Connection retainer for connecting a shielding of at least one shielded cable to a carrier component , - wherein the connection retainer has a first retainer element and a second retainer element , - wherein the first retainer element has a first top region and the second retainer element has a second top region , - wherein the first top region and the second top region at least partially delimit a contact region , - wherein the at least one shielded cable can be guided through the contact region , - wherein the first retainer element and the second retainer element are electrically conductive, - wherein the first retainer element is connected to the second retainer element , - wherein the first top region on a side facing towards the second top region has a contact portion , which extends in the direction of the second top region and has a contact surface , - wherein the contact surface is arranged on a side of the contact portion that faces towards the second top region , - wherein the contact portion is configured to press the cable against the second top region , - wherein the first retainer element can be braced against the second retainer element to provide a clamping force (F S ), in order to use the clamping force (F S ) to press the contact surface of the contact portion of the first top region against the shielding of the cable and to form an electrical contact and a frictional engagement between the contact surface and the shielding , characterized in that - the contact portion has an at least partially trapezoidal or rectangular or polygonal or elliptical or stepped form - and - wherein the contact portion has a bulge . - wherein the connection retainer has a first retainer element and a second retainer element , - wherein the first retainer element has a first top region and the second retainer element has a second top region , - wherein the first top region and the second top region at least partially delimit a contact region , - wherein the at least one shielded cable can be guided through the contact region , - wherein the first retainer element and the second retainer element are electrically conductive, - wherein the first retainer element is connected to the second retainer element , - wherein the first top region on a side facing towards the second top region has a contact portion , which extends in the direction of the second top region and has a contact surface , - wherein the contact surface is arranged on a side of the contact portion that faces towards the second top region , - wherein the contact portion is configured to press the cable against the second top region , - wherein the first retainer element can be braced against the second retainer element to provide a clamping force (F S ), in order to use the clamping force (F S ) to press the contact surface of the contact portion of the first top region against the shielding of the cable and to form an electrical contact and a frictional engagement between the contact surface and the shielding , characterized in that - the contact portion has an at least partially trapezoidal or rectangular or polygonal or elliptical or stepped form - and - wherein the contact portion has a bulge . <EOS>