... .designed for use with three phase induction motors JJR2 Digital intelligent soft starterapply to AC 50HZ,380V,660V,11 ... altitude of 3000m,environmental temperature -25°C~+40°C,rated humidity ≤ 90%, Non-condensing,non-flammable,explosive,easy to ... 5 fault reasons7) it can find starting current and max operation current online8) LCD displayWiring Diagram Dimension : Digital intelligent soft starter