ZHEJIANG HUAYANG ELECTRIC CO., LTD.
EOCR-3DE 3EZ Digital Over Current Relay

EOCR-3DE 3EZ Digital Over Current Relay

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Electronic Over Current Relay

Model No: EOCR-3DE 3EZ

Electronic Over Current Relay EOCR-3DE 3EZ involves a current coil through which the current is flown for generating the magnetic effect that is useful for the movement of the element of relay. This is because the restraining force is much more in comparison to the deflecting force.

Digital Over-Current Relay
  • 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
  • + Ground Fault Protection → EOCR-3EZ

Protection:

EOCR-3DE

EOCR-3EZ

Protective Item

Trip Time

Protective

Trip Time

Over-current

0-Time

Over-current

0-Time

Under-current

0.5-3.0 sec

Under-current

0.5-3.0 sec

Phase Loss

3 sec

Phase Loss

3 sec

Phase Unbalanced

8 sec

Phase Unbalanced

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-3DE

EOCR-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 Relay

OL

2 - SPST

1 - SPST

AL/GR

AL Relay

Ground Fault Relay

Rating

3A/250VAC Resistive

Time Characteristic

In/” 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