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Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 1MRK002246-BE |
| Manufacturer | ABB |
| Product Type | Control System Module / Control Board |
| Series | 1MRK Series |
| Common Associated Systems | Relion 670 (RED670, REL670, REC670), Freelance 800F, AC 800F |
| Operating Voltage | 24V DC (typical; some variants may use backplane power) |
| I/O Capacity (Reference) | 16 Inputs / 16 Outputs (varies by hardware version) |
| Communication Interfaces | MODBUS RTU, RS-485, CANopen, backplane bus |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions (Approx.) | 120–180mm x 80–130mm x 20–40mm |
| Weight (Approx.) | 0.2 – 0.5 kg |
| Protection Rating | IP20 (cabinet-installed) |
| Certifications | CE, UL, CSA (typical) |
Main Features and Advantages
Seamless system integration: The ABB 1MRK002246-BE is engineered for plug-and-play integration within ABB’s Relion 670 series and Freelance 800F DCS platforms. As an internal system board, it communicates via the backplane bus or dedicated interfaces, enabling rapid data exchange with the main CPU and other modules within the host chassis . This integration ensures that the ABB 1MRK002246-BE can be installed as a direct replacement with minimal system disruption, preserving existing configuration and wiring.
Flexible communication and I/O capabilities: Equipped with multiple communication interfaces including RS-485, CANopen, and MODBUS RTU, the ABB 1MRK002246-BE facilitates seamless integration into industrial networks and legacy systems . With support for up to 16 inputs and 16 outputs (depending on configuration), the module provides flexible connectivity for sensors and actuators, enabling effective data acquisition and control in complex automation environments .
Robust industrial-grade construction: The ABB 1MRK002246-BE is built with high-quality electronic components to withstand harsh industrial conditions. It operates reliably across a wide temperature range from -20°C to +70°C and maintains stable performance even in demanding substation and factory environments . With IP20 protection when installed inside control cabinets, the ABB 1MRK002246-BE is shielded from dust and accidental contact, ensuring long-term operational reliability . The board’s compact form factor optimizes space utilization within equipment enclosures while delivering full functionality.
Critical replacement value: For plant maintenance teams, the ABB 1MRK002246-BE represents a critical inventory item. When a failure occurs in a RED670 protection relay or similar ABB equipment, having a spare ABB 1MRK002246-BE on hand minimizes downtime by enabling immediate, like-for-like replacement. Unlike generic modules, the ABB 1MRK002246-BE retains all board-specific configuration and firmware compatibility, ensuring that the restored system operates identically to its original state .
