Schneider Electric Ac Current Relays EOCR - 3DE / 3EZ
Digital Over-Current Relays
• Compact Design
• MCU( Microprocessor Control Unit ) Based
• Three Integral Current Transformers
• Multiple Protection Functions
• Digital Ammeter/3 Phase Current Display
• Troubleshooting/Trip Cause Memory, Display
• Wide Current Adjustment Range
• Selectable Time-Current Characteristics(Inverse/Definite)
• Manual(Instantaneous)/Electrical(Remote)Reset
• Test Function
• Adjustable Operating Features by Mode switch
• Ambient Insensitive
• Selectable Fail-safe and Non-fail-safe Operation Modes
• Inverter (20~400Hz)
• EOCR-3DE : Panel Mounting type
• EOCR-FDE : Flush Mounting type(Display)
EOCR - 3DE / 3EZ / FEZ Technical Specs
Protection
|
Protective Item
|
Trip Time
|
|
Over-current
|
DEF:0.2~30 sec, INV:1~30 class
|
|
Under-current
|
0.5~30 sec
|
|
Phase Loss
|
within 3 sec
|
|
Phase Unbalance
|
8 sec
|
|
Locked Rotor
|
Lock : within 0.5sec after dt(in DEF set)
Stall : 0.05~10sec(in DEF set)
|
|
Ground Fault
|
0.05~10 sec
|
Specification
|
Current Range
|
Over-Current
|
0.5~960A(Over 60A with External CTs)
|
|
Under-Current
|
0.5~59A/OFF(Over 60A with External CTs)
|
|
Ground Fault
|
0.02~3A
|
|
Start Delay Time (D-TIME)
|
1~200 sec
|
|
Time Setting Range(O-TIME)
|
Trip Delay Time Setting (O-TIME)
|
INV
|
1-30
|
|
DEF
|
0.2-30 sec
|
|
Control Voltage
|
110VAC±15%,220VAC±15%,
85~250VAC/DC(Terminal Type) 24VAC/DC
|
|
Output Relay
|
OC/UC
|
2-SPST, 3A/250VAC Resistive
|
|
GR
|
1-SPST,3A/250VAC Resistive
|
|
Time Characteristic
|
In/"tc"mode
|
Inverse
|
|
dE/"tc"mode
|
Definite
|
|
Trobleshooting/Trip Indication
|
LED Display(3 Trip causes memory)
|
|
Current Sensing
|
3-CTs
|
|
Mounting
|
35mm DIN-Rail/Panel
|
|
|
|
|