D4GL-1GFA-A

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Snap action, limit switches are popular control equipment in many settings, with the D4GL-1GFA-A providing one example of a device for these purposes. This particular limit switch is sold in both basic and standard models and offers a number of features including an integral actuator, a wide range of configurations, and a reliable, long-life design. Here we look at the effect field, core principles of operation, and some notable benefits of using this limit switch in comparison to others.

Application field

The D4GL-1GFA-A limit switch typically finds application in systems where two circuits must be kept separate unless specifically activated, or when a system must provide an circuitry that can be shut off at once. Other common applications include providing reliable repeatability of a given function, and provide reliable performance in harsh environmental conditions such as extreme high/low temperatures, mechanical shock, or moisture. It can also be used for remote signalling and positioning, as well as applications where slow turning motion needs to be followed exactly.

Core principle of operation

The D4GL-1GFA-A limit switch operates on a circuit-based principle which follows conductive wires through a specialized switch, which then breaks/makes contact based on an actuation of a roller pin. This roller pin, when pushed against the switch, makes contact which then triggers the switch to close, thus indicating a change in the state of the circuit. If a timer is present, then this contact can be maintained until the timer has run its course, thus providing a delayed response.

When the circuit is closed, a current is sensed which is then passed through a downstream component, such as a relay which then closes the circuit, or a solenoid to turn on a motor. When the roller pin is pushed away from the switch, contact is broken and the circuit is opened, thus halting the current flow. This is a very basic, core principle of operation of many limit switches, with the D4GL-1GFA-A simply providing one specific example of this basic process.

Notable benefits

The D4GL-1GFA-A offers a number of features that make it ideal for many applications. It offers a larger contact area, meaning that it can be used with a greater number of circuit configurations. It also has a wide range of adjustments, allowing it to be tuned precisely to the requirements of a given application. The integral actuator system also ensures that the device will remain consistent in the long-term, with no risk of any motion being disturbed or altered. Finally, it is rated for safety Certification EN 61 510, an advantage which many other devices do not offer.

In short, the D4GL-1GFA-A is a reliable, highly adjustable snap action, limit switch which can be used in a variety of applications, such as those requiring a remote signalling or repeated shutdown, or reliable performance in harsh environments. Its internal design and integral actuator system mean that it will provide many years of consistent and safe operation.

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