Series:	83106
Part Status:	Active

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Introduction

Snap action, limit switches are essential components for detecting the presence of objects and measuring the thickness or length of a material. This article will discuss the application field and working principle of a 831066C3.TL switch.

Application Field

831066C3.TL switches are typically used in flywheel type power transmission systems, and precise actuation of transmission systems and machines. Due to their single-pole double-throw (SPDT) contacts they can be used to detect the direction in which the process is rotating, and this data can then be analyzed to determine the speed and torque of the mechanism. Moreover, 831066C3.TL switches can also be used for position, level and pressure sensing, as well as in systems for automation and control.

Working Principle

The 831066C3.TL snap-action type switch operates using a mechanical lever and a cam actuator. The lever is connected to a spring and the actuating cam has been pre-set to engage the lever when a certain point or line is crossed. When the cam engages the lever it releases energy which acts as an actuation force against the spring producing a sudden, sharp movement. This movement is known as the snap-action, and it trips the switch and causes the contacts to open or close.The 831066C3.TL switch has two contact forms, normally-closed (NC) and normally-open (NO). When the switch is in its normal state, the NO contact is open and the NC contact is closed, unless otherwise specified. When the switch is actuated, the NO contact closes down and the NC contact opens. This way, the device can detect any change in a material’s length, thickness or position.

Conclusion

831066C3.TL switches are a type of limit switch that offer efficient and precise actuation in a wide range of applications from flywheel type power transmission systems to automation and control systems. Their SPDT contacts allow for the detection of rotational direction, and the snap-action mechanism allows them to trip quickly when a certain point or line is crossed.

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