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⚙️ Product Overview – RET670 1MRK004816-AC | ABB Control Relay
The ABB RET670 1MRK004816-AC control relay is a high-performance, multi-functional protection and control unit specifically designed for transformer protection in complex power networks. With its versatile configuration capabilities, this relay delivers enhanced safety, precision, and adaptability across a broad range of high-voltage applications. Engineered as part of ABB’s reliable 670 series, the RET670 relay integrates seamlessly into digital substations while supporting IEC 61850-based communication protocols.
Its modular architecture allows for tailored protection schemes including differential protection, overcurrent detection, thermal monitoring, and voltage-based functionalities. Ideal for two-winding or three-winding transformers, the RET670 unit supports simultaneous protection of up to five winding groups, making it an excellent solution for power utilities and industrial operations demanding stringent reliability standards.
📊 Key Features & Technical Data
| Specification | Description |
|---|---|
| Model | RET670 1MRK004816-AC |
| Device Type | Transformer Protection & Control Relay |
| Voltage Rating | 24–250 V DC / 100–240 V AC |
| Frequency | 50/60 Hz |
| Input Channels | Up to 12 analog, 24 binary |
| Communication Protocols | IEC 61850 Ed.1 & Ed.2, GOOSE messaging, SNTP, MMS |
| Mounting | Rack-mounted modular unit |
| Display | Graphical LCD with soft key navigation |
| Event/Disturbance Recording | 1–2 ms resolution with circular memory buffer |
| Logic Configuration | IEC 61131-based logic editor support |
| Operating Temperature Range | –25°C to +70°C |
| Certifications | KEMA, CE, UL |
| Software Support | PCM600 Configuration Tool |
| Redundancy Support | Dual power supply & communication port redundancy |
🏭 Industrial Relevance
The RET670 is vital in modernizing and securing high-voltage transformer systems in power grids, especially where critical uptime and remote configurability are essential. In response to increasing demands for grid flexibility and resilience, this relay is playing a crucial role in digital substations worldwide. With a surge in smart grid development and real-time monitoring initiatives, devices like the RET670 are enabling power operators to implement smarter, self-healing systems.
In 2025, global investments in substation automation are projected to exceed $18 billion. ABB’s adaptive and interoperable relays such as the RET670 are positioned to play a central role in this ongoing industrial transformation.
🔗 Explore RET670 availability and pricing
🔗 Discover other ABB relay solutions
📌 You May Also Be Interested In:
| Similar Model | Description |
|---|---|
| RET670 1MRK004816-AA | Base variant with single redundant input |
| RET670 1MRK004816-AD | With enhanced IEC 61850 GOOSE messaging |
| REG670 1MRK002794-AA | Generator protection relay, 670 series |
| REL670 1MRK002820-AA | Line distance protection and control relay |
| REB670 1MRK001698-AA | Busbar protection with fast breaker failure |
| REF615 | Compact feeder protection, mid-tier |
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