EXD-AR30-3

Snap action, limit switches are devices that perform an important role in automation systems. The EXD-AR30-3 limit switch is a versatile, compact, and robust switch that offers a wide range of applications, from the industrial to the commercial sectors. This article will focus on the application field and working principle of this reliable switch.

Application Field

The general application field covers a wide variety of applications, including automated handling equipment, material lifting and transport, industrial robots, manufacturing equipments and processes, commercial sector operations, security, and automation systems. This limit switch provide two different circuit modes, latching or non-latching, with three poles and contact forms of NO, NC, and CO. The circuits respond rapidly to a switch detection or can be manipulated as needed for specific applications without manual effort.

Working Principle

The switch works on the principle of mechanical activation. The actuating elements of the limit switch are different mechanical motion elements like plungers, levers, and links. The motion of these elements in response to the application of external force (e.g. from manual actuation, pressure, or movement) changes the electrical contacts between the switch terminals. This action results in changing the electrical connection of the switch, either activating the circuit or deactivating it.

The EXD-AR30-3 operating temperature ranges from -20°C to 120°C, and the working voltage can reach 120V AC/DC. With its small size, easy installation and maintenance costs and long lasting mechanical life, 3 million operations, the EXD-AR30-3 is designed to provide a reliable switching performance, no matter the application.

Conclusion

The EXD-AR30-3 limit switch is a versatile, cost effective and resilient switch which can be used for many automation applications, especially industrial and commercial sector operations. It offers two different circuit modes and three contact forms, making it suitable for almost any application. Due to its small size, long lasting mechanical life, easy installation and low maintenance cost, the EXD-AR30-3 is becoming increasingly popular in the industry.