GRV8-1UVS Single Phase Under Voltage Relay-2

GRV8-1UVS Single Phase Under Voltage Relay-1

GRV8-1UVS Single Phase Under Voltage Relay-3

GRV8-1UVS Single Phase Under Voltage Relay-4

GRV8-1UVS Single Phase Under Voltage Relay

The GEYA GRV8-1UVS is a high-performance single phase under voltage relay engineered to safeguard critical equipment from damaging voltage drops. Ideal for industrial, commercial, and HVAC applications, this relay ensures reliable protection for sensitive loads like motors, compressors, and air conditioning systems. With its compact design and advanced monitoring capabilities, the GRV8-1UVS is a trusted solution for maintaining operational stability.

Rated Voltage: AC 220V / 230V / 240V

Frequency Range: 45Hz – 65Hz

Measurement Accuracy: <1%

Under Voltage Range: Adjustable (e.g., 160V – 210V)*

Trip Delay Time: Adjustable (e.g., 0.1s – 10s)*

→ Download GRV8-1UVS Single Phase Under Voltage Relay Catalog PDF

Category Monitoring Relay

Description

Product Highlight：

Precise Voltage Monitoring: Utilizes True RMS measurement for accurate voltage detection across diverse power conditions.

Adjustable Settings: Customize under voltage thresholds and trip delays to suit specific application needs.

Broad Frequency Compatibility: Operates effectively within a 45Hz to 65Hz range, accommodating various power systems.

Visual Feedback: Integrated LED indicators provide clear, real-time status updates for quick diagnostics.

Space-Saving Design: Compact 1-MODULE format with DIN rail mounting for easy integration into control panels.

Panel Diagram：

Functions Diagram：

Wiring Diagram：

Dimensions(mm)：

Item	1UV
Function	Under voltage
Monitoring terminials	L-N
Supply terminals	L-N
Rated supply voltage(Un)	220V/230V/240V
Rated supply frequency	45Hz-65Hz
Under voltage threshold	S:70%-95%of Un
Trip delay time(Tu)	0.1s
Hysteresis	5V
Measurement error	≤1%
Power on delay time(Td)	Adjustable: 5min-15min
Recovery delay time(Tr)	Adjustable: 5min-15min
Konb setting accuracy	10% of scale value
Supply indication	green LED
Output indication	red LED
Output	1×SPDT
Current rating	10A/AC1
Switching voltage	250VAC/24VDC
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（mm²）	solid wire max.12.5 or 21.5/with sleeve max.1*2.5（AWG 12）
Tightening torque	0.8Nm
Dimensions	90×18×64mm
Weight	63g,65g
Standards	EN 60255-1,IEC60947-5-1