Applications
Used in air conditioning units, elevator machine room, pumps, fans and other motor control applications, as protection of over-voltage. Under-voltage, phase failure, phase sequence and phase unbalance. When the power supply is abnormal, turn off power supply to protect the equipment.
Features:
Built-in microprocessors, true RMS voltage measurement, voltage measurement accuracy ≤1%.Measuring frequency 45Hz~64Hz,button setting, LCD display voltage and fault information, protection can be turned on or off. Check phase voltage value by button, with N-phase phase failure protection, DIN rail mounting.
Model Description
Function Setting Table
Parameters | Setting range | Step amount | Factory setting | Remarks |
Over-voltage action value | OFF-381V~500V | 1V | 437V | M415 |
OFF-221V~300V | 1V | 253V | M240 |
Over-voltage delay | 0.1~20S | 0.1s | 2s | |
Under-voltage action value | 260V~379V-OFF | 1V | 323V | M415 |
150V~219V-OFF | 1V | 187V | M240 |
Under-voltage delay | 0.1~20s | 0.1s | 2s | |
Unbalance rate | OFF-5%~20% | 1% | 8% | |
Asymmetry Delay time | 0.1~20s | 0.1s | 2s | |
Phase sequence protection | ON-OFF | | ON | |
Start/reset delay | 0.3~30S | 0.1s | 0.3s | |
Automatic reset | ON-OFF | | ON | |
Note: "ON" is protection available, "OFF" is protection unavailable.
Technical Parameters
Rated supply voltage | M415(3-phase 3-wire)AC200V~500V M240(3-phase 4-wire)AC125V~300V |
Rated supply frequency | 50Hz/60Hz |
Voltage measurement error | ≤1% (Entire setting range) |
Delay error | ±10%+0.1s |
Measurement accuracy | 1%, RMS |
Phase failure and phase sequence | ≤0.2s |
Rated insulation voltage | 415V |
Contact configuration capacity(A) | 10A |
IP Class | IP20 |
Class of pollution | 3 |
Electrical Life | 105 |
Mechanical life | 106 |
Altitude | ≤2000m |
Allowable relative humidity | ≤50%(40ºC)(No condensation) |
Use category | AC-15 |
Short circuit protector type | RT36-00 5A |
Contact capacity | Ue/le:240V/1.5A,415V/0.95A |
Output type | 1C/O |
DIN rail Standard | Width 35mm(IEC/EN60715) |
Function diagram
Dimensions (mm)
Model significance:
ZHRV2-S/M240 LCD display voltage relay, rated working voltage 220V-230V-240VAC (3-phase 4-wire). Over-voltage setting range: AC221V-300V, Under-voltage setting range: AC150V-219V.