The ABB RED670 1MRK000028-CAR01 is a high-performance protection relay from ABB’s Relion® series. It safeguards power transformers and generators in electrical substations. The relay delivers fast, accurate protection, control, and monitoring. As a result, it improves system reliability and prevents equipment damage during electrical faults. Users benefit from flexible communication, local control, and redundancy features.

Technical Specifications

• Model: RED670
• Submodel: 1MRK000028-CAR01

Electrical Ratings

• Rated Voltage: Up to 11 kV
• Rated Current: Up to 4000 A
• Frequency Range: 50/60 Hz

Communication Interfaces

• Ethernet
• RS485
• IEC 61850
• IEC 60870-5-103
• DNP3
• Modbus

User Interface

• Display: Graphical LCD for real-time monitoring and manual control

Redundancy

• Supports redundant configurations for improved system availability

Environmental Characteristics

• Environmental Rating: IP20
• Operating Temperature: –25°C to +70°C

Certifications

• IEC 61000-4-5
• IEEE C37.90.1

Physical Dimensions

• Size: 178 mm × 152 mm × 90 mm
• Weight:  2.5 kg