Schneider Electric Ac Current Relays EOCR - PMZ / PFZ
Digital Overload Relays
• MCU( Microprocessor Control Unit )Based
• Convenient installation
-PMZ:Panel Mounting Type
-PFZ:Panel Flush Mounting Type
• Full mode function:easy to set
• Three Integral Current Transformers
• Full cover protection Function
• Wide Current Range protection from 0.1A to 3600A by just 1 model
• Built-in digital ammeter
• Total running time display
• Current display like L1 -> L2 -> L3 -> GF...
• Bar-Graph monitoring on impending overload trip
• Selectable time-current characteristics[Inverse/Inverse based on thermal Memory (Thermal Inverse) /Definite]
• 4~20mA current loop communcations
• Test Function
• Operates in wide ambient temperature range
• Selectable Fail-safe Operation/ No volt Release(FS:ON)
EOCR - PMZ / PFZ Technical Specs
Protection
|
Protective Item
|
Trip Time
|
|
Over-current
|
DEF:0.2~30 sec, INV:1~30 class
|
|
Under-current
|
0.5~30 sec
|
|
Phase Reversal
|
0.1~0.3 sec
|
|
Phase Unbalance
|
within 8 sec
|
|
Ground Fault
|
DEF:0.1~10 sec, INV:1~10 class
|
|
Locked Rotor
|
0.5 sec after d-time
|
|
Stall
|
0.05~10 sec
|
Specification
|
Current Setting Range
|
Over-Current(oc)
|
0.1~3600A(Over 60A with External CTs)
|
|
Under-Current(uc)
|
OFF/0.5~less than "OC" setting
|
|
Ground Fault Current(Ec)
|
OFF
|
|
0.3~1A definite/inverse (selectable)
|
|
with External CT(Option)
|
|
Time Setting
|
Starting Delay Time(dt)
|
OFF~200sec
|
|
Over-Current Trip Time(ot)
|
Definite Time
|
0.2~30sec
|
|
Inverse Time
|
1~30class(30curves)
|
|
Under-Current Trip Time(ut)
|
0.5~30sec, definite time characteristics, if "uc" mode selects OFF, then ut is automatically disabled.
|
|
Ground Fault Trip Time(Et)
|
Definite/Inverse : 0.05, 0.1~1~10 sec
|
|
Ground Failt Starting Time(Edt)
|
OFF/1~10 sec
|
|
Tolerance
|
Current
|
±5%
|
|
Time
|
±5%
|
|
Conrol Power
|
220
|
85~250VAC/DC, 50/60Hz
|
|
Output Relay
|
OL(SH)
|
1-SPDT(1C)
|
3A/250VAC, Resistive
|
|
GR
|
2-SPST
|
3A/250VAC, Resistive
|
|
Environment
|
Temperature
|
Store
|
-30 ~80 ℃
|
|
Operation
|
-20 ~60 ℃
|
|
Humidity
|
30~85% RH, Non-Condensing
|
|
Display
|
7-Segment LED
|
3phase current,Trip cause, Operating hou
|
|
Bar-Graph
|
Load factor for current setting(50~100%)
|
|
Insulation
|
Between casing and circuit:over 10MΩ, 500VDC
|
|
Dielectric Strength
|
Between casing and circuit
|
Between casing and circuit 2000VAC,60Hz, 1min
|
|
Between open contacts
|
Between casing and circuit 2000VAC,60Hz, 1min
|
|
Between circuit
|
Between circuit 2000VAC,60Hz, 1min
|
|
Electrostatic Discharge
|
IEC61000-4-2
|
Lever3:Air Discharge:±8kV, Contact Discharge:±6kV
|
|
Radiated Electromagnetic Field Disturbance
|
IEC61000-4-3
|
Lever3:10V/m,150MHz&450MHz Portable transceiver
|
|
EFT/Burst
|
IEC61000-4-4
|
Lever3:±2kV, 1min
|
|
Surge
|
IEC61000-4-5
|
Lever3:1 x 50 ,±4kV(0˚,90˚,180˚,270˚
|
|
1MHz Burst disturbance
|
IEC61000-4-12
|
Lever3:±2.5kV,1MHz
|
|
Conducted Emission
|
EN55011
|
Class B
|
|
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