- Model: RET670 1MRK004816-CB
- Brand: ABB
- Series: Relion 670
- Core Function: Transformer, generator, cable, and line protection
- Type: Pre-configured protection IED
- Key Specs: Supply 24 VDC or 48 VDC, 10 W power consumption
- Key Specs: IEC 61850, Modbus, DNP3
- Key Specs: 2 SPDT output contacts
- Condition: New Original (New Surplus), not refurbished
- Key Technical Specifications
- Model: RET670 1MRK004816-CB
- Product ID: 1MRK004816-CB
- Manufacturer: ABB
- Family: Relion 670 series
- Application: Generator-transformer, transformer, cable, and line protection
- Core functions: Differential protection (87T), overcurrent, earth-fault, distance, thermal, breaker failure
- Additional features: CT saturation restraint, inrush current restraint, harmonic restraint, sensitive differential
- Communication: IEC 61850, Modbus, DNP3
- Control: Local and remote apparatus control; secure bay/station interlocking
- Supply voltage: 24 VDC or 48 VDC
- Power consumption: 10 W (typical)
- Mounting: DIN rail compatible
- Measurement accuracy: ±1%
- Output contacts: 2 SPDT
- Product Introduction
The ABB RET670 1MRK004816-CB is a pre-configured protection IED used for generator-transformer, transformer, cable, and line protection in high-voltage networks. It is selected when the bay needs fast differential protection, secure interlocking, and communications aligned to IEC 61850.







