EKR8-7 Three-phase Three-wire Voltage Protection Relay
EKR8-7 Three-phase Three-wire Voltage Protection Relay
EKR8-7 Three-phase Three-wire Voltage Protection Relay
EKR8-7 Three-phase Three-wire Voltage Protection Relay
EKR8-7 Three-phase Three-wire Voltage Protection Relay
EKR8-7 Three-phase Three-wire Voltage Protection Relay
EKR8-7 Three-phase Three-wire Voltage Protection Relay

EKR8-7 Three-phase Three-wire Voltage Protection Relay

Voltage protection relay uses a high-speed and low power 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.

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EKR8-7 Three-phase Three-wire Voltage Protection Relay

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Porduct Overview

Voltage protection relay uses a high-speed and low power 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.
 

1. The product has protective functions: phase breaking, phase staggering, unbalanced voltage, zero line breaking.
2. Real-time monitoring of phase-staggered, phase-missing and voltage-unbalanced faults in three-phase three-wire circuit.
3. Voltage Monitor, the product enhances the anti-interference performance of frequency converter, and the performance is more stable.
4.Voltage Monitoring Relay, the phase sequence protector adopts standard modular structure and rail installation
5. Phase Sequence Protection Relay, the product has two indicator lights indicating various working conditions.

Technical parameters

Technical Data

Technical Data
 
EKR8-7010
EKR8-7210
EKR8-7310
Monitoring Type
Three Phase
Output Characteristics
SPDT
Over Voltage
15%
0-20% 0-20%
Under Voltage
15%
0-20% 0-20%
Time Delay
3S 3S 0.1-10S
Phase Sequence
Phase Failure
Working Voltage
AC220V,380V,400V,415V,440V
Frequency
50/60Hz
Response Time of Relay
0.5S
Contact Rating
AC-15:3A/250VAC
Ambient Temperature
-10°C~+55°C
Voltage Error
⼟2% Max
Temperature Error
⼟2% Max

Dimensions

Dimension

Wring Diagram

 

Product selection form

EKR8-7010110  Voltage Protection Relay 0 knob SPDT three phase110VAC
EKR8-7010220  Voltage Protection Relay 0 knob SPDT three phase 220VAC
EKR8-7010380  Voltage Protection Relay 0 knob SPDT three phase 380VAC
EKR8-7010400  Voltage Protection Relay 0 knob SPDT three phase 400VAC
EKR8-7010415  Voltage Protection Relay 0 knob SPDT three phase 415VAC
EKR8-7010440  Voltage Protection Relay 0 knob SPDT three phase 440VAC
EKR8-7210110  Voltage Protection Relay 2 knob SPDT three phase110VAC
EKR8-7210220  Voltage Protection Relay 2 knob SPDT three phase 220VAC
EKR8-7210380  Voltage Protection Relay 2 knob SPDT three phase 380VAC
EKR8-7210400  Voltage Protection Relay 2 knob SPDT three phase 400VAC
EKR8-7210415  Voltage Protection Relay 2 knob SPDT three phase 415VAC
EKR8-7210440  Voltage Protection Relay 2 knob SPDT three phase 440VAC
EKR8-7310110  Voltage Protection Relay 3 knob SPDT three phase 110VAC
EKR8-7310220  Voltage Protection Relay 3 knob SPDT three phase 220VAC
EKR8-7310380  Voltage Protection Relay 3 knob SPDT three phase 380VAC
EKR8-7310400  Voltage Protection Relay 3 knob SPDT three phase 400VAC
EKR8-7310415  Voltage Protection Relay 3 knob SPDT three phase 415VAC
EKR8-7310440  Voltage Protection Relay 3 knob SPDT three phase 440VAC

Download Files

Porduct Overview

Voltage protection relay uses a high-speed and low power 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.
 

1. The product has protective functions: phase breaking, phase staggering, unbalanced voltage, zero line breaking.
2. Real-time monitoring of phase-staggered, phase-missing and voltage-unbalanced faults in three-phase three-wire circuit.
3. Voltage Monitor, the product enhances the anti-interference performance of frequency converter, and the performance is more stable.
4.Voltage Monitoring Relay, the phase sequence protector adopts standard modular structure and rail installation
5. Phase Sequence Protection Relay, the product has two indicator lights indicating various working conditions.

Technical parameters

Download Files

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