Schneider Electric Ac Current Relays Model 3MZ/DMZ
■ Compact Design
■ 3MZ:Panel Mounting Type
■ FMZ:Panel Flush Mounting Type
■ MCU( Microprocessor Control Unit )&ASIC Based
■ Three Integral Current Transformers
■ Over current/Under current/Phase Loss/Phase Reversal/Phase Unbalace/Locked Rotor/Ground Fault
■ Digital Ammeter
■ Troubleshooting/Trip Cause Memory, Display
■ Adjustable Operating Features by Pulse Rotary switch
■ Wide Current Adjustment Range
■ Selectable Time-Current Characteristics(Inverse/Definite)
■ Manual Instantaneous/Electrical Remote Reset
■ Precise Ground Fault protection
■ Ambient Insensitive
■ Selectable Fail-safe and Non-fail-safe Operation Modes
EOCR Model 3MZ/FMZ Technical Specs
|
Protective Item
|
Trip Time
|
|
Over-current
|
DEF : 0.2 ~ 30sec INV : 1 ~ 30
|
|
Undercurrent
|
0.5~30sec(DEF)
|
|
|
within 3sec
|
|
|
0.1sec
|
|
|
8sec
|
|
Locked Rotor
|
Lock
|
0.5sec after dt
|
|
stall
|
1~10sec
|
|
|
0.1~10sec
|
|
Model
|
3MZ/FMZ
|
|
Current Setting Range
|
Over-Current(oc)
|
0.1~800A(Over 20A with External CTs)
|
|
Under-Current(uc)
|
0.5~under OC setting
|
|
Ground Fault Current(Ec)
|
A:0.03~2.5A/B:0.5~10A
|
|
Time Setting
|
Starting Delay Time(dt)
|
OFF~200sec
|
|
Over-Current Trip (ot)
|
DEF:0.2~30sec/INV:1~30
|
|
Under-Current Trip (ut)
|
0.5~30sec(DEF)
|
|
Ground Fault Trip Delay(Et)
|
0.1~10sec
|
|
Conrol Power
|
220
|
85~250VAC/DC, 50/60Hz
|
|
Output Relay
|
O.L
|
1-SPST,3A/250VAC, Resistive
|
|
G.R
|
1-SPST, 3A/250VAC, Resistive
|
|
Environment
|
Temperature
|
Store
|
-30 ~80 ℃
|
|
Operation
|
-30 ~60 ℃
|
|
Humidity
|
30~85%RH, Non-condensation
|
|
Display
|
7-Segment LEDs
|
3 Phase current, 3 Trip causes, Run time
|
| |
Bar-Graph
|
% of existing Current vs OC setting current
|
|
Mounting
|
35mm DIN-Rail
|