09A90-01-2-02N

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Introduction

Rotary switches are one of the most versatile and commonly used electrical components available. They are characterized by their circular shifting mechanism, in which a contact is made by the rotational action of the switch arm. The application of a rotary switch includes a variety of uses, ranging from simple on/off switching of signals, dimmer switches, and manual selection of options. One popular type of rotary switch is the 09A90-01-2-02N, which is designed for low voltage applications.

Application Field

The 09A90-01-2-02N rotary switch has numerous applications in low voltage systems, such as measuring and testing systems, industrial control circuitry, and automation equipment. In addition, the switch is suitable for manual selection of options, such as speed and direction in motor control systems. The 09A90-01-2-02N is also widely used in home appliances and consumer electronics.

Working Principle

The 09A90-01-2-02N rotary switch is constructed with a cylindrical body that contains two concentric circular plates, a switching arm, four contact pins and two tension springs. The switching arm operates by rotating around the central axis of the switch and is held in place by two tension springs. The contact pins are inserted in two concentric circular plates and are connected to four electrical leads. When the moving arm rotates, the contact points allow an electrical connection, while when the arm is not in motion, it keeps the connection open.

As the switch rotates, the contact pin’s position is changed and it contacts the other circle plate and establishes an electrical connection. When the switch is in its off position, no pin is pressed and the connection is open. The 09A90-01-2-02N has a cam profile that allows for the switching operation to be performed with precision and reliability.

Conclusion

The 09A90-01-2-02N rotary switch is widely used in low voltage systems due to its versatility, reliability, and precision switching operations. This switch is most commonly used in measuring and testing systems, industrial control circuitry, and home appliances. The way this switch works is by rotating the switching arm around the central axis of the switch and changing the contact point’s position to make or break a connection.

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