Switch gear for interconnecting a plurality of power transmission lines including a number of high voltage switches arranged in three phases for routing power in multiple directions. The switches are pre-mounted on a beam to form a three phase unit as a unitized assembly which is attached in the field to a vertical support structure. Each phase includes a vertical break switch and two side break switches for a three-way switch. For a two-way, each phase includes two side break switches. The vertical break switch and the two side break switches for each phase are operatively and electrically connected to a common electric power interrupter. The unitized assembly for each phase has the insulators and power interrupter arranged in cantilevered horizontal relationship with the beam which is attached to the vertical support structure. Operating links between phases are operatively connected in a push-pull relationship with the high voltage outdoor electric switches.