POWER SWITCHING SWITCH

摘要

PURPOSE: A power switching switch is provided to selectively connect 2 power supplies such as a normal power supply and an emergency power supply to a load side. CONSTITUTION: The power switching switch comprises: a moving core(16) connected to an operating lever(13); an operating lever(13) connected to a connecting lever(12) and being rotated about an operating shaft(30); a connecting lever(12) having a switching roller(11) in its end; a switching roller(11) being moved along a V guide groove(10); a press spring(15) for returning the operating lever(13); select levers(31,32) for guiding the switching roller(11) along the V guide groove(10); a pair of control levers(24a,24b) being moved by the moving of the switching roller(11) and being fixed to a pair of control shafts(19a,19b) to rotate them; a middle switching plate(25) for operating a pair of limit switches(35a,35b); and a pair of moving contacts(17a,17b).