LT4HT-AC240V

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Time delay relays are an important part of electrical control device systems. They provide the function of delaying the run timing or on or off commands from the operation panel and then sending an output signal to control the on/off state of the field devices. The LT4HT-AC240V is a time delay relay that is used in a range of industrial applications. In this article, we will discuss the application field and working principle of the LT4HT-AC240V.

Application Field

The LT4HT-AC240V time delay relay is designed to provide reliable control over a range of industrial application. It is suitable for a variety of safety, fabrication, assembly, and process control applications. It can be used as a delay on timer switch in several industries, such as the food, beverage, pharmaceutical, packaging, and semiconductor industries.

The device is also suitable for a range of manufacturing application, such as controlling machine start/stop motors, controlling the operations of molding machines, controlling the transfer of materials, and controlling the lubrication of machine tools. The device can also be used in the chemical, petrochemical, and metallurgical industries. It is also suitable for control in home and office applications.

Working Principle

The LT4HT-AC240V consists of two separate circuits, one for controlling the delay on time and one for controlling the delay off time. The time delay is adjustable and is preset at factory based on the user requirement. The user can easily adjust the time delay by the perforation wheel on the control board.

The delay on circuit controls the on delay time of the field devices and has three main components: a start button, a time setting resistor, and a delay on coil. When the start button is pressed, the time setting resistor starts to charge up and the delay on coil is actuated. This in turn activates the field devices and they are energized for the set amount of time.

The delay off circuit works in a similar way, but in this case it controls the off delay time when the field devices are powered off. The main components of this circuit are a stop button, a time setting resistor, and a delay off coil. When the stop button is pressed, the time setting resistor discharges and the delay off coil is actuated, which in turn de-energizes the field device for the set amount of time.

In addition to the time delay, the LT4HT-AC240V also provides an On/Off indicator to display the current state of the output. This helps the user in monitoring the status of the field devices and helps to save energy.

Conclusion

In conclusion, the LT4HT-AC240V time delay relay is an effective tool for controlling a range of industrial applications. It is user-friendly and can be set to the desired time delay with ease. The on/off indicator helps to monitor the current status of the output and it is also energy-efficient. All in all, it is a great device for industrial use.

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