JP-3 100-500A 进线熔断器+出线塑壳漏电
JP-4 600-1000A 进线熔断器+出线塑壳漏电
JP-4配变箱 630-1000A 熔断器+塑壳+接触器
JP4-C QSA+塑壳漏电+电容补偿