Description
The ABB 1MRK002122-ABR01 is a specialized communication interface module designed for the Relion series of protection and control relays. It enables high-speed data transmission between the relay and station-level automation systems, supporting critical grid protection protocols and ensuring real-time monitoring of electrical power parameters.
Technical Parameters
- Model: 1MRK002122-ABR01
- Interface Type: RS-485 / Fiber Optic (depending on sub-configuration)
- Protocol Support: IEC 61850, DNP3, Modbus, or SPA
- Data Rate: Up to 100 Mbps (Ethernet-based variants)
- Power Supply: Internal via relay backplane (5V/12V DC)
- Connector Type: RJ45 or ST/LC Fiber ports
Product Specifications
- Compatibility: ABB Relion 650/670 series protection relays
- Isolation: 2.5 kV RMS dielectric strength
- Mounting: Internal plug-in slot on the relay hardware
- Diagnostics: LED indicators for Tx/Rx activity and Link status
- Environment: Tested for high EMI/RFI substation environments
- Compliance: IEEE 1613 and IEC 61850-3 standards
Application Areas
- Transmission and distribution substation automation
- Smart grid monitoring and wide-area protection
- Industrial power plant relay communication
- Renewable energy (wind/solar) grid integration
- High-voltage transformer and feeder protection
Product Q&A
- Q: Which relay series is this module primarily used with?
- A: It is predominantly used with the ABB Relion 670 and 650 series, such as the REF670 or RET670.
- Q: Does it support redundant network topologies?
- A: Yes, when configured for IEC 61850, it supports PRP (Parallel Redundancy Protocol) for bumpless failover.
- Q: Can this module be installed in the field?
- A: While it is a plug-in module, installation should be performed by qualified personnel to ensure correct firmware synchronization.

