Description
1. Product Title
ABB REM543CG212AAAA – Multifunction Motor Protection Relay (Relion® Series)
2. Product Overview
The ABB REM543CG212AAAA is a microprocessor-based multifunction motor protection relay from ABB’s Relion® 54x series, designed for comprehensive protection, control, and monitoring of medium- and low-voltage motors. It serves as a critical component in power distribution and industrial automation systems, ensuring safe and reliable motor operation.
This relay integrates advanced protection functions such as overcurrent, thermal overload, earth fault, and motor stall protection, while continuously monitoring key electrical parameters like current, voltage, and power. The REM543CG212AAAA enhances system reliability by detecting faults early, preventing equipment damage, and minimizing downtime. Its communication capabilities allow seamless integration into modern SCADA and substation automation systems, making it ideal for mission-critical applications.
3. Technical Specifications
- Brand: ABB
- Model: REM543CG212AAAA
- Warranty: One Year
- Condition: 100% New & Original
- Module Type: Multifunction Motor Protection Relay
- Series: Relion® 54x (REM 543)
- Rated Supply Voltage: 24–250 V DC / 48–250 V AC
- Current Inputs: 1 A / 5 A configurable CT inputs
- Motor Voltage Monitoring: Up to 690 V AC
- Frequency Range: 45–65 Hz
- Protection Functions: Overcurrent, thermal overload, earth fault, stall, phase loss, short circuit
- Measurement Functions: Current, voltage, power, energy, power factor
- Digital I/O: Multiple configurable inputs/outputs (approx. 6–8 DI / 4–6 DO depending on version)
- Communication: IEC 61850, Modbus RTU/TCP, optional DNP3
- Display: Integrated LCD with status indicators
- Operating Temperature: -25°C to +70°C
- Protection Class: IP40–IP54 (installation dependent)
- Mounting: Panel-mounted
4. Key Features & Benefits
- Comprehensive Motor Protection:
Integrates multiple protection functions (thermal, overload, stall, earth fault), ensuring complete motor safety in a single device. - Advanced Monitoring & Diagnostics:
Provides real-time measurement and event logging, enabling predictive maintenance and reducing unexpected failures. - IEC 61850 Communication Support:
Enables seamless integration into modern substation automation and SCADA systems for centralized control. - High Reliability in Harsh Environments:
Designed to operate in wide temperature ranges and industrial conditions, ensuring long-term stability. - Flexible Control Capabilities:
Supports motor starting methods (DOL, star-delta, soft starter), enhancing application versatility.
5. Application Scenarios
- Oil & Gas Industry:
Protects critical motors such as compressors, pumps, and fans, ensuring safe and continuous operation. - Power Generation & Substations:
Used for motor protection in auxiliary systems, including boiler feed pumps and cooling systems. - Mining & Heavy Industry:
Safeguards motors in crushers, conveyors, and mills, where high mechanical stress and load variations are common.
6. Frequently Asked Questions (FAQ)
- Q: What is the primary function of the REM543CG212AAAA?
A: It is a multifunction motor protection relay that provides protection, monitoring, and control for industrial motors. - Q: Is REM543CG212AAAA compatible with legacy systems?
A: Yes, it supports multiple communication protocols such as Modbus and IEC 61850, allowing integration with both legacy and modern automation systems.ABB PFEA111-65 (3BSE050090R65) ABB AI830A 3BSE040662R1 ABB 500PSM03 1MRB150038R1 ABB CP6615 1SAP561510R0001
