RE-431 seriesUser manual
AI powered energy savings

The RE-431 Series is a highly accurate, fully integrated, multiphase energy and power quality monitoring DIN-Rail mount device.
Superior analog performance, powerful AI acceleration and reliable security features enable accurate energy monitoring and power quality analysis.
The RE-431 Series offers complete power monitoring capability by providing total as well as fundamental measurements on rms, active, reactive, and apparent powers and energies.
Advanced features such as dip and swell monitoring, frequency, phase angle, voltage total harmonic distortion (VTHD), current total harmonic distortion (ITHD), and power factor measurements enable implementation of power quality measurements. The ½ cycle rms and 10 cycle rms/12 cycle rms, calculated according to IEC 61000-4-30 Class S, provide instantaneous rms measurements for real-time monitoring.
The RE-431 Series offers an integrated flexible waveform buffer that stores samples at a fixed data rate of 32 kSPS or 8 kSPS.