DC Disconnectors STO

STO disconnectors are devices which are installed in stationary substations. They are used for no-load switching of electrical circuits. They are controlled manualy or by a motor unit with emergency control by a crank handle. Can be equipped with a locking system for mechanical blockage of the individual positions. The position of the movable power contact is signalized on the front panel and electrically by auxiliary contacts Modular design of the STO disconnector enables various versions.