Product Name: Intelligent Water Pump Controller (L531) Model NO.: L531 Certification: CE Function: Automatic Control Signal: Continuous Mathematical Model: Linear Structure: Closed-Loop Task: Program Phase: Three Phase Frequency: 50Hz Start Type: Dol Box Size: 43*32*18cm Carton Box: 69*58*46cm PCS/CTN: 6PCS Trademark: Leading science technology Transport Package: Paper Carton Specification: CE Origin: China HS Code: 90328990 Product Description Pump control panel Model K931 is applied to protect and control of single pump, three phase.ModelL531Main 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-11kw (7.5hp-15hp)15kw(20hp)Protection functionOver load protectionPump stalled protectionDry run protectionUnder voltage protectionOver voltage protectionRepeat start 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 featuresPump last five faults record displayingPump accumulative running time displayingPump shaft anti-rustLCD screen locked function under Auto state Push button calibrationMain installation dataWorking temperatureWorking humidityDegree of protectionInstall positionUnit dimension (L x W x H)-225ºC-- +55ºC20%--90%RH, no drips concretedIP54Wall mounting310×220×120mmMain features:Built in function switch:*Applied for water supply by liquid level control or pressure control or pressure control*Applied for drainage by liquid level control*Computer main board and module for industrial & civil pump*Auto manual switch Push button calibration*Pump stalled protection Transient surge protection*Over Voltage protection Under voltage protection*Open phase protection Over current protection*prompt for uncompleted parameter calibration*Dry running protection without installing float switch or liquid probe in the well*Digital Voltmeter & Ampere meter real time displaying*Pump accumulative running time display*Pump last five fault record displaying*RS485 communication interface*LCD displays pump running information*IP54 water proof casingMain Specifications:Rated input voltage: AC 380V / Three phaseRated frequence: 50Hz / 60HzRated output power of pump motor:L531: 0.75-4KW(1HP-5.5HP)5.5-11kw(7.5HP-15HP)15kw(20HP)