Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Time Delay Relays are an important component in industrial automation, providing adjustable timer intervals to control several types of mechanical and electrical actuators for a specific duration of time, and then repeating this action in regular intervals. One popular type of Time Delay Relay is the H3YN-21 AC 100-120, a multifunction relay with six built-in timing ranges of 0.05s to 1000h. This versatility allows it to control on/off cycles in applications in many different industries.

How Does the H3YN-21 AC 100-120 Work?

The H3YN-21 AC 100-120 is a multifunctional relay used primarily for time delay applications. It is designed with a built-in controller with six timing ranges from 0.05s to 1000h. Depending on the application, the user can set the various timer spans from 0.05s to 1000h to control On/Off cycles. This type of relay contains a DPDT (Double Pole Double Throw) contact and a Single Pole Double Throw (SPDT) contact that is used to activate the timer circuit.

The H3YN-21 AC 100-120 is an electromechanically operated relay with a timing cycle that can be set through jumper settings on the front of the unit. It is designed with two triacs and a capacitor that initiates the start of the timing cycle. Once the timing cycle is started, it will activate the SPDT contact to switch On/Off depending on the set time delay interval.

Common Applications

The versatility of the H3YN-21 AC 100-120 makes it useful for a variety of applications throughout many industries. It is commonly used to control On/Off cycles in industrial automation and process control, as well as in amperage and voltage regulation.

The H3YN-21 AC 100-120 is often used in applications such as home automation systems, automatic door openers, and in other applications involving motor control. It is often used together with other components such as photoelectric sensors, encoders, proximity switches, and limit switches. It is also used in the building and fire safety industries for smoke and heat detectors, emergency lighting, fire suppression systems, and access control.

The H3YN-21 AC 100-120 is also suitable for higher current, higher voltage SCR control systems. In these applications, it is used to control the power regulator which allows the user to set the voltage or current levels. This application requires a reliable time delay relay with a high contact rating.

Conclusion

The H3YN-21 AC 100-120 is a versatile Time Delay Relay with six built-in timing ranges. Its wide range of adjustable time intervals makes it a suitable component in industrial automation, motor control, home automation systems, and voltage and amperage regulation. The relay is also suitable for higher current, higher voltage SCR control systems and is commonly used in building and fire safety. The H3YN-21 AC 100-120 provides reliable control of On/Off cycles with its built-in capacitors and two triacs.

The specific data is subject to PDF, and the above content is for reference