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3 Phase Voltage Relay GRV8 -09 10

Function Features

-Controls its own supply voltage(True RMS measurement).

-Set 8-level rated operating voltage through knob.

-Set the reset delay time through the knob.

-2 C/O output .

-Measuring frequency range:45Hz-65Hz.

-Voltage measurement accuracy<1%.

-Relay status is indicated by LED.

-2-MODULE,DIN rail mounting.

SKU GRV8-09 10 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 parameters M460 M265
Function Monitoring 3-phase voltage
Monitoring terminals L1-L2-L3 L1-L2-L3-N
Supply terminals L1-L2-L3 L1-L2-L3-N
Voltage range 220-230-240-380-400-415-440-460(P-P) 127-132-138-220-230-240-254-265(P-N)
Rated supply frequency 45Hz-65Hz
Measuring range 176V-552V 101V-318V
Threshold adjustment voltage 2%-20% of Unselected
Adjustment of asymmetry threshold 5%-15%
Hysteresis 2%
Phase failure value 70% of Un selected 70% of Un selected
Time delay Adjustable 0.1s-10s,10%
Measurement error ≤1%
Run up delay at power up Adjustable 0.1s-10s,10%
Konb setting accuracy 10% of scale value
Supply indication green LED
Output indication red LED
Output 2×SPDT
Current rating 8A/AC1
Switching voltage 250VAC/24VDC
Min. breaking capacity DC 500mW
Temperature coefficient 0.05%/℃,at=20℃(0.05%℉,at=68℉)
Mechanical life 1×107
Electrical life(AC1) 1×105
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