ABB REM543BM215AAAB high-performance digital relay module_Xiamen XingRuiJia Import and Export CO,LTD

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ABB REM543BM215AAAB

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.
ABB REM543BM215AAAB