H3JA-8A AC100-120 5M

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Time delay relays (TDRs) are a form of electromechanical relays used to protect electrical circuits, machines, or systems from undesired actions, and to provide a delayed response to the event that trips their relay contacts. The H3JA-8A AC100-120 5M is a type of time delay relay that uses adjustable time delays to provide the desired response. In this article, the features, applications, and working principles of the H3JA-8A AC100-120 5M time delay relay will be discussed.

Features

The H3JA-8A AC100-120 5M is designed to provide a consistent output signal even when there is a voltage drop and/or power interruption. This feature ensures that the delay time is accurate even in environments that may be subject to power outages. Additionally, the relay’s time delay can be adjusted from 1 to 5 minutes, allowing for more precise timing. The relay’s output is rated at 10A at 120VAC, making it suitable for a variety of applications.

Applications

The H3JA-8A AC100-120 5M time delay relay is suitable for a variety of applications, such as closing and opening of contacts, switch-on and switch-off of a circuit, and fan control. It can also be used to control the process equipment such as pumps, air compressors, motors, and other electrical appliances. Additionally, it is suitable for use in automatic systems, where it can be used to implement safety control for entering and leaving areas. Finally, it can also be used to connect various circuits, for example, one could use this relay to connect the power supply of two systems when the first system shuts down.

Working Principle

Time delay relays such as the H3JA-8A AC100-120 5M operate by having a time delay circuit, which is connected to the voltage source. The time delay circuit is used to delay the circuit activation from the moment it is powered. When the voltage is supplied to the time delay circuit, a timer begins to count down until a predetermined voltage is achieved. At this point, the relay contacts close, allowing the circuit to begin its operation.

The timer is adjustable and can be set to the desired delay time. The adjustable time delay is achieved by connecting resistors in series with the voltage source. The resistors are set to the desired resistance, and the voltage is adjusted accordingly. This allows for accurate timing of the relay’s activation.

Once the timer has completed its countdown, the relay closes its contacts, activating the circuit and beginning the operation. When the timer is finished, the circuit will deactivate and the relay will open its contacts. The H3JA-8A AC100-120 5M is designed to provide accurate and reliable timing for a wide variety of applications.

Conclusion

The H3JA-8A AC100-120 5M is a time delay relay designed to provide accurate and reliable timing for a variety of applications. It can be used to control the process equipment such as pumps, air compressors, motors, and other electrical appliances, as well as to connect the power supply of two systems when the first system shuts down. The adjustable time delay circuit ensures that the delay time is exact, and the 10A at 120VAC output rating makes it suitable for many applications. With its accuracy and reliability, the H3JA-8A AC100-120 5M time delay relay is an ideal choice for applications requiring precise time delay.

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