WATSGB-250/4R双电源自动转换开关,施耐德WATSGB-400,WATSGA-100/4R,WATSGB-32WATSGB-250双电源自动转换开关,WATSGA-100/4R施耐德万高双电源开关WATSGA-125/4R施耐德万高双电源开关WATSGA-160/4R施耐德万高双电源开关WATSGA-200/4R施耐德万高双电源开关WATSGA-250/4R施耐德万高双电源开关WATSGA-320/4R施耐德万高双电源开关WATSGA-400/4R施耐德万高双电源开关WATSGA-500/4R施耐德万高双电源开关WATSGA-630/4R施耐德万高双电源开关WATSGA-800/4R施耐德万高双电源开关WATSGB-32/3R施耐德万高双电源开关WATSGB-63/3R施耐德万高双电源开关