NJR2 - D series Marine lifting motor soft starter based on double CPU control technology as the core, the advanced control thyristor module, implementation (cage) three-phase ac asynchronous motor soft start, soft stop function, at the same time with overload, input phase, the output phase, load short circuit, starting current limiting overtime, overvoltage, undervoltage protection function. This product is mainly used with the complete set of control cabinet, and must be connected with the corresponding specifications of the bypass ac contactor. The product specification covers 7.5kw ~500kW(squirrel-cage type) three-phase ac asynchronous motor, widely used in metallurgy, fire, mining, water supply, municipal, food, cement, petrochemical and other fields of motor transmission equipment, is the traditional star - triangle starting, lotus root step-down starting the most ideal replacement products.

　　Standard: GB 14048.6 IEC 60947-4-2.

　　Technical parameters and performance

　　1 power supply voltage: three-phase ac AC380V(15%), 50Hz/60Hz(2%)

　　Starting current: limit starting current from 0.5 to 5 times

　　3 slope descent time: 0s~60s

　　4 soft starting base voltage: 30%Ue~70%Ue

　　Sudden start time: 0.1s

　　6 environmental requirements

　　If the altitude is more than 1000 meters, the capacity should be reduced correspondingly, and the current above 1000 meters should be reduced by 0.5% for each increase of 100 meters;

　　The environment temperature between - 10 ℃ and 40 ℃;

　　Relative humidity shall not exceed 95%

　　No condensation, no flammable and explosive gas, no conductive dust, well-ventilated indoor environment.