8AS122

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Snap Action, Limit Switches 8AS122 Application Field and Working Principle

The 8AS122 is a type of snap action, limit switch which uses a mechanical, hot-molded plastic actuator and a micro-switch. These switches are typically used for sensing the position of a mechanical system or for activating a switch at a predetermined position. They are often used in industrial applications such as material handling, motion control, machine monitoring, safety systems and process control.

What is a Snap Action, Limit Switch?

A snap action, limit switch is a type of mechanical switch which senses the position of a moving object, or activates a switch at a predetermined position. It utilises a limited movement of a mechanical actuator to actuate a switch. It can be used to sense the rotation of a rotating motor, the angle of a shaft, or the position of a movable object in a mechanical system. A limit switch is a type of safety device, as they are used to shut off a machine or limit the movement of a system in the event of a malfunction.

Construction of 8AS122

The 8AS122 is constructed from a housing which features a metal stem, a plastic actuator and a switch mechanism. The metal stem is connected to the housing via a connector, and the plastic actuator is mounted onto the stem. The plastic actuator acts as a lever, and when the stem is pushed to a certain point, the actuator is released and the switch is activated. The switch mechanism consists of a micro-switch and a switch housing, and this is where the switching of the 8AS122 is completed.

Application Field

The 8AS122 is suitable for use in a range of applications, including:

• Material handling – the 8AS122 can be used to sense the movement of material along a production line.
• Motion control – the switch can be used to detect the position of a moving object.
• Machine monitoring – the 8AS122 can be used to detect abnormalities in a machine’s operation.
• Safety systems – used for automatic shut-off systems in the event of an emergency.
• Process control – the switch can be used to control automated processes in production lines.

Working Principle

The working principle of the 8AS122 is based on a simple mechanical action. When the stem of the switch is pushed to a certain point, it releases the plastic actuator, which in turn triggers the micro-switch. This then closes a set of electrical contacts, activating the switch. The switch can be reset by pushing the actuator back into place, de-activating the switch.Overall, the 8AS122 is a highly reliable snap action, limit switch which can be used for a range of sensing and control applications. Its construction and working principle make it easy to install and use, and its use in safety systems ensures a high level of safety in the application.

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