The electrical connector, having a tubular housing section, in which an insulating body is arranged which bears an electrical contact and is locked to the housing section via a locking device, which is engages with a receiving recess of the housing section, wherein the locking device has at least one flexible supporting element for the insulating body and the insulating body of the housing section is able to be unlocked releasably by a tool. According to the invention, the insulating body is releasable from the plug side of the housing section by a tool and the locking device and the receiving recess are realized separately in the circumferential direction of the housing section and have at least two locking parts that are separated from one another and a corresponding number of locking part receptacles which are at a distance to one another laterally.