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Phone：+86 17062388866Description
The ABB REM620A_F NAMBBABA33E5BNN1XF is a state-of-the-art Motor Protection Relay designed for critical industrial motor management across demanding sectors like mining, water treatment, and power generation. As part of ABB’s Relion® 600 series, this comprehensive protection device integrates advanced thermal modeling, real-time diagnostics, and customizable protection functions to safeguard motors ranging from 50 kW to 20 MW. The REM620A_F NAMBBABA33E5BNN1XF combines precise electrical protection (phase unbalance, locked rotor, undercurrent) with mechanical supervision (bearing temperature, vibration analysis) through its 8 analog and 16 digital I/O channels. Featuring dual Ethernet ports with IEC 61850 protocol support and Modbus TCP integration, the relay enables seamless data exchange with DCS/SCADA systems while operating reliably in -40°C to +70°C environments with 50g shock resistance.
Engineered for predictive maintenance, the REM620A_F NAMBBABA33E5BNN1XF incorporates ABB’s patented “Thermal Capacity Calculation” technology that continuously monitors stator and rotor heating based on actual load profiles rather than simple current thresholds. This model variant (identified by the NAMBBABA33E5BNN1XF suffix) includes enhanced cybersecurity with IEC 62443 compliance, secure role-based access, and encrypted communication for critical infrastructure protection. With its 5-inch color LCD and intuitive menu structure, the REM620A_F NAMBBABA33E5BNN1XF simplifies commissioning while providing waveform capture and event recording capabilities for rapid fault analysis – reducing motor downtime by up to 40% in process-critical applications.
ABB REM620A_F NAMBBABA33E5BNN1XF
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | REM620A_F NAMBBABA33E5BNN1XF |
| Manufacturer | ABB |
| Product Type | Motor Protection Relay |
| Protection Functions | Thermal O/L, Stall, Earth Fault, Phase Loss, Vibration |
| Motor Power Range | 50 kW – 20 MW |
| Voltage Input | 100-480V AC (phase-neutral) |
| Current Input | 1A/5A configurable |
| I/O Configuration | 8 AI / 16 DI / 10 DO |
| Communication | 2x Ethernet (IEC 61850, Modbus TCP), RS-485 |
| Display | 5-inch color LCD with capacitive touch |
| Operating Temperature | -40°C to +70°C |
| Cybersecurity | IEC 62443-3-3 SL2, Role-Based Access |
| Mechanical Robustness | 50g shock, 5g vibration (10-150Hz) |
| Protection Certifications | UL 508, IEC 60255, ATEX Zone 2 |
| Dimensions | 178 mm x 144 mm x 142 mm (H x W x D) |
| Mounting | DIN rail or panel |
Main Features and Advantages
Intelligent Thermal Protection: The REM620A_F NAMBBABA33E5BNN1XF uses real-time thermal modeling of rotor/stator heating based on motor design parameters (RTD inputs optional), preventing nuisance trips during legitimate start cycles while accurately detecting overloads. This extends motor life by 15-20% compared to conventional bi-metal relays.
Mechanical Condition Monitoring: Integrated vibration analysis (via external sensors) detects bearing wear, imbalance, and misalignment. Bearing temperature inputs trigger alarms before catastrophic failure. The relay correlates electrical anomalies with mechanical stress patterns for predictive maintenance scheduling.
Cybersecurity and Integration: Hardware-enforced user authentication and encrypted communications meet IEC 62443 standards. Native IEC 61850 GOOSE messaging enables fast (<10ms>REM620A_F NAMBBABA33E5BNN1XF integrates with ABB Ability™ for cloud-based motor health analytics.
Diagnostic Capabilities: 128-cycle waveform capture and 10,000-event recording identify root causes of faults. Motor start trend logging analyzes acceleration characteristics to detect load anomalies or coupling issues.
Application Field
The REM620A_F NAMBBABA33E5BNN1XF protects critical motors in:
Mining: Prevents crusher motor failures due to mechanical jams and voltage dips in remote sites.
Water Treatment: Safeguards pump motors against dry-running and phase unbalance during generator switchover.
Power Generation: Monitors boiler feed pump vibration during turbine ramp-ups.
HVAC: Manages chiller motor restarts after power recovery with built-in under-voltage sequencing.
Manufacturing: Detects conveyor belt slippage via current signature analysis.
Oil & Gas: Implements SIL 2-certified shutdown logic for gas compressor motors in hazardous areas.
ABB REM620A_F NAMBBABA33E5BNN1XF
Related Products
REX521: Feeder protection relay for switchgear integration.
RMD620: Differential motor protection for high-voltage motors.
CMA142: Vibration sensor compatible with REM620A_F NAMBBABA33E5BNN1XF.
CP635-TC: HMI for local relay diagnostics and control.
REF615: Feeder protection relay for distribution networks.
ABB Ability™ CM: Cloud analytics platform for motor health insights.
TA50: Test adapter for relay calibration.
Installation and Maintenance
Pre-installation preparation: Verify CT/VT ratios match motor specifications. Configure motor parameters (FLA, service factor, thermal constants) using PCM600 software. Ensure proper grounding of shield wires at single point. Validate voltage inputs before energizing the REM620A_F NAMBBABA33E5BNN1XF.
Maintenance recommendations: Perform thermal model calibration annually using motor RTD data. Test protection functions via front-panel simulator quarterly. Update firmware only with ABB-signed packages to maintain cybersecurity compliance. Clean ventilation slots in dusty environments biannually. Replace the REM620A_F NAMBBABA33E5BNN1XF using DIN rail quick-release without disconnecting wires.
