Sweden
ABB REM543BM215AAAB Product Overview
| Item | Description |
|---|---|
| Product Positioning | Core computing module of the REX543 series digital protection relays, serving as the main control unit for multifunctional protective relays. |
| Core Hardware | Built on a high-performance 32-bit DSP + FPGA architecture, providing powerful real-time computing capability. |
| Protection Functions | Supports multiple protection algorithms, including overcurrent, earth fault, differential, distance, voltage, and frequency protection. Fully meets the protection requirements of medium-voltage distribution networks (10 – 35 kV). |
| Communication Interfaces | RS-485 and Ethernet (supporting IEC 61850), compatible with industrial protocols such as Modbus RTU and Profibus DP. |
| Protection Rating | Depending on the supplier, available with IP20 (indoor) or IP65 (outdoor) protection, offering resistance to dust and water ingress. |
| Operating Environment | Temperature range: −25 °C to +70 °C (some variants up to −40 °C to +85 °C); humidity: 0 % to 95 %. |
| Safety & Certifications | Complies with IEC 60255 standard; rated SIL2 safety integrity level; certified by CE, RoHS, UL, and ATEX. |
| Electrical Parameters | Input voltage: 100 – 250 V AC; output voltage: 24 V DC (or 100 – 250 V AC); rated current: 10 A; contact configuration: SPST-NO. |
| Typical Applications | Medium-voltage distribution networks, transformer protection, industrial motor protection, petrochemical plants, and railway power systems. |
| Dimensions / Weight | Approx. 150 mm × 100 mm × 50 mm; weight 1.2 – 2.5 kg (may vary slightly by supplier). |
Summary
The ABB REM543BM215AAAB is a high-performance digital relay module featuring comprehensive protection capabilities. Designed for medium-voltage distribution and critical industrial systems, it combines strong computational performance, versatile communication interfaces, and rigorous safety certifications—making it an essential component for enhancing power system reliability.
