Description
Key Technical Specifications
- Power Supply: 24-250 V DC / 48-240 V AC
- Communication Protocols: IEC 61850 MMS/GOOSE, line differential via multimode fiber
- Protection Functions: Stabilized and instantaneous line differential, breaker failure, directional overcurrent
- Measurement: Three-phase currents, residual quantities, sequence components
- I/O Capacity: Modular TRM, IOM, BIM options
- Operating Temperature: -25 to +70 °C
- Mounting: 19″ rack, 6U height variants
- HMI: Graphical display with local control
- Differential Link: Multimode fiber optic interface
- Standards: IEC 61850, IEC 60255
- Application: Overhead lines and cable feeders
- Firmware: Verify revision via PCM600

Product Introduction
Transmission line protection teams face tight windows during outages when a differential IED fails. The ABB RED670 1MRK002122-ABR02 serves as a line differential protection IED equipped with multimode fiber communication capabilities in the Relion 670 series.
This configuration supports fast unit protection for overhead lines and cables. It integrates backup functions and handles single or multi-breaker setups, making it practical where fiber links already exist in the substation design.





