D4SL-N2QFA-D

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Snap action, limit switches are used to accurately control electrical circuits while ensuring the reliable operation of systems. The D4SL-N2QFA-D is a type of limit switch based on a hinged lever that opens and closes a series of electrically activated contacts as it pivots. The switch\'s general purpose application field and working principle are outlined below.

Application Field

The D4SL-N2QFA-D is generally used for applications requiring accurate and dependable switching. It is commonly used for machine safety relationships, controlling motor speeds, or stopping and starting processes. It is suitable for industrial, marine, and general purpose applications, and is often used in the manufacturing and energy sectors.

Working Principle

The working principle of the D4SL-N2QFA-D relies on its hinged lever design. The switch is composed of a lever, a contact block, and an actuator. When a user moves the lever or applies pressure, the actuator is activated, causing the lever to pivot and open or close the contact block, which makes or breaks the circuit. The lever pivots and pushes against the contact block until it reaches either a predetermined distance or force. When the user stops applying pressure, the actuator and lever springs back in the opposite direction, closing or re-opening the contact block.

Contacts

The D4SL-N2QFA-D has two types of contacts: normally open (NO) and normally closed (NC). NO contacts are open (nonconductive) when the switch is in its resting position, but close when the lever is activated and makes physical contact with the contact block. NC contacts are closed (conductive) when the switch is in its resting position, but open when the lever is activated and makes physical contact with the contact block. This allows for a range of configurations and can be used to control a variety of circuits.

Mounting

The D4SL-N2QFA-D is designed with a range of mounting features, which allows it to be used in a variety of applications. It can be mounted using the included screws and nuts, or the additional side hooks, or through the integrated holes in the housing. This makes it suitable for mounting onto almost any surface.

Limitations

Limit switches, including the D4SL-N2QFA-D, are not suitable for all applications. As the switch is based on a mechanical moving part, care must be taken to ensure reliable operation under varying temperatures and forces. The switch should not be exposed to excessive dust and should not be used in environments that are too wet, humid, or cold.

Conclusion

The D4SL-N2QFA-D is a type of snap action, limit switch used for accurate and reliable switching. It is ideal for industrial, marine, and general purpose applications, but care must be taken as it relies on a mechanical moving part. This switch is designed with a range of mounting features, allowing it to be easily and securely mounted onto almost any surface.

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