铸铝合金外壳,表面喷塑.                                            ◆ The shell is of diecasted AI-alloy with plastic-sprayed surface.
■内装转换开关,用于电流60A以下的电气线              ◆ Inside is mounted conversion switch,used as power swtch to 
■路中,作为电源引入开关,并可控制电动机起                 controln motor,adjust speed,convet direction in the system of
   动、变速、停止、换向等.                                              not more than 60A.
■钢管或电缆布线均可.                                                 ◆ Suitable for steel pipe and cable.
■符合GB3836-2000,IEC60079标准要求.