Product Name: Intelligent Water Pump Controller M521 Model NO.: M521 Certification: CCC, ISO: 9001, CE Function: Monitoring Signal: Continuous Mathematical Model: Linear Structure: Closed-Loop Task: Program Size: 25.5*16.5*9.4cm Display Screen: LCD Electrical Screen Weight: 1.0kg Trademark: LEADING SCIENCE & TECHNOLOGY Transport Package: Paper Carton Specification: CE, ISO Origin: Changsha HS Code: 90328990 Product Description ApplicationsModel M521 is useful in all cases we need to control and protect single pump managing its turn-on and turn off by different electric installations.ModelM531Main technical data.Start typeDirect on line. Qty of controlled pumpSingle pump. Rated input voltage:AC380V Three phase50HZ/ 60HZ. Rated output power:0. 75kw-4kw (1 hp-5. 5hp)5. 5kw-7.5 kw (7.5hp-10hp)Protection functionOver load protectionPump stalled protectionDry run protectionUnder voltage protectionOver voltage protectionOpen phase protectionApplication&Control characteristicControl and protect universal pumpUsing water level sensor ,float switch or pressure switch to control pump start and stopApplied for water supply by liquid level control through float switch or liquid probeApplied for water supply by pressure control through pressure switch and pressure tankApplied for drainage by liquid level control through float switch or liquid probeOther featuresPush button calibrationMemory function when power off & recoveryPump last five fault record displaying Pump accumulative running time displaying Main installation dataWorking temperatureWorking humidityDegree of protectionInstall positionUnit dimension (L x W x H)-25ºC-- +55ºC20%--90%RH, no drips concretedIP22Wall mounting170×1 55×85mmTypical usage scenarios include:- Houses- Flats- Holidays houses- Farms- Water supply from wells- Irrigations of greenhouses, gardens, agriculture- Rain water reuse- Industrial plants- Waste water tank / Sewage sinkMain features:Built In function switchApplied for water supply by liquid level control through float switchApplied for water supply by pressure control through pressure switch and pressure tankApplied for drainage by liquid level control through float switchAutomatic stops the pump in the case of water shortage, protecting it from dry running without installing float switch in the wellAuto / Manual switchDynamic LCD displaying pump running stateProtect the pump against many faultsPush Button CalibrationStarts and stops the pump in accordance with the different liquid level or pressure settingReserved space for installing internal start capacitor of pump motorMain Specifications:Rated output power: 0.37KW-2.2KW (0.5HP-3HP)Rated input voltage: AC220V/50Hz Single Phase