D4NL-4FFA-B4

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Snap Action, Limit Switches

D4NL-4FFA-B4 is a type of snap action, limit switch for use in a range of industrial, commercial and domestic applications. The switch is designed to detect when a preset level in a system or machine is reached and then activate a specified action such as an alarm, shutdown or signal. The switch is available in a variety of specifications depending on the exact application.

A number of features are present in the D4NL-4FFA-B4, with the most notable being its snap action operation. This means that once the limit has been reached, the contacts of the switch form an electrical circuit which then initiates the set action. This is achieved by a spring action which is connected to the switch.

It is important to note that the D4NL-4FFA-B4 is not a regular switch such as a power switch or toggle switch. It does not have an on and off position, instead it only has a control position. When the limit is reached, the switch will move from the control position and complete the circuit.

The other notable feature of the D4NL-4FFA-B4 is its limit setting capability. This means that the switch can be set to a specific limit, meaning that if the limit is exceeded then the switch will activate. The switch also has adjustable hysteresis which can be set to a certain level and can be adjusted, ensuring that the switch will only activate within that range. This is beneficial in many applications where the exact limit is not known or may change.

The D4NL-4FFA-B4 is designed for use in a range of environments and can be fitted with a variety of housings and mounting options. It is waterproof, dust-proof and corrosion-resistant, making it suitable for use in tough and hazardous conditions. The switch also has a long life expectancy with an average working life of 1 million switch operations.

In addition to its robust design, the D4NL-4FFA-B4 also has a number of safety features that make it ideal for use in application that require a high level of safety. The switch is certified for use in a range of safety applications, including hazard limit and emergency stop switches. It also has a built-in current overload protection feature which can be configured to prevent the switch from operating should the current be too high.

Overall, the D4NL-4FFA-B4 is an excellent choice for use in a wide range of industrial, commercial and domestic applications. Its snap action operation, adjustable limit setting and safety features make it an ideal switch for use in a range of applications. With a long working life and reliable operation, the switch is an excellent choice for a variety of applications.

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