D4N-9A2HR

Series:	D4N-R
Part Status:	Active

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Snap Action, Limit Switches

As technology advances, the need for products and subsystems able to interact with larger systems becomes critical. Within the industrial automation market, the design and manufacture of products to fit these needs is constantly evolving. One such product is the D4N-9A2HR snap action limit switch.A snap action limit switch is an electromechanical switch designed to detect the presence or absence of an object and then respond accordingly. It works by moving SPST (Single Pole Single Throw) and SPDT (Single Pole Double Throw) contacts. A single throw literally means that a single switch will open and close each circuit. A double throw switch either opens or closes two circuits, depending on the direction the lever is pushed.The D4N-9A2HR has two actuator types, plunger and roller, both of which activate the internal switching mechanism by operation of a roller and cam system. When operational force is applied to the actuator, the roller is forced backward and engages a spiral cam profile, which in turn moves the internal switching mechanism up to the contact. Once the contact is engaged, the SPDT contacts on the switch open or close, depending on which direction the lever is pushed.The D4N-9A2HR is particularly suitable for use in harsh conditions, as it is designed to fit into the smallest of spaces while remaining highly resistant to dust and moisture. It is designed to be robust, reliable, and able to withstand temperatures up to a maximum of 80 degrees Celsius, temperatures which can be quite common in machinery operations. In addition, the D4N-9A2HR features LED indicators to provide visual status of the contact position, as well as support IP67 waterproof ratings. The D4N-9A2HR snap action limit switch is primarily used in industrial applications ranging from automotive manufacturing to food packaging systems. The switch is notably used within the automotive industry to detect the presence of an object and then trigger an action accordingly. For example, it can be used to monitor the level of oil or liquids, to control the positioning of elements, or to detect the presence of a tire.The D4N-9A2HR switch also has applications within the food industry, where it is used to detect levels of liquid ingredients, such as oil or chocolates, as well as the presence of plastic packaging materials, such as bags or wrappers. Additionally, it can be used to keep track of the levels of packaging materials used in food production, and to detect irregularities in the packaging line.The D4N-9A2HR is also commonly used in packaging, conveyor, and material handling systems. It is used to detect the presence of materials in order to inform the user as to when the equipment needs to be replenished or serviced. Additionally, it can also be used for high speed counting applications.With its rugged design and wide range of functionality, the D4N-9A2HR snap action limit switch is a proven solution for any industrial application requiring reliable electronic switching solutions. Whether used for automotive production lines or food production systems—the switch is able to detect and respond to environmental changes with accuracy.

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