BENDER RCM475LY-7113 Residual Current Insulation Monitoring Module

I. Basic Product Information
Brand: German BENDER (a well-known brand for electrical insulation safety monitoring)
Model: RCM475LY-7113
Product Type: Residual Current Monitor (RCM) + Insulation Fault Location Module
Installation Method: Standard 35mm DIN rail installation, used in industrial cabinets
Power Supply Specifications: DC 24V
Applicable Power Grid: Single-phase / Three-phase AC TN, TT grounding systems

Core Measurement Parameters
Leakage Current Detection Range: 6mA – 600mA, Adjustable Sensitivity
Insulation Resistance Measurement Range: 0.1MΩ – 10GΩ, Measurement Accuracy ±2%
Fault Response Delay: 0 – 10s Adjustable, Can Avoid Instantaneous Interference False Alarms
Supplementary Equipment: Requires an external BENDER series zero-sequence current transformer, multi-channel insulation leakage inspection

Main Hardware Functions
1. Multi-channel Leakage Inspection
Supports simultaneous monitoring of multiple circuits, the panel LED indicators can precisely locate which circuit has leakage / insulation damage, quickly troubleshooting cables, motors, inverters, control cabinets grounding faults.
2. Two-level Alarm Relay Outputs
Warning Relay: When leakage reaches the preset warning value, used for remote indication by the upper-level DCS/PLC
Fault Relay: When leakage exceeds the safety threshold, can be linked to circuit breakers, emergency stop circuits to cut off the load, preventing electric shock and electrical fires
3. Communication Function
Equipped with RS485 interface, Modbus RTU protocol, can upload real-time leakage current, insulation resistance, fault circuits, alarm status to PLC, SCADA system, achieving remote centralized monitoring and fault traceability.
4. Fault Waveform Diagnosis
Can collect leakage fault waveforms, distinguish DC components, high-frequency harmonic leakage, accurately locate stray leakage current faults caused by non-linear loads such as inverters, servo systems, etc., avoiding frequent false trips.

Electrical Environmental Parameters
Operating Temperature: -20℃ – +60℃
Storage Temperature: -40℃ – +75℃
Protection Grade: IP20 (for cabinet installation)
Power Consumption: ≤12W
Certifications: CE, UL, Compliant with IEC62020 Residual Current Monitoring Standard

Typical Application Scenarios
Industrial production lines, uninterruptible power supply systems for data centers leakage protection
Insulation safety monitoring for photovoltaic, wind power, energy storage converters
Ground fault inspection for large-power variable frequency equipment in ports, metallurgy, papermaking, chemical industries
Online insulation monitoring for IT unint grounded power supply systems in hospitals, laboratories
VI. Distinction of Similar Series Models