D4SL-3PDA-DN

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A Snap action or Limit Switch is a switch-like device used to instantly respond to movement or a change in pressure or position. While most switches respond to physical pressure, snap action switches are designed to react instantly to environmental cues, such as changes in temperature or pressure, or the interruption of an electrical current. D4SL-3PDA-DN switches are used in a variety of applications such as controlling motors, tracking room temperature, and providing a reliable mechanical method to activate security systems.

Applications

• Motor Control: These Snap Action switches are widely used as limit switches to control motors, pumps, and other similar machinery. They are usually mounted on the machine itself and act as a sensor to stop the motor if it moves beyond a certain point.
• Temperature Monitoring: D4SL-3PDA-DN switches are often used to track temperatures in industrial or commercial settings. The switch is connected to the temperature sensing device and set to activate when the temperature reaches a certain point.
• Security Systems: Snap Action switches are commonly used in security systems to activate an alarm or to lock doors at certain points. These switches are set to activate if someone attempts to enter the area without authorization.

Working Principle

D4SL-3PDA-DN Snap Action Switches are operated by a solenoid, which is a metal core that is placed into a magnetic field. The metal core is connected to a metal plunger and a spring is used to keep the metal plunger in place. When electricity is supplied to the solenoid, it creates a magnetic field, which attracts the metal plunger, pushing it against the spring. This causes the switch to close, allowing electricity to pass through. When the electricity is removed, the plunger is pulled back by the spring and the switch re-opens.

D4SL-3PDA-DN Snap Action switches are reliable and easy to install. They are capable of operating safely in a wide range of temperatures, and are able to withstand shocks and vibrations. The contacts are built with a unique design to reduce wear and tear, making them longer-lasting and highly reliable.

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