... and current limit control JJR2-11KW-Z Soft starter low-power apply to AC 50HZ,380V,660V,11~500KW ... protection : IP20Environmental conditions: Below an altitude of 3000m,environmental temperature -25°C~+40°C,rated humidity ≤ 90%, Non-condensing,non-flammable,explosive,easy ... gases, Non-conductive dust,well-ventilated indoor vibration is less than 0.5G place2.Function and characteristic 1) Five kinds ...