Sealed electrical switch, has sealing unit including parts with closed edges divided into two intersection points, where one of parts is positioned on joint plane defined at level of support zone among cover, casing and control unit

摘要

The switch has an electrical contact opening and closing mechanism (3) including a control unit (3A) i.e. control head, that is accessible from an exterior of an inner volume of a casing (1) whose bottom (10) comprises holes. A sealing unit (4) i.e. joint, has parts (4A, 4B) provided with closed edges divided into two intersection points. The parts are positioned on joint planes defined at the level of support zones between a cover (2) and the casing and among the cover, the casing and the control unit, respectively. One of the closed edges encloses the control unit.