1HE74-3

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Snap action switches are a type of limit switch, which are commonly used in many of today\'s industrial applications. Snap action devices are highly reliable and easy to use, and come in a variety of shapes and sizes to meet the needs of various applications. One of the most popular snap action limit switches is the 1HE74-3, which is used for a variety of applications, such as monitoring the position of components in machinery, or detecting over- or under-current on electrical circuits.

The 1HE74-3 is a precision snap-action switch that can be used in a variety of industrial, commercial and residential applications. This switch offers superb accuracy and repeatability, two of the most essential qualities sought when selecting a snap action switch. The 1HE74-3 is designed to offer a long lifespan, with up to one million cycles of operation before it needs to be replaced. It is also reliable, with a maximum ambient temperature rating of 105°C and an IP 67 ingress protection rating. The snap action switch is also UL listed and CE mark certified.

The 1HE74-3 also features a built-in LED indicator. This LED light can be used to indicate whether the switch is in the open or closed position. The LED is powered by a separate circuit, so it will continue to operate even when the main circuit is off. The switch also has a built-in surge protection feature, which is designed to protect the circuit from power surges or voltage spikes. This protection should help to extend the lifespan of the switch and ensure it operates reliably for many years.

The working principle of the 1HE74-3 is based on a mechanical lever. The lever is designed to move when it comes into contact with an object, such as a piece of machinery or an electrical circuit. This lever is connected to a spring assembly, which holds the lever in place when it is not in contact with an object. When the lever is moved, it triggers an electrical signal which causes the switch to change state, either opening or closing the circuit depending on the configuration.

The 1HE74-3 is a highly reliable and accurate snap-action limit switch that can be used in a wide range of industrial, commercial and residential applications. Its features and robust construction make it a great choice for any application requiring precision switch operation. The switch is UL listed and CE marked, ensuring it is safe and reliable, and it offers a long lifespan and good surge protection. With these features and more, the 1HE74-3 is sure to provide reliable and accurate switching performance for many years to come.

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