... structure merits of domestic and abroad Inteligent AC low voltage power switch boxes, like GCK, GCS, MNS. With the independent ... is suitable to rated voltage 400v/690v and below,rated power 50Hz/60Hz, the main bus bar(horizontal bus bar ... HNS Inteligent AC low voltage power switch box.Main features of electrical and agenciesApplication object power distribution and controlConformity GB7251.1 ...