E19-00A

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Snap Action, Limit Switches

E19-00A snap action, limit switches are cost-effective, reliable and incredibly durable products used to detect mechanical motion and position within a wide range of industrial and commercial applications. The switches are composed of an actuator, a switch mechanism, and a contact assembly. When operated correctly and correctly specified, E19-00A switches can provide reliable performance for many years in tough industrial applications.

Operating Principle

E19-00A snap action limit switches are designed to sense the physical movement of a window, door, or other mechanized component and open or close an electrical circuit based on this movement. Generally, operation is accomplished by the actuation of a plunger-type actuator against the surface of a contact load, which then produces the desired output when the plunger is released. This type of switch typically contains a simple electrical circuit, where manipulation of a switch’s lever arm or rotation of the switch\'s plunger causes contact points within the switch to open or close. As the switch engages, a metal contact point moves directly behind the plunger, changing the electrical state of the circuit and allowing current to flow.

Application Fields

E19-00A snap action limit switches are used in a wide variety of industrial and commercial applications. In manufacturing, they are commonly used in production lines to detect the movement of parts and to initiate automated processes. For example, when placed at the end of an assembly line, a switch can indicate to the production process when a part has been correctly assembled. They can also be used as a presence sensor so an automated machine only cycles when an object is correctly placed within its field of view.

In addition to manufacturing, limit switches can be used in commercial settings as well. They are often used as control devices on automatic doors and windows, allowing an operator to open and close them remotely. In aerospace, limit switches are commonly used on elevators, monitoring the movement of the cable and providing an automated stopping mechanism. Their versatility and small size make them an ideal solution for applications requiring a reliable, yet unobtrusive switch with a long life expectancy.

Durability and Maintenance

E19-00A snap action limit switches are incredibly durable and can provide reliable performance in harsh industrial environments. Generally, the switch is rated to withstand up to 10 million mechanical cycles, making it an ideal choice for operations which require frequent, reliable switching. To ensure peak performance and reliability, maintenance of the switch should include periodic cleaning and testing of the contact plates and the related wiring. Additionally, periodic re-lubrication of moving parts may be necessary, depending on the applications in which the switch is used.

E19-00A snap action limit switches provide a cost-effective, reliable, and durable alternative to traditional switching components. By monitoring physical movement of a window, door, or other mechanized component, the switch can accurately open/close an electrical circuit and initiate automated processes. When correctly specified and properly maintained, E19-00A snap action limit switches can provide reliable performance for many years in varied industrial applications.

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