ABB REF545KB133AAAA Protective Relay Module Now Available at Apextron
Product Highlights

Technical Specifications
- Brand: ABB
- Rated Voltage: 415 V
- Protection Class: 5P20
- Communication: Modbus, Ethernet/IP
Key Features
- Short-circuit & overload protection
- IP20 environmental rating
- -25°C to +70°C operation
- IEC 60947-2 certified
Application Scenarios
This protective relay module is ideal for:
- Power distribution systems
- Industrial automation plants
- Energy management systems
- Smart grid applications
Why Choose Apextron?
Our Advantages
- 20+ years industry experience
- 60,000+ in-stock items
- Global shipping via UPS/DHL
- 1-year warranty
Premium Brands
- ▶ ABB
- ▶ GE
- ▶ FOXBORO
- ▶ TRICONEX
- ▶ BENTLY NEVADA
About Apextron: Specializing in DCS/PLC systems, servo controls, and robotic components from ABB, GE, Rockwell, etc. All products include 1-year warranty with global express shipping.








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