Description
The ABB REC650 1MRK008514-AB is a high-performance, multifunction protection and control relay from ABB’s Relion® product family, specifically engineered for demanding applications in medium-voltage distribution networks. Designed as a bay controller for feeders, motors, transformers, and capacitor banks, the REC650 combines comprehensive protection, precise metering, advanced control logic, and full substation automation capabilities within a single compact unit. The suffix 1MRK008514-AB denotes a specific hardware and firmware configuration—typically including IEC 61850 communication, a defined I/O module set, and regional compliance certifications.
As part of ABB’s 650 series, the REC650 1MRK008514-AB supports deterministic operation with fast trip times (<20>IEC 61508 SIL 2 and IEC 61850-3/IEEE 1613 standards, making it suitable for use in harsh industrial environments such as oil & gas platforms, mining operations, and utility substations where electromagnetic interference, temperature extremes, and vibration are common.<!--20-->
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | REC650 1MRK008514-AB |
| Manufacturer | ABB Ltd. (Relion® Series) |
| Product Type | Multifunction Protection & Control Relay |
| Primary Application | Feeder, Motor, Transformer, or Capacitor Bank Protection |
| Standards Compliance | IEC 61850 Ed. 2, IEC 61508 SIL 2, IEEE C37.94, IEC 60255 |
| Communication Protocols | IEC 61850 (MMS, GOOSE, SV), Modbus TCP/RTU, DNP3, IEC 60870-5-103 |
| Sampling Rate | Up to 4 kHz for fault recording |
| Trip Time | <20><!--20--> |
| Analog Inputs | Typically 5 A or 1 A CT inputs (3-phase + neutral); optional VT inputs |
| Digital I/O | Configurable (e.g., 10 binary inputs, 6 outputs—depends on variant) |
| Display | 4.3″ color TFT LCD with touchscreen (on newer revisions) |
| Power Supply | 24–250 VDC or 100–240 VAC (dual-range) |
| Operating Temperature | -25°C to +70°C |
| Mounting | 19″ rack-mount or panel-mount (with adapter) |
| Certifications | CE, UL, cUL, IEC 61850-3, IEEE 1613, KEMA, GOST |
Main Features and Advantages
Integrated protection, control, and automation in one device
The REC650 1MRK008514-AB eliminates the need for separate relays, meters, and PLCs by embedding programmable logic (via PCM600 or Automation Builder), sequence-of-event recording, and automatic reclosing functions. This reduces panel space, wiring complexity, and lifecycle costs.
Native IEC 61850 support with GOOSE messaging
Unlike retrofit solutions, the REC650 was designed from the ground up for digital substations. Its GOOSE (Generic Object Oriented Substation Event) capability enables ultra-fast peer-to-peer tripping and interlocking without hardwired contacts—critical for arc flash mitigation and busbar protection schemes.
Advanced diagnostics and cybersecurity
Built-in features include thermal overload modeling, breaker wear monitoring, and cyber-hardening options (e.g., role-based access, audit logs, TLS encryption). The optional web server allows secure remote viewing of real-time data, event logs, and phasor diagrams via standard browsers.
Seamless engineering with ABB PCM600
Configuration, testing, and firmware updates are performed using ABB’s PCM600 tool suite, ensuring consistency across fleets. Configuration files (.CID, .SCD) can be backed up and restored identically—enabling rapid replacement of failed units like the 1MRK008514-AB without re-engineering.
Application Field
The REC650 1MRK008514-AB is widely deployed in:
Utility distribution substations – protecting radial and looped feeders with sensitive earth-fault detection.
Industrial power systems – safeguarding large motors in petrochemical plants, steel mills, and water treatment facilities.
Renewable energy integration – used in solar farm collector feeders and wind turbine step-up transformers.
Mining and offshore platforms – where SIL 2 certification and rugged design ensure safety in classified areas.

Related Products
PCM600: ABB’s engineering software for configuration, testing, and diagnostics of REC650
REF615 / REL650: Sister relays in the 650 series for transformer and line applications
1MRK008514-AC / -AD: Alternate firmware/hardware revisions of the same base model
ABB NS250 / NS500: Network switches optimized for IEC 61850 traffic with REC650
RET650: Test equipment for validating REC650 protection functions
Relion® Configurator: Online tool for verifying order codes like 1MRK008514-AB
Installation and Maintenance
Pre-installation:
Verify that the 1MRK008514-AB matches the original unit’s order code to ensure identical I/O and firmware.
Back up the existing relay’s configuration (.CFG or .CID file) before removal.
Confirm CT/VT ratios and grounding scheme align with the protection settings.
Maintenance:
Use PCM600 to run self-diagnostics and review event records quarterly.
Inspect terminal blocks for torque integrity and signs of overheating.
Keep firmware updated—but only after validation in a test environment.
Store spares in ESD-safe packaging at stable room temperature.



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