The RCM475LY-13 is a high-performance residual current monitoring module developed by Bender, specially designed for safe and stable operation of TN and TT industrial power distribution systems. This precision monitoring unit supports simultaneous detection of AC, DC and pulsed DC leakage currents, effectively solving potential safety hazards such as undetected weak residual current, unbalanced system grounding and untimely fault alarm in power equipment. It features adjustable alarm thresholds and pre-warning functions, enabling early risk identification and proactive system maintenance. Equipped with standard Modbus RTU communication, it realizes real-time data upload and remote parameter configuration for seamless integration with industrial monitoring systems. With universal AC/DC power adaptation and wide-temperature industrial tolerance, it ensures long-term stable operation in power systems, automated equipment and construction site electrical facilities, providing reliable electrical safety protection for system integrators and plant maintenance teams.