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Snap Action, Limit Switches

A snap action, limit switch, commonly called a snap switch or micro switch, is an electrical switch used to control electrical circuits. It is commonly used in many different applications, including manufacturing, medical, telecommunications, and in consumer products like microwave ovens, automobiles, and gaming systems.The D4NH-1CAS is a compact snap action, limit switch designed for applications requiring low power operation and a high degree of accuracy. The D4NH-1CAS features a single-pole, single-throw (SPST) contact arrangement and is rated for up to 230 vac at 6 amps. It also includes an adjustable pivoting arm and spring-loaded reset lever. The switch is available in momentary contact or maintained contact configurations.The main components of the D4NH-1CAS include its contact assembly, a strong, adjustable tension lever, and a spring return mechanism. The contacts, when operated, will complete or interrupt the circuit depending on the type of configuration. For example, momentary contact configurations will keep the circuit open until the switch is operated, and maintained contact configurations will keep the circuit closed when the switch is operated and open when the switch is released.The D4NH-1CAS utilizes a single lever and cam mechanism that provides a consistent, reliable, and repeatable operation. When the lever is actuated, it moves the cam against the pressure of a tension spring and push the contact arm down. The pressure of the spring swings the lever back to its open position as soon as the contact arm is released. This mechanism ensures that the D4NH-1CAS provides repeatable, consistent operation and accurate responses to user input.The D4NH-1CAS is an ideal switch for applications requiring low power operation and reliability in critical switching conditions. It can be used in a wide variety of applications, including telecom and medical devices, consumer appliances, automotive, and industrial controls. It is particularly well-suited for applications that require precision activation and quick response, such as those found in vending machines and gaming systems.The D4NH-1CAS also provides a wide range of mounting options. It can be mounted quickly and securely using a variety of methods, including screw-mount, strap-mount, or lug-mount. It is resistant to vibration and shock, and its heavy-duty construction ensures reliable operation and long-term durability. The D4NH-1CAS provides an economical solution for controlling current in critical applications, making it an excellent choice for many different applications.

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