BENDER RCMA475LY Residual Current Monitoring

In TN and TT grounding systems, residual current monitoring is an important means to ensure personal safety and reliable equipment operation. Traditional residual current protection devices are mostly designed for AC residual current, but in frequency converters UPS、 In scenarios where battery chargers, six pulse rectifiers, and other devices are widely used, complex waveforms of smooth DC residual current, pulsed DC residual current, and superimposed DC components may occur in the system. Ordinary AC type residual current monitors are difficult to reliably identify such fault currents and are prone to missed or false alarms. BENDER RCMA475LY, as an AC/DC sensitive residual current monitor, is designed to solve this problem. It meets Type B requirements and is capable of monitoring AC, DC, and pulsed DC residual currents. It is suitable for grounding systems with DC fault currents or residual currents continuously greater than zero.