ABB REF543KB127AAAA Advanced Protection Relay Module
The ABB REF543KB127AAAA is a high-performance relay module engineered for industrial power system protection. This advanced device safeguards electrical circuits against overloads, short circuits, ground faults, and phase disconnections. Its precision monitoring minimizes equipment downtime while ensuring operational safety in demanding industrial environments.
| Technical Specifications | |
|---|---|
| Brand | ABB |
| Model | REF543KB127AAAA |
| Voltage Range | 120 – 690 V AC |
| Protection Functions | Earth Fault, Overcurrent, Undercurrent, Phase Disconnection |
| Communication | Modbus RTU, Ethernet/IP |
| Dimensions | 225 x 112 x 112 mm |
| Weight | 1.5 kg |
Industrial Applications
This protection relay excels in:
- Power distribution systems in manufacturing facilities
- Motor protection circuits for heavy machinery
- Substation automation and grid management
- HVAC and critical infrastructure protection
Compatible with ABB’s SPA and REL series controllers. Withstands harsh environments (-25°C to +70°C) and meets IEC 61010-1, CE, and UL safety standards.
Vertex Industrial Services
Vertex Industrial sources industrial automation hardware globally, specializing in ABB, Siemens, Honeywell, and Rockwell products. We provide:
- 1-Year Warranty: Comprehensive after-sales support
- Expert Consultation: Technical guidance for system integration
- Global Sourcing: Can’t find your model? Contact us for custom sourcing
- Quality Assurance: Rigorous testing of all components
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