LCD Display Voltage Relay Phase Failure Phase Sequence Protection Relay

ApplicationsUsed 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 DescriptionFunction Setting TableParametersSetting rangeStep amountFactory settingRemarksOver-voltage action valueOFF-381V~500V1V437VM415OFF-221V~300V1V253VM240Over-voltage delay0.1~20S0.1s2s Under-voltage action value260V~379V-OFF1V323VM415150V~219V-OFF1V187VM240Under-voltage delay0.1~20s0.1s2s Unbalance rateOFF-5%~20%1%8% Asymmetry Delay time0.1~20s0.1s2s Phase sequence protectionON-OFF ON Start/reset delay0.3~30S0.1s0.3s Automatic resetON-OFF ON Note: "ON" is protection available,  "OFF" is protection unavailable. Technical ParametersRated supply voltageM415(3-phase 3-wire)AC200V~500VM240(3-phase 4-wire)AC125V~300VRated supply frequency50Hz/60HzVoltage measurement error≤1% (Entire setting range)Delay error±10%+0.1sMeasurement accuracy1%,  RMSPhase failure and phase sequence≤0.2sRated insulation voltage415VContact configuration capacity(A)10AIP ClassIP20Class of pollution3Electrical Life105Mechanical life106Altitude≤2000mAllowable relative humidity≤50%(40ºC)(No condensation)Use categoryAC-15Short circuit protector typeRT36-00  5AContact capacityUe/le:240V/1.5A,415V/0.95AOutput type1C/ODIN rail StandardWidth 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.