An electrical connector having a first connector part and a second connector part, the first connector part with at least one electrically conductive pin and the second connector part with at least one shuttle pin, the conductive pin having two or more electrically conductive cores, each conductive core being provided with an external electrical contact and an insulating material forming a watertight seal with the conductive core and the electrical contact. The conductive cores include two or more cores spaced from one another to form the conductive pin. Facing surfaces of the two or more cores are spaced by an air gap with insulating material in the air gap and overmoulded insulating material is in contact with other surfaces of the conductive cores.