incredible 6 million operations. This makes it ideal for harsh applications in which long service life, secure operation, and energy saving are the necessary criteria.

Applications:

• Material handling equipment
• Process control equipment
• Industrial machinery
• Robotics
• Conveyor systems
• Printing machinery

The WLD28-LD snap action switch has a compact size and is sold in a standard metal housing. It is easy to install, and is suitable for use in places where space is at a premium. The terminal configuration is designed for panel and machine mounting, including surface, flush and cable-mounted installations. The switch can be ordered pre-assembled with various actuators and accessories.

Working Principle:

The working principle of this snap switch is that when pressure is applied to the actuator, or when the actuator is pushed, the contacts close and the circuit is bridged. When the pressure is removed from the actuator, or when it is released, the contacts open, and the circuit is interrupted. This creates an on/off action, activating the switch on or off depending on the type of switch used.

The WLD28-LD can be configured in normally open or normally closed mode, providing either a simple switch with no intermediate position, or a two-position switch with a middle position. This is done by selecting the appropriate actuator design, either manual or mechanical, depending on the application.

In addition, the switch also has a choice of built-in LEDs, so that when the switch is triggered, the LED lights up to indicate switch operation. This makes the switch easier to use and troubleshoot in the field.

The WLD28-LD is a popular limit switch for many applications, due to its robust design, wide range of options, and long operating life. It has proven to be an ideal component in a variety of applications, from semiconductor manufacturing to material handling and process control.

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