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Snap Action, Limit Switches

The D4N-9162 is a type of snap action, limit switch. Limit switches are electromechanical devices used to detect the presence or absence of an object. This particular D4N-9162 switch is designed for mounting in a smaller size than is typical for a limit switch. The device is set up with screw terminals, or plug-in terminals, as well as quick-connect terminals. It is engineered to operate with some of the most common industrial applications.

Applications and Uses

The D4N-9162 is well-suited for applications where reliability, durability, and affordability matter. Its applications range from controlling motors and lights to activating transducers and PLCs. Its low height design makes it a good choice for mounting into tight spaces, and its V-shaped armature allows for smooth, efficient operation.

Features and Benefits

The D4N-9162 is equipped with several features that make it a desirable limit switch. The switch’s actuator mechanism is designed to provide reliable operation and extended service life. The plunger is equipped with strain relief to protect against excessive wear while in use. To reduce the risk of electrical arcing, the switch assembly is designed to reduce contact bounce. It is equipped with an adjustable cam and removable base, as well as a built-in cam stop.

Working Principle

When a current is applied to the D4N-9162 switch’s contact circuit, the plunger will move against the spring tension, causing the moving contacts to open or close the circuit. When the plunger is moved, the cam is pressed against the outer spring. The spring will then force the contact arm, allowing the plunger to move and the contact arm to close or open. This motion will cause a current to be sent, indicating that the switch is in operation. The plunger can also be adjusted to change the amount of force needed to move it. Once the plunger has been adjusted, the switch can be reset and the same current will be sent each time the plunger is moved.

Conclusion

The D4N-9162 snap action limit switch is a useful and reliable device. Its small profile and adjustable plunger make it a great choice for a variety of industrial applications. Its V-shaped armature provides smooth, reliable operation and the strain relief on the plunger protects against excessive wear. The switch is equipped with screw terminals and other features to help ensure a long life.

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