| Brand | MV Switchgear Accessories |
| Numero sa Modelo | GRV8-4UVR Tres Fase Sub Voltage Relay |
| Nasodnong peryedyo | 45Hz-65Hz |
| Serye | GRV8 |
Ang GRV8-4UVR mao ang ispesyal nga three phase under voltage relay. Ang iyang kompakto nga lapad sa 36mm naghatag og seamless nga pag-install sa mga control panel nga adunay limitado nga espasyo, samtang ang adjustable nga mga setting maghatag og flexibility aron mapersonalize ang proteksyon sumala sa imong spesipikong panginahanglan. Huwad kung unsa ang imong gimanage, yaigo ang manufacturing plant, HVAC system, o power distribution network, ang GRV8-4UVR magdala sa precision ug reliability nga nanginahanglan nimo.
Supply Voltage：AC 220V / 380V / 400V
Measuring Frequency Range：45Hz – 65Hz
Voltage Measurement Accuracy：<1%
Under Voltage Setting Range：Adjustable (e.g., 170V – 210V per phase)*
Trip Delay Time：Adjustable (e.g., 0.1s – 10s)*
3-Phase Voltage Monitoring: Wala gayod sa single-phase relays, ang GRV8-4UVR monitohan ang tanang tulo ka phases sama, naghatag og balanced nga proteksyon alang sa mga sistema diin importante ang phase integrity.
Adjustable Under Voltage Thresholds: Fine-tune ang under voltage protection levels aron mapasabot sa spesipikong panginahanglan sa imong equipment.
Phase Imbalance and Sequence Protection: Nagsusi ug naga-react sa phase imbalances ug incorrect phase sequences, nagpreventa sa motor damage ug system failures.
True RMS Measurement: Nagaseguro sa accurate nga voltage detection, bisan sa mga kalibutan nga may harmonics o non-linear loads.
LED Indicators: Naghatag og clear, real-time status updates para sa easy monitoring ug diagnostics.
Compact Design: Ang 36mm width ug DIN rail mounting nagbutang niini nga ideal para sa space-efficient installations sa control panels
| Model | GRV8-4UVR Three Phase Under Voltage Relay |
| Operating temperature | -20℃ to +55℃（-4℉ to 131℉） |
| Storage temperature | -35℃ to +75℃（-22℉ to 158℉） |
| Trip delay time(Tu) | 0.1s |
| Tightening torque | 0.8Nm |
| Electrical life(AC1) | 1*105 |
| Mechanical life | 1*107 |
| Konb setting accuracy | 10% of scale value |
| Current rating | 10A/AC1 |
| Output | 1×SPDT |
| Rated supply voltage(Un) | 220V/230V/240V |
| Switching voltage | 250VAC/24VDC |
| Rated supply frequency | 45Hz-65Hz |
| Hysteresis | 5V |
| Weight | 63g,65g |
| Dimensions | 90×18×64mm |
| Power on delay time(Td) | Adjustable: 5min-15min |
| Recovery delay time(Tr) | Adjustable: 5min-15min |
| Mounting/DIN rail | Din rail EN/IEC 60715 |
| Standards | EN 60255-1,IEC60947-5-1 |
| Overvoltage category | III |
| Protection degree | IP40 for front panel/IP20 terminals |
| Monitoring terminials | L1-L2-L3-N |
| Supply terminals | L1-N |
| Under voltage threshold | R:fixed 75% of Un |
| Function | Under voltage |
| Operating position | any |
| Supply indication | green LED |
| Output indication | red LED |
| Measurement error | ≤1% |
| Pollution degree | 2 |
| Max.cable size(mm²） | solid wire max.1*2.5 or 2*1.5/with sleeve max.1*2.5（AWG 12） |
