D4N-2C20

Snap Action, Limit Switches have a wide range of applications, including machine and industrial automation. The D4N-2C20 is a type of this switch, and has the ability to detect relatively small mechanical actions and provide reliable results. This article will discuss the application field and working principle of this switch.

Application Field

The D4N-2C20 is suitable for a variety of machine, industrial and automation processes, due to its small size and simple wiring requirements. It is commonly used in equipment automation, machine monitoring, sensors, and low voltage circuits. It can detect the opening and closing of doors and windows, the position of machine parts, pressure and temperature changes, the movement of parts, control panel and auto industry devices, and other similar actions.

Working Principle

The D4N-2C20 is a snap-action switch, which means that it responds to input immediately and generate an output signal. It uses a spring lever mechanism to detect various movements, such as the opening and closing of doors, windows, machines, and sensors. When the manual action, or a signal source, triggers the switch, it releases the tension of the switch’s lever and makes the contact. This produces an output signal, which may be used to control a circuit, or to indicate that an action has commenced or occurred.

The switch can detect and generate signals with both logical and mechanical polarities. With logical polarity, an input signal will activate the switch and will continue to be active as long as it’s received. With mechanical polarity, the switch will release and reset the lever in the event of a sustained sensitivity. For example, if the door is closed and the lever is triggered, the switch will reset its lever before the door is opened again.

The D4N-2C20 is a sensitive switch and can detect even small movements. It also has a strong resistance to thermal cycle, vibrations, shocks and over-time use. This makes it an ideal switch for a wide range of applications, including machine and industrial automation.