HRDB321

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--

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Time Delay Relays

Time delay relays are electronic devices used to control the timing of electrical applications. The HRDB321 is one such time delay relay model, designed to provide functions on applications ranging from class B overcurrent protection to motor control applications. This article will provide an overview of the HRDB321 model, its application fields and working principles.The HRDB321 is a very versatile device. It can be used to provide an adjustable delay-on and/or delay-off feature in a broad range of applications. This includes controlling lights, motors, fans, pumps, and other devices. It is commonly used for controlling automatic doors, lights, HVAC systems, and security systems.The HRDB321 has several features that make it an attractive option for a multitude of applications. It is easy to install and setup. It comes with a variety of adjustable parameters that allow the user to customize its performance to their specific needs. It is equipped with a life cycle of up to 100,000 operations, and its low power consumption makes it highly energy efficient. It also has a safety measure capability - when voltage is higher than normal, the HRDB321 has an integrated overvoltage protection.The HRDB321 time delay relay works by applying voltage across the two input contacts of the relay. The electromagnetic field created by the current passing through the relay coil pulls the relay armature into contact, completing the circuit. The time delay set for the relay determines how long it will stay contacted. After this delay has elapsed, the current is cut off and the relay armature returns to its open position, breaking the circuit.In addition to its time delay functionality, the HRDB321 also offers a variety of additional features. It has a time-lag output, which delays the voltage through the output contacts to prevent voltage spikes. It also has a timing cycle counter, allowing it to be used for repetitive applications. Lastly, it includes a multifunction algorithm which allows for a delay time proportional to the on/off cycles.The HRDB321 is an efficient and reliable time delay relay device, and is suitable for a variety of electronic and electric applications. While its time delay functionality makes it ideal for automation projects, it is also a highly customizable device. With various adjustable parameters, the user can tailor the performance of the HRDB321 to their specific needs.

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