Schneider Electric Ac Current Relays Model 3EZ/FEZ
■ 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
■ Adjustable Operating Features by Mode switch
■ Wide Current Adjustment Range
■ Selectable Time-Current Characteristics(Inverse/Definite)
■ Manual(Instantaneous)/Electrical(Remote)Reset
■ Test Function
■ 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 Model 3EZ Technical Specs
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 |
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
|