Parameter Value Product Range EOCR (Electronic OverCurrent Relay) - FE420 Series Product Type Split-body Intelligent Motor Protection Relay Product Code / Model EOCR-FE420WRZ71 (also written as EOCRFE420-WRZ71) Current Setting Range 0.5 ~ 60 A (direct, WR type) With external CTs: up to 800 A or 960 A Control Supply Voltage (Us) 100-240 V AC/DC (Z71 type) Supply Frequency 50 / 60 Hz Power Consumption Not specified in search results Protection Functions Overcurrent (OC), Undercurrent (UC), Phase Loss (Open Phase), Reverse Phase (Reversal), Locked Rotor (Stall), Current Unbalance Analog Output 4-20 mA (isolated, current transmitter function) Time Characteristics Definite Time / Inverse Time (1-30 class) Time Settings Overcurrent Trip Delay: Definite time: 0.5-30 sec; Inverse time: 1-30 class Undercurrent Delay: 0.5-30 sec Phase Loss Trip Time: Within 3 sec Locked Rotor Delay: 0.5 sec after D-Time (definite time); 0.5,1-10 sec (stall) Reverse Phase Trip Time: 0.1 sec Current Unbalance Trip Time: Within 8 sec Display 7-segment LED (3-phase current values cycle at 5-second intervals, trip causes) Output Contacts OL (Overload): 1 NC + 1 NO (specifications not detailed in search results) Contact Rating Not specified in search results Reset Mode Manual (front panel) / Electric (remote) Fault Memory Records last 3 fault causes with corresponding current values Additional Functions Power failure protection, Self-diagnosis, Fail-safe mode (FS) Wiring Type Through-hole (window-type) Mounting 35 mm DIN rail mounting Operating Temperature Not specified in search results IP Degree of Protection Not specified in search results VFD Compatibility 20 ~ 400 Hz