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Monitoring Voltage Relay GRV8-VW

Function Features

-True RMS measurement with high measurement accuracy.
-Overvoltage and undervoltage selection monitoring or simultaneous monitoring.
-The output contact is normally open or normally closed and can be set.
-Two sets of contact outputs, which can act separately and independently.
-36mm wide, 35mm clamp rail installation.

→ Download GRV8-VW Catalog

SKU GRV8-VW Category



-Used for overvoltage and undervoltage protection of electrical equipment.
-Monitor weak load carrying capacity or voltage signals that require isolation.


Function Monitoring voltage
Supply terminals A1,A2
Rated supply voltage AC/DC24-240V 50/60Hz
Monitoring voltage input terminal V1,V2,V3,C
Monitoring voltage range AC/DC15V-600V50/60Hz
Rated insulation voltage 600V
Hysteresis Only over or under:5%-20% adjustable;Over and under:fixed 3%
Supply/Reset indication Green LED
Measurement error ≤2%
Time delay 0.1s-10s
Power up delay/Reset time 0.1s-10s
knob setting accuracy 10%
Output 2xSPDT
Current rating 5A/AC1
Switching voltage 250VAC/24VDC
Min.breaking capacity DC 500mW
Output indication Red LED
Mechanical life 5×10⁶
Electrical life(AC1) 5×10⁴
Operating temperature -20℃to+55℃(-4°F to 131°F)
Storage temperature -35℃to+75℃(-22°Fto158°F)
Mounting/DIN rail Din rail EN/IEC 60715
Protection degree IP40 for front panel/IP20 terminals
Operating position any
Overvoltage cathegory III
Pollution degree 2
Max.cable  size(mm²) solid wire max.1×2.5or 2×1.5/with sleeve max.1×2.5(AWG 12)
Dimensions 90mm×36mm×70mm
Weight 100g
Standards IEC60947-5-1

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