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ZHRV2-S LCD Voltage Relay
Function Features:1.Voltage value and fault message displayed through LCD.
2.Protection against over-voltage, under-voltage, phase failure, asymmetry and phase sequence is available.
3.Protection parameters are set through key-press, and the protection function can be turned on and off freely.
4.Voltage measurement accuracy ≤1%(True RMS measurement).
5.Measurement frequency 45Hz~65Hz.
6.Three-phase voltage value query through key-press.
7.Testing and manual reset can be conducted through key-press.
8. Three-phase four-wire system features N-phase failure protective
Parameters | Setting range | Step | Factory default | Remarks |
Over-voltage operation value | 0FF-381V~500V | 1V | 437V | M415 |
0FF-221V~300V | 1V | 253V | M240 | |
Over-voltage delay time | 0.1~20s | 0.1s | 2s | |
Under-voltage operation value | 260V~379V off | 1V | 323V | M415 |
150V~219V off | 1V | 187V | M240 | |
Under-voltage delay time | 0.1~20s | 0.1s | 2S | |
Unbalance Ratio | OFF-5%~20% | 1% | 8% | |
Unbalance Delay time | 0.1~20s | 0.1s | 2S | |
Phase sequence protection | ON-OFF | ON | ||
Start-reset delay time | 0.3-30S | 0.1S | 0.3S | |
Automatic | ON-OFF | ON | ||
Note: “ ON” means activating protection function, and “ OFF” means inactivating protection function. | ||||
Rated supply voltage: M240(Three phase four wire): 125...300VAC M415(3 phase 3 wire): 200...500VAC |
Control ciruit frequency: 50/60Hz |
Voltage hysteresis: M415: 6V; M240: 5V |
Measurement error: ≤1%over the whole range with voltage variation |
Tripping time delay: ±10%+0.1s |
Rated insulation voltage: 415V |
Max. breaking current: 5A |
Relative humidity: ≤50%(40°C) |
Utilisation category: AC-15 |
Conventional heat current: 5A |
Contact capacity: Ue/Ie:240V/1.5A; 415V/0.95A |
Output type: 1 C/O |
Mounting support: 35mm symmetrical DIN rail conforming to EN/IEC 60715 |
Pollution degree: 3 |
IP degree of protection: IP20 |
Electrical durability: 100000 cycles |
Mechanical durability: 1000000 cycles |
Height above sea level: ≤2000m |
Operation temperature: -5°C~40°C |
LCD Display Motor Voltage Protection Relay With Multi Protective Function