switch fuse meaning in Chinese

开关保险丝
开关熔断器；保险丝开关掣

Switch fuse unit : triple pole with neutral for 100amp , 500 volts rating , re - wire able outdoor type switch fuse unit suitable for the above motor & starter , the housing of the switch fuse unit shall dust , moisture & water protected with anticorrosive paint
启动器/纽应该涂成铁蓝色或按制造工厂的标准色.应该有开关按钮.启动机壳必须是金属的,防尘,防潮,防水和防腐蚀性的