D4N-2A22

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Snap action, limit switches are versatile switches which can detect the presence or absence of various mechanical objects, such as doors, windows or other materials. The D4N-2A22 model is a single pole double throw (SPDT) switch, featuring a 5A125VAC and 2A250VAC electrical rating. It offers wide applications in industry and home applications.

Design and Function

The D4N-2A22 snap action and limit switch utilizes a SPDT (single pole double throw) design. It has two contacts, one common and one normally open, which are connected to a hinged arm that is spring-loaded. The switch can be used in applications where it needs to detect the presence or absence of an object, such as a door opening or closing. When the hinge arm is pushed down, it contacts one of the two contacts, completing the circuit and allowing electricity to flow. The spring then resets the arm to its original position, breaking the connection and stopping the flow of electricity.

Applications

The D4N-2A22 switch can be used in numerous applications including door and window security systems, vending machines, industrial equipment and other automated control systems. Its versatility makes it an excellent choice for a variety of applications.

Working Principle

The D4N-2A22 works by detecting the presence or absence of an object or material. When the hinged arm is pushed down, it contacts either the common contact or the normally open contact, depending on the configuration of the switch. This completes the circuit, allowing electricity to flow. The spring then resets the hinged arm to its original position, breaking the connection and stopping the flow of electricity.

Benefits

The D4N-2A22 is an easy to use, cost-effective solution for applications which require a switch capable of detecting the presence or absence of an object or material. Its small size and low power consumption make it ideal for applications in tight spaces and its robust design makes it highly reliable. Additionally, the switch is available in various contact configurations and is compatible with many different types of control systems, making it a versatile solution for any application.

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