EOCR-3M420
EOCR-FM420
¡á Compact Design
¡á 3M420:Panel Mounting Type
¡á FM420:Panel Flush Mounting Type
¡á MCU( Microprocessor Control Unit )&ASIC Based
¡á Three Integral Current Transformers
¡á Over current/Under current/Phase Loss/Phase Reversal/Phase Unbalace/Locked Rotor
¡á Digital Ammeter
¡á Troubleshooting/Trip Cause Memory, Display
¡á Adjustable Operating Features by Pulae Rotary switch
¡á Wide Current Adjustment Range
¡á Selectable Time-Current Characteristics(Inverse/Definite)
¡á Manual Instantaneous/Electrical Remote Reset
¡á Built in 4~20mA Currnt signal Transducer
¡á Ambient Insensitive
¡á Selectable Fail-safe and Non-fail-safe Operation Modes
 
 
Protective Item

Trip Time

Over-current

DEF:0.2~30sec, INV:1~30

Undercurrent
0.5~30sec(DEF)
Phase Unbalance
0.1sec
Phase Reversal
8sec
Locked Rotor
Lock
0.5sec after dt
stall
1~10sec
Transducer
4~20mA(for Max current)
   
 
 

Model

3M420/FM420

Current Setting Range
Over-Current(oc)
0.1~800A(over 60A with External CTs)
Under-Current(uc)
0.5~under OC setting

Time Setting

Starting Delay Time(dt)
OFF~200sec
Over-Current Trip (ot)
DEF:0.2~30sec/INV:1~30
Under-Current Trip (ut)
0.5~30sec(DEF)

Conrol Power

220
85~250VAC/DC, 50/60Hz
Output Relay
OL
2-SPST, 3A/250VAC, Resistive
Signal current
4~20mA
Environment
Temperature
Store
-30 ~ 80 ¡É
Operation
-30 ~ 60 ¡É
Humidity
30~85%RH, Non-condensation
Display
7-Segment LEDs
3 Phase current, 3 Trip causes, Run time
Bar-Graph
% of existing Current vs OC setting current

Mounting

35mm DIN-Rail
   
 
 

EOCR-3M420

EOCR-FM420