Connector terminal for connecting an electrical conductor, with a housing, a conductor insertion opening which is configured in the housing for inserting the conductor to be connected into the housing, a current bar which is arranged in the housing, a clamping spring which is arranged in the housing and has a holding limb and a clamping limb, the clamping limb having, at a free end, a clamping edge, by means of which the conductor to be connected can be clamped against the current bar, and an actuating element which is mounted displaceably in the housing and by means of which the clamping limb can be transferred into a clamping position and into an open position, the actuating element having a through opening, through which at least one part portion of the current bar is guided and through which the conductor to be connected can be guided, a conductor connector space being configured in the through opening, in which conductor connector space clamping of the conductor to be connected against the current bar takes place by means of the clamping limb in the through opening, the through opening being delimited at least by way of a top wall and by way of two side walls (20, 21) which are arranged perpendicularly with respect to the top wall, the two side walls (20, 21) overlapping the conductor connector space laterally, and an opening (23, 24) being configured in each of the two side walls (20, 21), characterized in that the clamping limb is guided in the openings (23, 24) during a transfer into the clamping position and into the open position, and in that a pressure surface (25, 26) is configured on each of the two side walls (20, 21), by means of which pressure surfaces (25, 26) a force can be applied in each case by the actuating element on the clamping limb during the transfer of the clamping limb from the clamping position into the open position, and in that the clamping limb has a first counterpressure surface (29, 30) and a second counterpressure surface (29, 30) which interact with the two pressure surfaces (25, 26) of the actuating element, the first counterpressure surface (29, 30) being integrally formed on a first longitudinal side edge (42, 43), and the second counterpressure surface (29, 30) being integrally formed on a second longitudinal side edge (42, 43) of the clamping limb lying opposite the first longitudinal side edge (42, 43), the two counterpressure surfaces (29, 30) protruding through the openings (23, 24) in the side walls (20, 21). a housing, a conductor insertion opening which is configured in the housing for inserting the conductor to be connected into the housing, a current bar which is arranged in the housing, a clamping spring which is arranged in the housing and has a holding limb and a clamping limb, the clamping limb having, at a free end, a clamping edge, by means of which the conductor to be connected can be clamped against the current bar, and an actuating element which is mounted displaceably in the housing and by means of which the clamping limb can be transferred into a clamping position and into an open position, the actuating element having a through opening, through which at least one part portion of the current bar is guided and through which the conductor to be connected can be guided, a conductor connector space being configured in the through opening, in which conductor connector space clamping of the conductor to be connected against the current bar takes place by means of the clamping limb in the through opening, the through opening being delimited at least by way of a top wall and by way of two side walls (20, 21) which are arranged perpendicularly with respect to the top wall, the two side walls (20, 21) overlapping the conductor connector space laterally, and an opening (23, 24) being configured in each of the two side walls (20, 21), characterized in that the clamping limb is guided in the openings (23, 24) during a transfer into the clamping position and into the open position, and in that a pressure surface (25, 26) is configured on each of the two side walls (20, 21), by means of which pressure surfaces (25, 26) a force can be applied in each case by the actuating element on the clamping limb during the transfer of the clamping limb from the clamping position into the open position, and in that the clamping limb has a first counterpressure surface (29, 30) and a second counterpressure surface (29, 30) which interact with the two pressure surfaces (25, 26) of the actuating element, the first counterpressure surface (29, 30) being integrally formed on a first longitudinal side edge (42, 43), and the second counterpressure surface (29, 30) being integrally formed on a second longitudinal side edge (42, 43) of the clamping limb lying opposite the first longitudinal side edge (42, 43), the two counterpressure surfaces (29, 30) protruding through the openings (23, 24) in the side walls (20, 21).