Description
The ABB REM543M213AAAA is a microprocessor-based numerical protection, control, and monitoring terminal from ABB’s product family, specifically tailored for medium-to-large asynchronous/synchronous motors, generators, and generator-transformer units in industrial and utility applications.
As part of the 500-series machine terminal lineup, it integrates comprehensive electrical protection, advanced thermal modeling, operational metering, local control, and custom programmable logic into a single hardware platform.
Technical Specifications
| Parameter | Value |
| Manufacturer | ABB |
| Product Series | REM543 Machine Protection Terminal |
| Model / Ordering Code | REM543M213AAAA |
| Primary Application | Medium/High-Power Motor and Generator Protection & Control |
| Enclosure Type | Flush-mounted case with integrated graphical display and MMI push-buttons |
| Enclosure Protection | IP54 (front with mounting seal), IP20 (rear terminals) |
| Auxiliary Power Supply | Standard multi-voltage auxiliary power supply range (configured via hardware variant code) |
| Energizing Inputs | Conventional CT/VT inputs (supports 1 A / 5 A secondary current transformers and standard voltage inputs) |
| Communication Interfaces | Front optical RS-232 port (for configuration via CAP501 / PCM600); rear communication module slots supporting standard substation protocols (e.g., IEC 61850, Modbus, Profibus) |
Key Protection and Monitoring Functions
- Thermal Overload Protection (49M / 49G): Dynamic thermal modeling accounting for heating and cooling time constants, stator/rotor currents, and ambient temperature biasing.
- Start-Up Supervision / Stall Protection (48 / 14 / 66): Monitors excessive start times, locked rotor conditions, and limits consecutive starts to prevent core overheating.
- Short-Circuit & Earth Fault Protection (50/51, 50N/51N, 67/67N): Instantaneous and time-delayed overcurrent, negative phase sequence (46), and sensitive directional/non-directional earth fault options.
- Advanced Condition Monitoring: Circuit breaker wear tracking, trip circuit supervision, self-diagnostics, and high-speed disturbance/waveform recording (up to 16 analog and 16 digital channels).
- Programmable Logic (CFC): Built-in Configurable Function Calculator allowing custom interlocking, automation logic, and mimic display configurations without requiring external PLCs.
Procurement and Availability
- Condition: New Surplus / Factory Sealed / Refurbished Tested options available through specialized legacy automation distributors.
- Lead Time: 1 to 5 business days for stock items; verify availability for specific hardware configuration strings or obsolete module revisions.
- Warranty: 12-month standard warranty from date of shipment.
- Price: Indicative market pricing applies. Price subject to market conditions; contact us for a firm quote.
Integration and Compatibility Notes
- Software Configuration: Configured using ABB engineering tools (such as CAP501 or PCM600 via the front optical communication port) to modify protection parameter sets, matrix mappings, and logic blocks.
- Substation Automation: Designed for seamless integration into higher-level SCADA, DCS, or substation automation systems via communication adapter modules supporting open communication protocols.
- Hardware Handling: Ensure proper grounding and follow ESD safety precautions when handling communication cards, replacement modules, or servicing rear terminal blocks.




