A connector assembly, - comprising a first connector part and a second connector part, - the first connector part comprising a lever which is pivotably mounted on a base body of the first connector part for pivotable movement about a pivot axis between a first and a second position relative to the base body of the first connector part, - the connector assembly can be brought from a ready-to-mate state into a mated state by relative movement of the first and the second connector part (100, 200) towards each other along a connection axis and vice versa, - the first connector part accommodates a plurality of a first type of first contact elements and the second connector part accommodates a plurality of a first type of second contact elements wherein the first type of first contact elements matches the first type of second contact elements, - the plurality of the first type of first contact elements and the plurality of the first type of second contact elements being respectively connected in the mated state of the connector assembly, - wherein the lever is in the first position when the connector assembly is in the mated state, wherein at least one engaging portion of the lever is engaged with at least one counter-engaging portion of the second connector part, wherein the at least one engaging portion of the lever interacts with the at least one counter-engaging portion of the second connector part of the connector assembly in such a way, that the connector assembly is forcibly brought from the mated state into the ready-to-mate state by pivoting the lever from the first position into the second position when the connector assembly is in the mated state, characterized in that, the lever comprises a first cover shell thai fully covers the second connector part in the mated state of the connector assembly when the lever is in the first position. - comprising a first connector part and a second connector part, - the first connector part comprising a lever which is pivotably mounted on a base body of the first connector part for pivotable movement about a pivot axis between a first and a second position relative to the base body of the first connector part, - the connector assembly can be brought from a ready-to-mate state into a mated state by relative movement of the first and the second connector part (100, 200) towards each other along a connection axis and vice versa, - the first connector part accommodates a plurality of a first type of first contact elements and the second connector part accommodates a plurality of a first type of second contact elements wherein the first type of first contact elements matches the first type of second contact elements, - the plurality of the first type of first contact elements and the plurality of the first type of second contact elements being respectively connected in the mated state of the connector assembly, - wherein the lever is in the first position when the connector assembly is in the mated state, wherein at least one engaging portion of the lever is engaged with at least one counter-engaging portion of the second connector part, the at least one engaging portion of the lever interacts with the at least one counter-engaging portion of the second connector part of the connector assembly in such a way, that the connector assembly is forcibly brought from the mated state into the ready-to-mate state by pivoting the lever from the first position into the second position when the connector assembly is in the mated state, characterized in that, the lever comprises a first cover shell thai fully covers the second connector part in the mated state of the connector assembly when the lever is in the first position.