< img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=5580415518647572&ev=PageView&noscript=1" />
Close this search box.

3 Phase Voltage Relay GRV8-03 to 08

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.


Download GRV8-03-08 Catalog

→ Download GRV8-03-08 Packing List

SKU GRV8-03 to 08 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).


1.GRV8-03+GYHC-40 wiring diagram 2.GRV8+GYHC-16 wiring diagram

Technical parameters M460 M265
Function Monitoring 3-phase voltage
Monitoring terminals L1-L2-L3 L1-L2-L3-N
Supply terminals L1-L2 L1-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 0.5s time delay
Konb setting accuracy 10% of the scale value
Supply indication green LED
Output indication red LED
Reset time 1000ms
Output 1×SPDT
Current rating 10A/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
Operating temperature -20℃ to +55℃(-4℉ to 131℉)
Storage temperature -35℃ to +75℃(-22℉ to 158℉)
Mounting/DIN rail Din rail EN/IEC 60715
Protection degree IP40 for front panel/IP20 terminals
Operating position any
Overvoltage category III.
Pollution degree 2
Max.cable size(mm 2) solid wire max.1×2.5or 2×1.5/with sleeve max.1×2.5(AWG 12)
Tightening torque 0.8Nm
Dimensions 90×18×64mm
Weight   61g-66g

Shopping cart


No products in the cart.

Continue Shopping