Overview

The ABB REM620 Motor Protection and Control unit is part of ABB’s Relion® product family, specifically the 620 series, which is engineered for demanding industrial and utility environments. It is tailored for motor protection, control, measurement, and supervision, ensuring reliable operation of motors in manufacturing and process industries. Moreover, the REM620 supports IEC 61850 communication standards, enabling interoperability and seamless integration into modern substation automation systems. In addition, its modular design and flexible configuration options make it suitable for both new installations and retrofit projects.

Technical Data

Typical Application

• Industrial motors in steel, paper, chemical, and energy sectors requiring continuous protection.

• Utility substations for motor drives in distribution and generation systems.

• Process industries where synchronous and asynchronous motors drive critical equipment.

• Widely adopted in manufacturing plants with high operational demands.

• Suitable for retrofit projects, replacing older electromechanical relays with modern digital solutions.

FAQ

Q1: What is the ABB REM620 used for?
A1: It protects, controls, measures, and supervises medium and large motors in industrial and utility environments.

Q2: Which communication standards does REM620 support?
A2: It supports IEC 61850, DNP3, Modbus®, and IEC 60870-5-103 protocols for interoperability.

Q3: Can REM620 be used in retrofit projects?
A3: Yes, it is designed for flexible integration into both new and existing systems.

Q4: What types of motors are supported?
A4: It provides protection for synchronous and asynchronous motors, including those requiring differential protection.

Q5: How does REM620 ensure communication reliability?
A5: It offers redundancy through PRP, HSR, and RSTP protocols, eliminating single points of failure.