12BS218

The 12BS218 Snap Action, Limit Switches is an electrical switch device generally utilized in automation and process control industries. It is composed of two separate switches, one fixed and one movable, which complete a circuit when the contacts between them are connected. The switch is typically mounted to an automated system\'s framework and is connected to sensing elements such as limit frames, switches, and safety guards. The device is designed to detect an operation\'s status and to generate an appropriate control signal.

The 12BS218 Snap Action, Limit Switch\'s operating mode and principles is dependent upon the type of switch. The normally closed type of switch has two normally closed contacts and is activated when it is pushed open. This type of switch is commonly used to detect the startup of an operation like a conveyor. The normally open type of switch has two normally open contacts that open when triggered, making it useful for detecting overload conditions. Alternatively, the SPDT (single pole double throw) type of switch has three contacts and is used for detecting a variety of functions such as the start of an operation, an overload condition, or an off-limit condition.

A 12BS218 Snap Action, Limit Switch is typically used in applications requiring a hard contact such as push-buttons, switches, and control panels. The switch is also used in applications when detecting contact closure is necessary, such as an overload or short-circuit condition. The switch is often utilized in automation and process control industries to sense and control the starting, stopping, and data collection functions of the interconnected devices. Additionally, this type of switch is used to detect the presence or absence of objects or components, such as in car safety systems.

The working principle of the 12BS218 Snap Action, Limit Switch is based on the spring-like force that connects one contact to the other. An actuator such as a button or lever manipulates the movable contact to push open the switch and close the circuit. When the open button is released, the spring-loaded contacts snap back into their original position and the circuit is re-closed. This design provides remarkable speed and accuracy when sensing signals from hard contacts. Additionally, this type of switch is usually reliable and low-maintenance which makes it ideal for use in heavy-duty applications.

The 12BS218 Snap Action, Limit Switch provides valuable control and detection functions in automated systems. It is composed of two separate contacts, one fixed and one moveable, that complete a circuit when the contacts between them are connected. This type of switch is utilized in a variety of applications ranging from push-buttons, switches, and control panels to overload or short-circuit conditions in automation and process industries. The working principle of the device is based on a spring-like force connecting the two contacts which diffends when manipulated. This design provides a swift and an accurate way to detect signals from hard contacts making it reliable and low-maintenance ideal for heavy-duty applications.