Main Features
- Compact Design
- 3MZ:Panel Mounting Type
- FMZ:Panel Flush Mounting Type
- MCU( Microprocessor Control Unit ) amp; 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
Protection
|
Protective Item |
Trip Time |
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Over-current |
DEF : 0.2 ~ 30sec INV : 1 ~ 30 |
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Undercurrent |
0.5~30sec(DEF) |
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Phase Loss |
within 3sec |
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Phase Unbalance |
0.1sec |
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Phase Reversal |
8sec |
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Locked Rotor |
Lock |
0.5sec after dt |
|
stall |
1~10sec |
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Ground Fault |
0.1~10sec |
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Specficication
|
Model |
3MZ/FMZ |
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Current Setting Range |
Over-Current(oc) |
0.1~800A (Over 20A with External CTs) |
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Under-Current(uc) |
0.5~under OC setting |
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Ground Fault Current(Ec) |
A:0.03~2.5A/B:0.5~10A |
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Time Setting |
Starting Delay Time(dt) |
OFF~200sec |
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Over-Current Trip (ot) |
DEF:0.2~30sec/INV:1~30 |
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Under-Current Trip (ut) |
0.5~30sec(DEF) |
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Ground Fault Trip Delay(Et) |
0.1~10sec |
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Conrol Power |
220 |
85~250VAC/DC, 50/60Hz |
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Output Relay |
O.L |
1-SPST,3A/250VAC, Resistive |
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G.R |
1-SPST, 3A/250VAC, Resistive |
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Environment |
Temperature |
Store |
-30 ~80 ℃ |
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Operation |
-30 ~60 ℃ |
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Humidity |
30~85%RH, Non-condensation |
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Display |
7-Segment LEDs |
3 Phase current, 3 Trip causes, Run time |
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Bar-Graph |
% of existing Current vs OC setting current |
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Mounting |
35mm DIN-Rail |
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