Abstract: Modular electrical switches and shunts for use in programming electric/electronic equipment are disclosed comprising an electrically insulating, substantially rectangular housing, and a pair of elongated electrically conducting terminals secured to the base of the housing. Electrical switches of this invention contain an electrically conducting contact bearing disposed within the housing and adapted to be movable between a first position and a second position corresponding respectively to the "off" and "on" configurations of the electrical switch in response to the movement of a switch actuating member slidably disposed within the housing. A mounting bar and cartridge-dispenser for storing, transporting and installing and removing the above-described switches and shunts from integrated electrical circuits are also described.