83274809

Snap Action, Limit Switches, have been around since the early 1900s and are essential elements in most industrial process automation systems. These switches are used to provide a signal when a particular position or limit is reached, either manually or automatically. They are also used for controlling the flow of electricity in many systems, as well as providing on/off control and many other functions. Snap Action Limit Switches provide essential, reliable and often times essential safety features for industrial processes.

At their most basic, a Snap Action, Limit Switch consists of a switch body containing a contact, a spring and an actuator. The method of operation depends on the type of switch body used. A push-button type switch typically contains a rocker arm that when pressed by an actuator, such as a plunger, will actuate the switch, breaking the contact and turning the circuit off. A lever-type switch uses a lever arm, joined to the actuator to actuate the switch. Other types include toggle and rotary switches.

The contact itself is usually made of a material such as silver, gold or platinum, that ensures a low-resistance electrical connection when the switch is actuated. The contact closes and opens the circuit when it is pushed or turned off, and this action is known as “snapping”. This action is the reason for the “Snap” in Snap Action, Limit Switches. The “Limit” part of the switch name indicates the maximum amount of travel or motion of the switch’s actuator, which is the part that actually triggers the switch.

Regardless of the type of limit switch, they all work in essentially the same way. When an actuator is pressed, it causes the switch body to move, which in turn causes the contact to open, breaking the circuit. The circuit remains open until the actuator is released and the switch body returns to its initial position, thus completing the circuit and turning it on again. This is why limit switches are often used in applications where it is important for a circuit to be turned on and off at specific points in an automated system.

Snap Action, Limit Switches are essential in many types of industrial processes, from controlling electric motors and pumps, to providing safety features to protect operators and delicate equipment. They are available in a wide range of designs and sizes, and they offer users the flexibility to use them in multiple applications. In addition, standard limit switches can be easily configured to fit custom applications. By combining multiple limit switches into one device, users can achieve greater accuracy and control in their industrial processes.

Thanks to their reliability, easy installation and the ability to tailor them to specific needs, Snap Action, Limit Switches are an integral part of many process automation systems. From motor control to hazardous machine guarding, Snap Action, Limit Switches are a versatile and reliable solution for many industrial applications.