Patent ID: 7750789

Claim:
A high-power breaker switch comprising: a connector housing having plug-in contact elements, wherein the connector housing has a fuse chamber for holding a fuse, wherein the fuse chamber has an opening through which the fuse can be inserted and removed from the fuse chamber, wherein a fuse held in the fuse chamber is electrically connected with the plug-in contact elements; a socket housing having socket contacts; an operating lever pivotably mounting the connector housing to the socket housing such that the connector housing is movable with the operating lever relative to the socket housing between a starting position and a final position, wherein in the starting position the connector housing is disengaged from the socket housing such that the plug-in contact elements are disengaged from the socket contacts, wherein in the final position the connector housing is engaged with the socket housing such that the plug-in contact elements are engaged and electrically connected with the socket contacts; and a cover assembly movably connected to the connector housing to move between an opened position and a closed position, wherein in the opened position the cover assembly opens the opening of the fuse chamber, wherein in the closed position the cover assembly closes the opening of the fuse chamber; wherein the operating lever and the cover assembly are configured such that when the cover assembly is in the opened position the cover assembly prevents the connector housing with the operating lever from moving from the starting position to the final position thereby preventing the plug-in contact elements from engaging and electrically connecting with the socket contacts when the cover assembly is in the opened position.