Description
ABB REC670 1MRK004814-AC serves as a bay control IED in the Relion 670 series. It handles protection, control, and monitoring for various substation bay configurations in medium- and high-voltage networks.
Field deployments often use this unit for incoming/outgoing feeders, transformer bays, or bus coupler applications where reliable breaker control and fast fault clearance matter. It integrates multiple protection functions with apparatus control in one device.
Choose this module when you need flexible configuration for single, double, or 1.5 breaker schemes. It offers solid performance in IEC 61850 environments, with typical trip times under 20 ms for main protections. Always verify the specific hardware variant and firmware against your project drawings.
Key Technical Specifications
- Rated Voltage Range: 110–550 kV (configurable applications)
- Power Supply Options: 24 V DC / 48 V DC / 125 V DC / 110-240 V AC
- Communication Protocols: IEC 61850, GOOSE, MMS, Modbus, DNP3
- I/O Capacity: Modular — up to multiple TRM, BIM, IOM modules (varies by config)
- Protection Functions: Overcurrent, differential, voltage, frequency, autoreclosing
- Control: Synchronism check, apparatus control, interlocking for up to 30 devices
- Operating Temperature: -25°C to +70°C (typical)
- HMI: Large local display for control and status
- Firmware: Verify specific revision (e.g., 2.2x range common)
- Case Size: 1/1, 3/4, or 1/2 of 19″ rack, 6U height
- Standards: IEC 61850, IEC 61131 compliant elements





