The ABB RED670 is a premium Intelligent Electronic Device (IED) designed for the protection, monitoring, and control of overhead lines and cables. As part of the Relion 670 series, it excels in line differential protection, providing high-speed phase-segregated communication and advanced distance protection to ensure grid stability and rapid fault isolation.
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Product Specifications
| Feature | Details |
| Model Name | RED670 |
| Product ID | 1MRK002810-AC |
| Country of Origin | Sweden |
| Protection Type | Line Differential (Phase Segregated) |
| Communication | IEC 61850 Edition 1 & 2, Ethernet |
| Dimensions (WxHxD) | 1/1 x 19″ Rack Case (Approx. 448 x 266 x 242 mm) |
| Net Weight | Approximately 8.2 kg |
| Power Supply | 110-250V DC / 100-240V AC |
| Analog Inputs | Up to 24 CT/VT Inputs (Configurable) |
Operational Precautions
- CT Secondary Circuit: Never open a Current Transformer (CT) secondary circuit while the primary is energized; high voltages can occur, posing a lethal risk and damaging the IED.
- Firmware Compatibility: Ensure the version of PCM600 (Protection and Control IED Manager) matches the IED’s hardware version before attempting configuration uploads.
- Communication Link: Line differential protection relies on stable fiber optic or galvanic communication between ends; verify signal strength and latency during commissioning.
- Grounding: The IED casing must be securely connected to the station earthing system to ensure electromagnetic compatibility and operator safety.
FAQ (Questions & Answers)
Q: Can the RED670 handle multi-terminal lines? A: Yes, the RED670 is designed to protect lines with up to five line ends, providing synchronized differential protection across complex network topologies.
Q: Does this module support “Distance Protection” as well? A: Yes, the RED670 typically includes full-scheme distance protection as a backup or integrated function alongside the differential protection.
Q: What is the purpose of the 1MRK002810-AC code? A: This is the ordering/hardware identification code that specifies the particular housing size, I/O configuration, and internal processing power of the unit.
Similar Relion 670 Series Models
- REL670 (1MRK002812-AC): Specialized Line Distance Protection IED.
- RET670 (1MRK002816-AC): Transformer Protection IED for two or three winding transformers.
- REC670 (1MRK002814-AC): Bay Control IED for high-voltage substation automation.
- REB670 (1MRK002820-AC): High-speed Busbar Protection IED.
- REG670 (1MRK002818-AC): Comprehensive Generator Protection IED.



