D4N-2A62

Snap action, limit switches are mechanical devices used to sense position, deformation, or movement and to make or break an electrical connection that can be used as a signaling device to alert activity.  The D4N-2A62 is an example of a snap action, limit switch, which are often used to detect objects or the absence thereof, to count the number of objects, or to supply a definitive timing sequence.

Applications

The D4N-2A62 is commonly used in industrial and commercial applications, as well as in home automation. It is also used for safety and security systems. Examples of applications include heating and ventilation systems, monitoring door and window openings in burglar or fire alarms, detecting the arm or tilt of machinery, or confirming the presence of an object in a conveyor system. It can also be used for other control and sensing tasks such as counting objects, reducing vibrations or noise from a machine, signal transmission, and so on.

Working Principle

The D4N-2A62 is a rigid snap-action switch mounted on a housing with a plunger, trip lever, or roller contact. Inside the housing is an electrically conductive contact, which is held in an open state by a mechanical spring. This spring is held in tension by the plunger, trip lever, or roller contact. When an actuating force is applied to the plunger, it moves the contact out of its rest position and into its closed state, completing the circuit and turning on the switch. The D4N-2A62 is designed to actuate quickly and consistently, and will remain in its closed state until the actuator force is removed. The speed and force of actuation of the switch can be controlled by adjusting the tension on the spring.

Once the actuating force is removed, the spring will regain its tension and move the contact back to its open state. The contact is designed to limit the amount of current that can flow when it is closed, thus protecting the circuit from over-currents and surges. The plunger, trip lever, or roller contact also serves to maintain contact tension and make sure the contact remains in its open state even if the unit is subject to vibration or moisture.

The D4N-2A62 is a versatile snap action, limit switch that can be used for a variety of applications. Its snap action design makes it ideal for automation, control, and sensing functions, and its adjustable tension allows for quick and consistent actuation. It is also designed to be resistant to vibration, moisture, and other elements, making it a great choice for industrial and commercial use.