Abstract: A sealed push button switch in which the push button is mounted at the end of a movable control member and is connected thereto by means of a self adjusting connector element; the control member is movable against the action of a spring, within a support body, from a first position in which electrical contacts carried by the control member close the circuits connected to the switch itself, to a second position in which these circuits are open; and a resilient sealing bellows extending between the push button and one end of the support body.