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Single Phase Voltage Monitoring Relay GRV8-01

Protect electrical equipment and motors from over-voltage and under-oltage. Normal/emergency power supply switching.

SKU GRV8-01 Category


Single Phase Monitoring Relay

GEYA Single Phase Monitoring Relay is a device intended for effective voltage automatic control and such equipment as home appliances and other devices in home and offices protection.

It is designed for the protection of single phase load un-allowable voltage variations in the mains. They have a wide range of adjustments, including power on time delay for protection on refrigerating, compressor and air conditioning equipment.

GEYA Single Phase Voltage Monitoring Relay provides for automatic load energizing after voltage parameters recovery within predetermines time relay.

The relays are compact in size and weight. They can be utilized both as independent switching devices and as controls for other switching devices, like magnetic starters.

GEYA Single Phase Monitoring Relay performs the function of protection against voltage drops.

It is designed to de-energize an industrial appliance single phase in case of inadmissible voltage variations in the mains with subsequent automatic re-energizing after the circuit parameters recovery.

Loads are connected to the relay either directly via relay terminals or through a magnetic starter, depending on the wattage.



Technical parameters GRV8-01 GRV8-02
Function Monitoring voltage
Supply terminals A1-A2
Rated supply voltage DC12V,AC/DC24V-48V,AC/DC110V-240V,AC220V
Rated supply frequency 45Hz-65Hz,0
Hysteresis 5%-20% 3%fixed
Supply indication green LED
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 scale value
Reset time 1000ms
Temperature coefficient 0.05%/℃,at=20℃(0.05%℉,at=68℉)
Output 1×SPDT
Current rating 10A(AC1)
Switching voltage 250VAC/24VDC
Min. breaking capacity DC 500mW
Output indication red LED
Mechanical life 1×107
Electrical life(AC1) 1×105
Operating temperature -20℃ to+55℃(-4℉to131℉)
Storage temperature -35℃ to+75℃(-22℉to158℉)
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 59g
Standards EN 60255-1,IEC60947-5-1

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