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Product short description

ETEK 3 Phase Voltage Protection Relay Over-voltage Phase Failure SPDT Three Phase 220V 380V 480V 127-254V AC EKR8

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Voltage protection relay uses a high-speed and lowpower processor as its core. When the power supply line has over-voltage, under-voltage, or phase failure, phase reverse, the relay will cut off the circuit quickly and safely to avoid accidents caused by abnormal voltage being sent to the terminal appliance. When the voltage returns to the normal value, the relay will turn on the circuit automatically to ensure the normal operation of the terminal electrical appliances under unattended conditions

1. Cut off the line when Over & Under Voltage occurs, and automatically reset and connect the line after returning to normal without manual operation.


2. When the line appears transient or transient Over & Under Voltage, the protector does not malfunction.


EKR8-7010:3Phase 3Wire,0 knob,SPDT,Voltage Range: 380V AC


EKR8-7110:3Phase 3Wire,1 knob,SPDT,Voltage Range: 220V 230V 240V 380V 400V 415V 440V 460V 480V AC


EKR8-7310:3Phase 3Wire,3 knob,SPDT,Voltage Range: 220V AC / 380V AC


EKR8-741N:3Phase 4Wire,4 knob,SPDT,Voltage Range: 127V 132V 138V 220V 230V 240V 254V AC


HOW TO CHOOSE THE MODEL


Product Code

Over Voltage

Under Voltage

Delay Time

Phase Sequence

Phase Failure

7010

15%

15%

3s

/

YES

7110

/

/

3s

/

YES

7310

0%~20%

0%~20%

0.1s~10s

YES

YES

741N

0%~20%

0%~20%

3s

YES

YES