Schneider Electric Ac Current Relays Model 3DD/FD
■ MCU( Microprocessor Control Unit ) Based Compact Design
■ Digital Ammeter
■ Multiple Protection Functions
■ Trobleshooting/Trip Cause Display
■ Run Monitor & Load Alert Function
■ Selectable Trip Time Characteristics
■ Manual Instantaneous/ Electrical Remote Reset
■ Test Function
■ Ambient Insensitive
■ Faill-safe Operation(No Volt Release)
■ Ambient Insensitive
■ Over Current/Phase loss/Phase Reversal/Locked Rotor/Phase Unbalance
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 0.5 Sec 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
|
Current Setting
(IS)
|
Type
|
Range
|
|
05
|
0.5 ~ 6/10A
|
|
60
|
5 ~ 60A
|
|
100
|
10 ~ 120A
|
with Ext. CT
|
|
150
|
15 ~ 180A
|
|
200
|
20 ~ 240A
|
|
300
|
30 ~ 360A
|
|
400
|
40 ~ 480A
|
|
500
|
50 ~ 600A
|
|
600
|
60 ~ 720A
|
|
Start Time Setting(D-TIME)
|
SW3-INV/On
|
0 - 120sec
|
|
SW3-DEF/Off
|
1 - 120sec
|
|
Alert Setting
|
50~100% of Oc setting (Is)
|
|
Trip Time Setting (O-TIME)
|
SW3-INV/On
|
1-30
|
|
SW3-DEF/Off
|
0.3-25sec
|
|
Conrol Voltage
|
24
|
24VAC/DC
|
|
220
|
85-250VAC/DC
|
|
440
|
320-480VAC/DC
|
|
Output Relay
|
OL
|
2-SPST, 3A/250VAC Resistive (1a1b)
|
|
AL
|
1-SPST, 3A/250VAC Resistive (Nomally De-Energized)
|
|
Trip Time Characteristic
|
3DD/FD
|
SW3
|
off-DEF On-Inv |
|
Mounting
|
3DD
|
35mm DIN-Rail
|
|
FD
|
Display
|
Flush
|
|
Converter
|
35mm DIN-Rail
|
|
Connection
|
Interface Cable
|