| Brand | MV Switchgear Accessories |
| Model NO. | Monitoring Voltage Relay GRV8-VW |
| Rated frequency | 50/60Hz |
| Series | GRV8 |
GRV8-VW isolation monitoring voltage relay is an intelligent protection device designed specifically for industrial automation and power systems. It integrates high-precision measurement, flexible configuration, and reliable protection, effectively ensuring the voltage safety of electrical equipment. Its innovative isolation monitoring technology can meet the voltage signal detection requirements under complex working conditions, and is an ideal solution for overvoltage protection and signal monitoring in power systems.
GRV8-VW Isolation Monitoring Voltage Relay Product Features:
1. Accurate measurement ensures reliability
By using True RMS measurement technology, complex waveform voltage parameters are accurately captured with a measurement accuracy of ± 1% over the full range, ensuring data authenticity even in industrial scenarios with severe harmonic interference.
2. Intelligent monitoring mode is optional
Supports independent monitoring or composite monitoring modes for overvoltage/undervoltage, with programmable threshold parameters. Users can flexibly configure protection strategies based on load characteristics to meet the differentiated voltage protection needs of different systems.
3. Dual contact independent control
Configure two sets of independently operable relay contacts (2CO), each set of contacts supporting normally open (NO)/normally closed (NC) mode switching, which can simultaneously monitor overvoltage and undervoltage states, as well as control different circuits separately.
4. Compact modular design
36mm ultra-thin width combined with 35mm standard card rail installation saves 75% of cabinet space, especially suitable for high-density distribution cabinets and mobile devices with limited space, supporting quick insertion and maintenance.
5. Isolation protection enhances safety
Built in 2000V electrical isolation barrier, effectively blocking strong electromagnetic interference, suitable for weak load capacity systems (such as PLC signal terminals) or voltage monitoring scenarios that require physical isolation, ensuring safe and stable signal acquisition.
| 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 |
