A connector configured to couple plural wall elements like wall panels, the connector including a coupling including a first support that supports a locking hook that is pivotable from an idle position into an engagement position and movable into an interlocking position; a block including a locking bar that is arranged in a second support wherein the locking hook reaches behind the locking bar in the locking position; and a housing for the coupling or the block, the housing including a housing pass through opening wherein the locking hook passes through the housing pass through opening during a pivot movement from the idle position to the engagement position, wherein the housing includes a first housing half and a second housing half, wherein the housing pass through opening is closed by a cover wall against a pass through of the locking hook.