ABV1232413

Snap Action, Limit Switches

Snap action, limit switches are a type of electrical switch which is used to activate or deactivate a circuit. These switches generally operate when an object or force is applied to it, causing it to open or close. They are commonly used in automation, industrial robotics, or other processes where precise control of the switch is needed. These switches can also be used to detect physical phenomena such as temperature, pressure, or vibration.

The behavior of a snap action limit switch is highly dependent on the construction of the switch. This type of switch typically consists of an actuator rod, which is usually connected to an armature and spring, and a contact unit. The contact unit is typically composed of a metal contact and a detent, which are designed to make contact rapidly when the actuator rod is moved. This motion causes the switch to open or close and activates the circuit.

Snap action, limit switches are particularly useful in applications where precise control of a switch is needed. This type of switch is also resistant to mechanical shock and vibration which makes them suitable for use in harsh environments. Additionally, their rapid response time makes them suitable for use in applications where extreme speeds and accuracy are needed. In many cases, these switches offer a more reliable and cost effective solution compared to conventional switches.

The most common application for snap action, limit switches is within industrial robots. This type of switch is used to enable precise control of the robot’s movement. For example, when a robot arm moves in a certain direction, one of the switches may be activated, signaling the control system to move the arm in a different direction. In addition to robots, these switches are also used in a variety of other applications, such as motor control systems, door openers, and security systems.

The working principle of a snap action limit switch is relatively simple. When an external force or object comes into contact with the switch’s actuator rod, it causes the armature and spring to move, which allows the contact unit to make contact rapidly. Once the switch’s contacts close, it sends a signal to the controller, activating the circuit.

In summary, snap action, limit switches are a type of switch designed for precise control of a circuit. They are typically used in industrial robots, motor control systems, door openers, or security systems. The working principle of this type of switch is relatively simple. When an external force or object comes into contact with the switch’s actuator rod, it causes the armature and spring to move, which allows the contact unit to make contact rapidly and activate the circuit.