Multipole electrical connector with spring contacts

An improved multipole electrical connector with spring contacts suitable for making electrical wiring for civil and/or industrial purposes, comprising a connector body inside of which are arranged the spring contacts for the locking of conductors inserted in receptacles formed in said connector body, the spring contacts which lock/unlock the conductors by means of actuator pins sliding with respect to additional receptacles, wherein the connector further comprises a means for a quick and easy access of a probe of a testing device to allow electrical measurements with the conductors blocked by the actuator pins, said means being formed on the actuator pins themselves.