Modular design, compact size, flexible installation Measuring module with built-in ZCT Measure motor insulation resistance Low voltage restart, Power-on self-starting Max. 12 programmable digital inputs Max. 8 programmable relay outputs 2 analog outputs SOE record 320ms fault waveform record Ethernet port (Daisy chain) THD and harmonic rate up to 31st

INTRODUCTION WDH-31-580 is a protection device for low-voltage A.C motors and is applied to the motor applications with the rated frequency up to 50 Hz, rated voltage up to 690 VAC and rated current up to 800 A. The product has such functions as monitoring, controlling, protection and communication so as to provide the excellent protection for motors. FUNCTION Control mode Protection Buildings (Commercial building, school, hospital...) Industrial facilities (steel, petrochemical, electronic...) Utilities (railway, airport, water supply...)