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Samwha : Protección : EOCR
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EOCR-3M420
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EOCR-FM420
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Compact
Design |
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3M420:Panel
Mounting Type |
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FM420:Panel
Flush Mounting Type |
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MCU( Microprocessor Control Unit )&ASIC Based |
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Three
Integral Current Transformers |
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Over current/Under current/Phase Loss/Phase Reversal/Phase
Unbalace/Locked Rotor |
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Digital Ammeter |
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Troubleshooting/Trip Cause Memory, Display |
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Adjustable
Operating Features by Pulae Rotary switch |
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Wide
Current Adjustment Range |
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Selectable
Time-Current Characteristics(Inverse/Definite) |
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Manual
Instantaneous/Electrical Remote Reset |
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Built in 4~20mA Currnt signal Transducer |
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Ambient
Insensitive |
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Selectable
Fail-safe and Non-fail-safe Operation Modes |
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Protective Item
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Trip
Time
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Over-current
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DEF:0.2~30sec,
INV:1~30
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Undercurrent
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0.5~30sec(DEF)
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Phase
Unbalance
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0.1sec
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Phase
Reversal
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8sec
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Locked
Rotor
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Lock
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0.5sec
after dt
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stall
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1~10sec
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Transducer
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4~20mA(for
Max current)
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Model
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3M420/FM420
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Current Setting Range
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Over-Current(oc)
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0.1~800A(over
60A with External CTs)
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Under-Current(uc)
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0.5~under
OC setting
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Time
Setting
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Starting
Delay Time(dt)
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OFF~200sec
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Over-Current
Trip (ot)
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DEF:0.2~30sec/INV:1~30
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Under-Current
Trip (ut)
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0.5~30sec(DEF)
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Conrol
Power
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220
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85~250VAC/DC,
50/60Hz
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Output
Relay
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OL
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2-SPST,
3A/250VAC, Resistive
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Signal
current
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4~20mA
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Environment
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Temperature
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Store
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-30
~ 80 ¡É
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Operation
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-30
~ 60 ¡É
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Humidity
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30~85%RH,
Non-condensation
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Display
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7-Segment
LEDs
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3
Phase current, 3 Trip causes, Run time
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Bar-Graph
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%
of existing Current vs OC setting current
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Mounting
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35mm DIN-Rail
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EOCR-3M420
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EOCR-FM420
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