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美国A－B公司的智能软起动器SMC是通用型晶体管智能马达控制器系列，用于标准的三相鼠笼式感应电动机的起动和制动过程。具有软起动、限流起动、全压起动、低速预置及援停等功能；在轻载时可以自动转入节能状态，可减小对设备的机械冲击、机械应力和对电网的冲击，智能型软起动
American A-B company’s intelligent soft starter SMC is a universal transistor intelligent motor controller series for the standard three-phase squirrel-cage induction motor starting and braking process. With soft-start, current-limit start, full-voltage start, low-speed preset and aid stops and other functions; light load automatically into the energy-saving state can reduce the mechanical impact of equipment, mechanical stress and impact on the grid, intelligent Soft start