ABB 3BHE009681R0101 SCR module

Product manual:

Protection Features: The REF620 offers a wide range of protection features. Used to detect and respond to anomalies and faults in power systems. It can monitor current, voltage, frequency and other parameters. And operate according to preset protection logic and algorithms to protect the stable operation of equipment and power systems. Common protection functions include overcurrent protection, trip protection, differential protection, ground fault protection and so on.
Control functions: The REF620 controls equipment and operations in the power system. It can receive commands from the upper control system. And perform the corresponding operations. For example, the closing and opening of circuit breakers. Switching operation, etc. Through communication with other devices and systems. The REF620 enables remote control and monitoring of the power system.
Communication function: The relay protector supports a variety of communication interfaces and protocols. For data exchange and communication with other devices and systems. It can be over Ethernet. Serial interface, field bus, etc., and superior control system. SCADA systems and other protection and control devices communicate.

Product details picture:

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