Abstract: An exemplary switching device connects and disconnects a power line to and from, respectively, at least an associated electrical load. The switching device includes at least one phase of the switching device having a housing that includes a movable contact configured to be coupled to and separated from a corresponding fixed contact, wherein the at least one phase of the switching device includes an electrically semiconducting assembly having an insulating support operatively associated with a plurality of semiconductor devices, wherein the plurality of semiconductor devices are connected in series and are electrically connected to said fixed contact and to said movable contact, and wherein the semiconducting assembly is configured to be installed into the housing to surround at least a portion of at least one of said fixed contact the movable contact when it is coupled to the fixed contact.

Abstract: Exemplary embodiments are directed to a switching device that connects and disconnects a power line to and from, respectively, at least an associated electrical load. The switching device includes at least one phase of the switching device having a housing that includes a movable contact configured to be coupled to and separated from a corresponding fixed contact, wherein the at least one phase of the switching device includes an electrically semiconducting assembly having an insulating support operatively associated with a plurality of semiconductor devices, wherein said plurality of semiconductor devices are connected in series and are electrically connected to said fixed contact and to said movable contact, and wherein said semiconducting assembly is configured to be installed into said housing to surround at least a portion of at least one of said fixed contact and said movable contact when it is coupled to the fixed contact.

Abstract: Apparatus for conveying air to radiators of motor vehicles and the like having a fan (10) having a plurality of blades (12) each radially mounted its own coupling device (31) on a central body (11) and able to be rotationally actuated about its longitudinal axis by an actuator (41,42,43) depending on the quantity of air required for correct cooling of the fluid, the apparatus has a device (60,160,260,360,460) for engaging/disengaging the transmission of the rotational movement from the drive (23,21;321a,21;421a, 21) generating movement to the fan (10).

Abstract: Apparatus for conveying air to radiators of motor vehicles and the like, comprising a fan (10) having a plurality of blades (12) each radially mounted by means of its own coupling device (31) on a central body (11) and able to be rotationally actuated about its longitudinal axis by means of actuating means (41,42,43) depending on the quantity of air required for correct cooling of the fluid, said apparatus comprising means (60;160;260;360;460) for engaging/ disengaging the transmission of the rotational movement from the means (23,21;321a,21;421a,21) generating said movement to the said fan (10).