D4NL-4AFG-B-NPT

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Snap action, limit switches are electromechanical devices which are used to interrupt circuits when an external force exceeds a certain amount. The D4NL-4AFG-B-NPT snap action, limit switch, manufactured by Omron, is a general-purpose device used in many fields and applications. This article will look at the application fields and working principle of the D4NL-4AFG-B-NPT.

The D4NL-4AFG-B-NPT is typically used in industrial machine tools, material handling systems, packaging systems, and other automated equipment. It is used for sensing the presence of an object, for example, detecting the presence of specific material or part, or to sense a predetermined position of a part or product. The device may also be used to control the start and stop of motors, to open or close valves, or to make or break an electrical contact.

The D4NL-4AFG-B-NPT snap action, limit switch consists of a main body and a plunger or actuator. It is micro switch operated by an external force, usually in the form of a plunger or lever. The plunger or lever presses against the actuator, which then actuates the device. A cam operated mechanism within the device allows the plunger or lever to move freely until a predetermined action force is exceeded, at which point the device will actuate.

The device operates on the principle that when an external force is applied, it actuates the internal switch. When the external force is removed, the switch returns to its original state. This is known as “snap” or “spring-action” since the switch works with a plunger or lever that is spring-loaded, so it “snaps” into action when a certain amount of force is exerted. It is possible to set the force threshold of the device with adjustments which are available on the device.

The D4NL-4AFG-B-NPT can be used in temperatures ranging between -20°C to +85°C and can operate at a range of 250 to 500 VAC. It has a maximum switching current of 5A and a rated life of 50,000 mechanical operations.

The D4NL-4AFG-B-NPT snap action, limit switch is designed for general use in a variety of industrial applications. It is robust and reliable, easy to install and configure, and can accurately sense a range of external forces. It is a durable device which can be used for many years, and its simple design means that it can be installed quickly and easily.

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