3 Phase Voltage Relay GRV8-03D to 08D

Function Features -Controls its own supply voltage(True RMS measurement). -Set 8-level rated operating voltage through knob. - Measuring frequency range:45Hz-65Hz. - Voltage measurement accuracy<1%. -2 C/O output . - Relay status is indicated by LED. - 1-MODULE,DIN rail mounting.
  • Control for connection of moving equipment(site equipment,agricultural equipent,refrigerated trucks).
  • Control for protection of persons and equipment against the consequences of reverse running.
  • Normal/emergency power supply switching.
  • Protection against the risk of a driving load(phase failure).
Technical parametersM460M265
FunctionMonitoring 3-phase voltage
Monitoring terminalsL1-L2-L3L1-L2-L3-N
Supply terminalsL1-L2L1-N
Voltage range





Rated supply frequency45Hz-65Hz
Measuring range176V-552V101V-318V
Threshold adjustment voltage2%-20%of Unselected
Adjustment of asymmetry threshold5%-15%
Supply indicationgreen LED
Time delayAdjustable 0.1s-10s,10%
Measurement error≤1%
Run up delay at power up0.5s time delay
Konb setting accuracy10% of scale value
Reset time1000ms
Temperature coefficient0.05%/℃,at=20℃(0.05%℉,at=68℉)
Current rating8A/AC1
Switching voltage250VAC/24VDC
Min.breaking capacity DC500mW
Output indicationred LED
Mechanical life1×107
Electrical life(AC1)1×105
Operating temperature-20℃ to +55℃(-4℉ to 131℉)
Storage temperature-35℃ to +75℃(-22℉ to 158℉)
Mounting/DIN railDin rail EN/IEC 60715
Protection degreeIP40 for front panel/IP20 terminals
Operating positionany
Overvoltage categoryIII.
Pollution degree2
Max.cable size(mm 2)solid wire max.1×2.5or 2×1.5/with sleeve max.1×2.5(AWG 12)
Weight  72g
StandardsEN 60255-1,IEC60947-5-1

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3 phase voltage relay GRV8 -03D to 08D Dimensions


3 phase voltage relay GRV8 -03D to 08D Function Diagram

Functions Diagram 1

Functions Diagram 2

3 phase voltage relay GRV8 -03D to 08D Model and Connotation

Model and connotation

3 phase voltage relay GRV8 -03D to 08D Panel Diagram

Panel Diagram

3 phase voltage relay GRV8 -03D to 08D Wiring Diagram

Wiring Diagram