PLR3716

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Rotary switches are electrical switching devices constructed with a hand-operated dial. Using a rotary switch, manually selected positions activate to provide a connection through a set of contacts. One of the most widely used rotary switches is the PLR3716 series, which has a wide range of application options and is of high quality. This article provides an overview of the PLR3716\'s application field and working principle.

Applications

The PLR3716 is a 4-pin rotary switch designed for circuit applications. It is a simple, cost-effective option for projects that require a hand-operated switch. The device is often used in audio systems to switch between multiple sound sources, such as different music streaming services. It can also be used in home-theater systems in order to switch between video inputs. Additionally, the device is used in automotive applications for controlling fan speed, power windows, and audio systems.

The PLR3716 is also popular for powering lighting systems. It is suitable for providing multiple power settings for cases where the user would require to adjust the brightness and the settings can be easily changed with a simple turn of the knob. It is also great for applications such as dimming ceiling lighting.

Working Principle

The PLR3716 is a rotary switch with 4 pins, which allows it to make 4 different connection points with a single - or double-pole operation. It functions using spring clips and anti-slip caps which prevent any unintentional mechanism movement when the switch is at rest. When the knob is rotated, a cam within the switch engages the spring clips that contact the appropriate set of pin terminals within the rotary switch to make the connection. When the knob is returned to its original position, the spring clips disengage and the switch returns to its original off position.

The PLR3716 is designed to handle up to 250VAC current and 2A electric current, making it perfect for lightweight projects, but effective enough for heavier electric applications. The top of the knob is marked to indicate the position of the switch, allowing users to identify each switchable configuration.

Conclusion

The PLR3716 rotary switch provides a simple and cost-effective way to control circuits in multiple applications. Its usage is wide-ranging due to its compatibility with audio, automotive and lighting systems. Moreover, its simple operation, robust design and 250VAC current handling capacity make it a great choice for a wide range of projects. With its basic and intuitive operation, the PLR3716 is an excellent rotary switch that provides a reliable and cost-effective solution.

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