Parameter Value / Range Notes Product Series EOCR-3EZ Multifunctional Electronic Motor Protection Relay Model EOCR3EZ-80AUH Specific model code Protection Functions Overcurrent, Undercurrent, Phase Loss, Reverse Phase, Unbalance, Locked Rotor, Jamming, Ground Fault Current Setting Range (OC) 5 ~ 80 A (Primary) "80" designation indicates this range Current Extension Up to 960 A Using external CTs with the 05 type (0.5-7A secondary) Ground Fault Setting 0.02 ~ 3 A Control Voltage (AUH) 100 ~ 240 VAC/DC (Wide Range) Suitable for universal control power Contact Configuration (A-Type) 2 Independent Relays: • OL: 1a (97-98) for Overcurrent/Locked Rotor • GR: 1a (57-58) for Ground Fault SPST-NO contacts Contact Rating 3A / 250V AC (Resistive load) Overcurrent (O-TIME) Definite: 0.2 ~ 30 sec Inverse: 1 ~ 30 class Selectable time characteristic Undercurrent (U-TIME) 0.5 ~ 30 sec / OFF Ground Fault Trip Time 0.05 ~ 10 sec (Definite time) Start Delay (D-TIME) 1 ~ 200 sec Phase Loss Trip Time ≤ 3 sec Phase Unbalance Trip Time ≤ 8 sec Reverse Phase Trip Time 0.1 ~ 0.3 sec Measurement Accuracy ± 1% (RMS Current Measurement) Mounting Type 35mm DIN-Rail or Panel Mount Wiring Method Through-hole Type (H) Window-type for main conductors Operating Temperature -20°C to +60°C Frequency Response 20 ~ 400 Hz Suitable for inverter applications Display 7-segment LED Shows current, leakage, and trip causes