WLF2CA12

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Snap action, limit switches are generally designed and used for a wide range of applications, such as machine control and safety, but the most common use is to limit the movement of a mechanism. The WLF2CA12 limit switch from Schneider Electric is one of the most popular and sought-after switches available in this field.

This switch is specifically designed as a two-pole, two-position toggle switch, providing a compact, dust- and splash-proofed limit switch solution. It is ideal for applications requiring a low-profile switch. It is reliable and resistant to vibration, making it a great option for industrial and domestic use.

Design and Materials

The design of this switch is clean, neat and spacious. It comes with a rigid plastic frame, providing plenty of space with an internal terminal block and thumb nut terminals. For a more effective sealing, this terminal also comes with a spring-loaded cover, which has been tested and certified for an IP67 rating. Its body is made from reinforced polycarbonate and its mounting base is polyamide, both of which are very robust in their construction.

Working Principle

The WLF2CA12 works on a simple switch principle, where a limit switch is used to initiate an electric circuit at a specific point. This switch is actuated by an external force or an internal spring, which can vary from one version to another. The actuation occurs when the force applied exceeds a given value for a certain duration. The action of the switch is translated into an electrical signal and is used to activate a variety of control systems.

Application Fields

This switch is most commonly used in industrial applications, where the accuracy, durability and performance of the switch are paramount. They are used in sensing and controlling motors, doors, rails, pumps, solenoids and energy conservation systems. It is also used in machine tool operation and automated process control in woodworking and metal-working shops.

Safety Considerations

As with most other electrical components, the WLF2CA12 has to be handled with care and installed properly in order to ensure its safety. This switch should be mounted in an environment where it is not subject to water splashes and dust, as this can cause electrical damage or malfunction. An appropriate earthling connection should be installed when needed, together with adequate protection against voltage spikes, if any. As a final note, regular maintenance should be conducted for the safety and performance of this switch.

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