Abstract: Connector assembly comprising a first connector 1, which has a first housing 4 with a first end 5 and a second end 6, wherein the first housing 4 has first accommodation chambers 7 for first contact elements 8 and two second accommodation chambers 11 each for a second contact element 12 and wherein the first housing 4 has first locking means 15, has a slider 22, which is linearly displaceable in a limited manner on the first housing 4 in a direction away from the first end 5 towards the second end 6 and reversely between a first position and a second position, has, respectively, one receptacle 23 for one of the two second counter contact elements 26, wherein the two second counter contact elements 26 are electrically conductively connected to each other, a second connector 2, which has a second housing 34 with third accommodation chambers 40 arranged correspondingly to the first accommodation chambers 7 for the first counter contact elements 36 fitting to the first contact elements 8, has second lock