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Pushbutton Switches - AVD311NUR Application Field and Working Principle

Pushbutton switches are simple electrical devices that typically include a simple on/off switch and at least one button or lever. The AVD311NUR is a single-pole double-throw (SPDT) center-off Pushbutton switch that works using a plunger-activated contact system.General-purpose pushbutton switches are used in a wide range of applications, from controlling home appliances to powering industrial machinery. As for the AVD311NUR, it is specifically designed for automotive use and can be used in a variety of settings, such as engine starters, blowers, wipers, door locks, and warning systems.The AVD311NUR works off an electrical circuit, typically 12 volts DC, to provide an easy way to switch devices on and off. It is designed for both momentary and maintained operation. When the button is released, the contact returns to the center or rest position.The working principle of the AVD311NUR is relatively simple. It consists of a plunger-driven contact system, where the plunger is activated when the button is pressed. When the plunger is activated, it pushes a thin metal contact onto a switch, making the circuit between the two contacts and allowing the current to flow. When the switch is released, the contact returns to the rest position and the circuit is broken.The AVD311NUR also includes several safety features. It includes a fail-dead locking feature, which prevents the contacts from sticking in the “on” or “off” position, as well as functional and temperature compensations. Additionally, it also has a large contact area for reliable switching and a reinforced base to ensure the highest safety standards are maintained.The AVD311NUR is designed for a wide range of applications and offers a reliable and efficient operation. Its plunger-driven contact system provides a quick and easy way to switch devices on and off, making it ideal for automotive use. Additionally, the inclusion of several safety features makes this switch a top choice for many different applications.

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