HRDR121A4R

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, such as the HRDR121A4R, provide gateway protection to ensure network operation and stability. With its application field and working principle, HRDR121A4R effectively safeguards the functioning of communication networks. This Time Delay Relay works on the principle of delaying its contact to a predetermined time. It is manually set and reset and can be used to close and open the controlled circuit after a fixed time.

The applications of HRDR121A4R relay include protection of communication lines, PLC, logic control and other electronic systems; prevention of unexpected events; isolation detection; control of large systems; AC/DC power supply introduction delay; DC power supply fluctuation delay; and control timing of flow, speed, and temperature. It is suitable for dry contact input and various kinds of trigger signals, such as NORMAL CLOSE/NORMAL OPEN contacts, current signals, voltage signals, PLC logic circuit signals, or to switch high-frequency relay axes.

HRDR121A4R Time Delay Relay adopts advanced double-layer screen protection, and has the functions of normal/reverse connection, independent delay output, and electromagnetic compatibility. It is suitable for applications related to high precision. Moreover, it has passed various certification and safety tests such as CE, SGS, UL, CCC and C-Tick.

The working principle of HRDR121A4R Time Delay Relay can be simply explained as follows. A coil is connected with a delayed contact which is magnetically driven to turn on or off the desired control circuit. The contact of the coil is activated once the triggered control signal is provided, sending an electrical current into the system. The electrical current energizes the coil which then forces the contact to turn on/off the circuit. The flow of electrical current continues till the maximum limit is reached as controlled by the timer. This maximum limit can be customized or changed manually, depending on the end user’s requirement.

At the end, HRDR121A4R Time Delay Relay is a very useful device in safeguarding networks and industrial processes requiring timing functions. Delay contact output design, advanced double-layer screen protection, extended input voltage range, and independent output delay for each channel make this relay ideal for multiple applications in different industries.

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