D4NL-4DFA-B-NPT

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Snap Action, Limit Switches: D4NL-4DFA-B-NPT Application Field and Working Principle

Snap action, limit switches are a type of electromechanical device used to detect the presence or absence of an object in a predefined area. They are typically used as safety devices in automated systems, such as robotics and factory automation, to help prevent accidental activation of machinery or elimination of power supply. When connecting or disconnecting power or signals, snap action switches are often used because they are reliable and proven technologies.

The D4NL-4DFA-B-NPT is a snap action, limit switch produced by Omron. It has a 15.5mm x 12.7mm footprint and is designed to fit into a 1/2-inch NPT pipe thread port. The device features a wide range of operating ranges, with a contact force ranging from several mN to 300mN (on the NPT version) and operating temperature ranges from -55°C to 125°C (on the NPT version). It also boasts an IP67 ingress protection rating. This makes it an ideal solution for use in harsh and hazardous environments.

The D4NL-4DFA-B-NPT is a versatile limit switch for many applications and environments. It can be used in applications where precise position detection of mechanical movement is required, such as in rotating systems, as well as for movement in straight lines and other linear applications. It can also be used in process automation applications as a fail-safe switch to ensure safety during hazardous operations and in medical equipment for detecting the presence of a patient or medical supply. It is also used in automotive and aerospace applications as a reliable switch with adjustable reset pressure.

The D4NL-4DFA-B-NPT switch features a simple, straightforward working principle. It is a latching switch that can be manually reset and has a single contact output. When an object (such as a push button or a lever) presses on the external actuator, it closes the internal switch contacts, which completes the circuit, thus triggering the switch. The contacts remain closed until an object is pressed against the spring-loaded actuator again. The release of the actuator resets the switch, re-opening the internal contacts and breaking the circuit.

The D4NL-4DFA-B-NPT snap action, limit switch is a reliable, cost-effective solution for many applications and environments. Its simple, straightforward working principle makes it simple to use and integrate into most systems without any additional wiring or control. Its rugged construction and IP67 rating make it a perfect choice for hazardous and wet locations, and its wide operating temperature ranges make it ideal for a variety of industrial and medical applications. If you are looking for a reliable, reliable switch for your application, the D4NL-4DFA-B-NPT may be the perfect fit.

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