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Quick Details

  • Place of Origin: China (Mainland)
  • Brand Name: CNSN
  • Model Number: EOCR-3DE
  • Theory: Current Relay
  • Usage: Protective
  • Size: Miniature
  • Contact Load: Low Power
  • Protective Item: Trip Time
  • Over-current: O-TIME
  • under-current: 0.5~30sec
  • Phase Loss: 3 sec
  • Phase Unbalance: 8 sec
  • Phase Reversal: 0.1~0.3 sec
  • Locked Rotor: D-TIME

Packaging & Delivery

Packaging Details Standard
Delivery Time 10 Working days

Specifications

MCU Based
Over-current, Under-Current, Phase Loss, Phase
Unbalance, Phase Reversal, Locked Rotor Protection

EOCR-3DE Digital Overcurrent Relay

 

Product Description
 MCU Based

3 Integral Current Transformers

 Over-current, Under-Current, Phase Loss, Phase

Unbalance, Phase Reversal, Locked Rotor Protection

 Digital Ammeter & Trip cause indication

Selectable Trip Time-Current Characteristics

 Independently Adjustable Starting Trip Delay and Operating

Trip Time + Load Alerting Function → EOCR-3DE +

 

 Protection
                                                                    EOCR-3DE                                                        EOCR-3EZ
  Protective Item  Trip Time  Protective Item  Trip Time
  Over-current  O-TIME  Over-current  O-TIME
  under-current  0.5~30sec  Under-current  0.5~30sec
  Phase Loss  3 sec  Phase Loss  3 sec
  Phase Unbalance  8 sec  Phase Unbalance  8 sec
  Phase Reversal  0.1~0.3 sec  Phase Reversal  0.1~0.3 sec
  Locked Rotor  D-TIME  Locked Rotor  D-TIME
  -  -  Ground Fault  0.05~10 sec

 

 

Specification
Model EOCR-3DEEOCR-3EZ
Over  Current  Setting  Range                                               Refer  Table  #1
Ground  Fault  Current  Setting -0.02  ~  3A
Alert  Setting 50  ~  100%  /  OFF-
Start  Delay  Time  Setting  (D-TIME)                                                   1  ~  200  Sec
Trip  Delay  Time  Setting  (O-TIME)INV                                                    1  ~  30
DEF                                        0.2  ~  30  Sec
Control  Voltage 24VAC/DC,   110VAC± 15%,   220VAC± 15%
Output  RelayOL                  2-SPST                      1-SPST
AL/GR                  AL  Relay  Ground  Fault  Relay
Rating                              3A/250VAC  Resistive
Time  CharacteristicIn/” tc” mode                              Inverse  (See  Curve-1)
dE/” tc” mode                              Definite  (See  Curve-2)
Troubleshooting  /  Trip  Indication                              LED  Display  (SSD+LED)
Current  Sensing                                  3-CT
Mounting                                35mm  Din-rail

 

Table #1. Current Range
  Current Setting  Number of Conductors  Extermal CT RatioSetting of CT Ratio 
Range (Amps)          thru CT windows
  0.5 ~ 60A  1  -  OFF
  0.25 ~ 3.0A  2  -  2T
  0.1 ~ 1.2A  5  -  5T
  1 ~ 12A  1  10: 5  10
  1.5 ~ 18A  1  15: 5  15
  2.0 ~ 24A  1  20: 5  20
  2.5 ~ 30A  1  25: 5  25
  3.0 ~ 36A  1  30: 5  30
  4.0 ~ 48A  1  40: 5  40
  5 ~ 60A  1  50: 5  50
  6 ~ 72A  1  60: 5  60
  7.5 ~ 90A  1  75: 5  75
  10 ~ 120A  1  100: 5  100
  12 ~ 144A  1  120: 5  120
  15 ~ 180A  1  150: 5  150
  20 ~ 240A  1  200: 5  200
  25 ~ 300A  1  250: 5  250
  30 ~ 360A  1  300: 5  300
  40 ~ 480A  1  400: 5  400
  50 ~ 600A  1  500: 5  500
  60 ~ 720A  1  600: 5  600
  75 ~ 900A  1  750: 5  750
  80 ~ 960A  1  800: 5  800

 

 

  

 

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