Schneider Electric Ac Current Relays Model 3DZ/FDZ
■ Compact Design
■ MCU( Microprocessor Control Unit ) Based
■ ASIC(Application Specific Integrated Circuit)Inside
■ Three Integral Current Transformers
■ Overcurrent/Phase Loss/Phase Reversal/Phase Unbalace/Locked Rotor/Ground Fault
■ Digital Ammeter
■ Troubleshooting/Trip Cause Memory, Display
■ Adjustable Operating Features by DIP switch Setting
■ 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
EOCR Model 3DD/FD Technical Specs
|
Protective Item
|
Trip Time
|
|
Over-current
|
DEF : 0.3 ~ 25sec INV : 1 ~ 30
|
|
|
within 4sec
|
|
|
8sec
|
|
|
0.1sec
|
|
Locked Rotor
|
DEF : within 0.5sec after dt
INV : If D-Time=0sec
Operating according to Cold-curve
If D-Time=Over 0sec
Operating according to Hot-curve
after D-time set
|
|
|
|
| over Current Setting |
Type
|
Setting Range
|
|
05
|
0.5 ~ 6/10A
|
|
20
|
5 ~ 20A
|
|
100
|
10 ~ 120A
|
Wth External CTs
|
|
150
|
15 ~ 180A
|
|
200
|
20 ~ 240A
|
|
300
|
30 ~ 360A
|
|
400
|
40 ~ 480A
|
|
500
|
50 ~ 600A
|
|
600
|
60 ~ 720A
|
|
Ground Fault Current Setting
|
A
|
0.05~2.5A
|
|
B
|
0.2~10A
|
|
Start Delay Time Setting(D-TIME)
|
SW3-INV/On
|
0~120sec
|
|
SW3-DEF/Off
|
1~120sec
|
|
Trip Time Setting (O-TIME)
|
SW3-INV/On
|
1-30
|
|
SW3-DEF/Off
|
0.3-25sec
|
|
Conrol Voltage
|
|
|
Output Relay
|
O.L
|
1-SPST(1b), 3A/250VAC Resistive
|
|
G.R
|
1-SPST(1a), 3A/250VAC Resistive
|
|
Time Characteristic
|
SW3-INV/On
|
Inverse
|
|
SW3-DEF/Off
|
Definite
|
| Trobleshooting/Trip Indication |
LED Display
|
|
Current Sensing
|
3-CT
|
|
Mounting
|
35mm DIN-Rail/Panel
|