Digital 3 phase voltage monitoring relay , JVR1000 Monitoring Phase Reversal Relay
Features:
- Microprocessor technology provides highly accurate and repeatable protection
- Built-in LCD and keypad afford a precise digital setting
- Compact modular 43mm housing
- Adjustable over and undervoltage,phase unbalance threshold
- Independent adjustable delay time for overvoltage,undervoltage,phase unbalance
- Adjustable reset method,automatic reset or manual reset
- 1NO&1NC contacts
- Failure recording with last 3 faults
Protective Functions
- Phase Loss (Failure)
- Phase sequence(reversal)
- Phase unbalance(Asymmetry)
- Undervoltage
- Overvoltage
Applications
- Pumps
- Fans
- Refrigeration Units
- Blowers
- Motors
- Compressors
- Lifts,Elevators
- Cranes
- Mining excavators and conveyors
| Rated supply voltage |
380VAC |
| Operating range |
300-490VAC |
| Operating frequency |
50HZ |
| Voltage hysteresis |
10V |
| Asymmetry hysteresis |
2% |
| Automatic reset time |
1.5s |
| Phase loss tripping time |
instant |
| Measurement error |
≤1% with adjustable voltage range |
| Failure recording |
Three times |
| Output type |
1NO&1NC |
| Contact capacity |
5A,250VAC/30VDC(resistive load) |
| Degree of protection |
IP20 |
| Working conditions |
-25℃~65℃,≤85%,RH,no-condensing |
| Mechanical durability |
1000000cycles |
| Dielectric strength |
＞2KVAC 1min |
| Weight |
130g |
| Dimension(HxWxD) |
80X43X54mm |
| Mounting |
35mm DIN Rail |
