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3 Phase Voltage Relay GRV8-03X to 08X

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%.- Relay status is indicated by LED.- 1-MODULE, DIN rail mounting.

SKU GRV8-03X to 08X Category




  • 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 range220-230-240-380-400-415-440-460(P-P)127-132-138-220-230-240-254-265(P-N)
Rated supply frequency45Hz-65Hz
Measuring range176V-552V101V-318V
Threshold adjustment voltage2%-20% of Unselected
Adjustment of asymmetry threshold5%-15%
Phase failure value70% of Un selected
70% of Un selected
Time delayAdjustable 0.1s-10s,10%
Measurement error≤1%
Run up delay at power-up0.5s time delay
Konb setting accuracy10% of scale value
Supply indicationgreen LED
Output indicationred LED
Reset time1000ms
Current rating10A/AC1
Switching voltage250VAC/24VDC
Min.breaking capacity DC500mW
Temperature coefficient0.05%/℃,at=20℃(0.05%℉,at=68℉)
Mechanical life1×107
Electrical life(AC1)1×105
Operating temperature-20°C to +55°C (-4 °F to 131 °F)
Storage temperature-35°C to +75°C (-22 °F to 158 °F)
Mounting/DIN railDin rail EN/IEC 60715
Protection degreeIP40 for front panel/IP20 terminals
Operating positionany
Overvoltage category
Pollution degree2
Max.cable size(mm2)solid wire max.1 x2.5or 2×1.5/with sleeve max.1 x2.5(AWG 12)
Tightening torque0.8Nm


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