An electrical connector comprises a dielectric body having a socket. A plurality of pivotable arms are hinged to the dielectric body. A releasable locking mechanism holds the pivotable arms in a locked position that releases with an outward pulling force exceeding a threshold force. The releasable locking mechanism comprises two or more latch members that are biased by corresponding springs against the corresponding pivotable arms. Each pivotable arm has a protrusion that divides a first region from a second region of the pivotable arm.