D4SL-N3VFA

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Snap action, limit switches are mechanical devices that are often used in safety-critical systems. They are designed to open and close an electrical contact when a predetermined physical limit is reached. One of the most popular types of these devices is the D4SL-N3VFA type. It is typically used in high-temperature applications such as in boilers, ovens, and furnaces.

It is designed to snap open when it reaches a certain temperature, usually around 200°C depending on the application. It will then close once it reaches a slightly cooled temperature, typically around 180°C. It consists of two parts, a thermal element and a snap action switch. The thermal element is responsible for sensing temperature and triggering the switch to open when it reaches a certain level. The switch is responsible for controlling the flow of electricity through the connection and determining the contact opening.

The key design feature of the D4SL-N3VFA is its adjustable differential. It allows for a wide range of set points, from 20°C to 250°C. This makes it an ideal choice for applications which require precise temperature control. It also minimizes wear and tear on the switch caused by frequent openings and closings.

In addition to its adjustable differential, the D4SL-N3VFA is designed to be robust and reliable in extreme temperatures. It has a rated operational temperature range of -40°C to +400°C, making it suitable for applications in industrial environments. It can also handle frequent thermal cycling due to its fast response time and high surge resistance.

The D4SL-N3VFA is also designed for easy installation, maintenance, and service life. Its snap action mechanism is designed to reduce installation time and the need for maintenance. It also offers a working life of up to 10 million cycles, making it more reliable and durable than other types of limit switches.

In conclusion, the D4SL-N3VFA is a reliable, robust, and easy to use snap action, limit switch. It is suitable for a variety of applications, including high-temperature applications such as boiler, oven, and furnace systems. It is designed with an adjustable differential that allows for a wide range of set points, fast response time, and a long working life. Finally, its snap action mechanism offers fast installation and reduced maintenance, making it a great choice for a wide range of applications.

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