Spreader bar for distributing a lifting force from a crane onto a first lifting region and a second lifting region of a load to be lifted, the lifting regions (3,4) being separated by a horizontal distance (d), wherein the spreader bar has a frame and comprises a first system for applying a part of the lifting force to the first lifting region and a second system for applying another part of the lifting force to the second lifting region, wherein each of the first and second systems (7,8) comprises: - a lifting pulley arranged on the frame, so that a horizontal distance between the lifting pulleys of the first and second systems (7,8) corresponds to the horizontal distance (d) between the first and second lifting regions (3,4), - a connector for connecting the spreader bar to the respective lifting region (3,4) via a main wire guided by the lifting pulley, characterised in that each of the first and second system (7, 8) further comprises: - an actuator arranged on the frame for vertically moving the connector via an actuator wire, - a suspension element connecting the actuator wire and the main wire, and - a compensator mounted on the frame for acting on the actuator wire to compensate for possible fluctuations in the vertical distance between the respective lifting region (3,4) of the load and the spreader bar and thereby ensure that the main wire and the actuator wire remain under tension after the connector has been connected to the load, and wherein, for each of the first and second systems (7,8), the suspension element is movable along a support having a blocking element arranged at a predetermined position, so that when the suspension element is engaged with the blocking element, no further compensation will take place by the compensator, and the lifting force from the crane can be transferred to the main wire in order to lift the load. wherein the spreader bar has a frame and comprises a first system for applying a part of the lifting force to the first lifting region and a second system for applying another part of the lifting force to the second lifting region, wherein each of the first and second systems (7,8) comprises: - a lifting pulley arranged on the frame, so that a horizontal distance between the lifting pulleys of the first and second systems (7,8) corresponds to the horizontal distance (d) between the first and second lifting regions (3,4), - a connector for connecting the spreader bar to the respective lifting region (3,4) via a main wire guided by the lifting pulley, - a lifting pulley arranged on the frame, so that a horizontal distance between the lifting pulleys of the first and second systems (7,8) corresponds to the horizontal distance (d) between the first and second lifting regions (3,4), - a connector for connecting the spreader bar to the respective lifting region (3,4) via a main wire guided by the lifting pulley, characterised in that each of the first and second system (7, 8) further comprises: - an actuator arranged on the frame for vertically moving the connector via an actuator wire, - a suspension element connecting the actuator wire and the main wire, and - a compensator mounted on the frame for acting on the actuator wire to compensate for possible fluctuations in the vertical distance between the respective lifting region (3,4) of the load and the spreader bar and thereby ensure that the main wire and the actuator wire remain under tension after the connector has been connected to the load, and - an actuator arranged on the frame for vertically moving the connector via an actuator wire, - a suspension element connecting the actuator wire and the main wire, and - a compensator mounted on the frame for acting on the actuator wire to compensate for possible fluctuations in the vertical distance between the respective lifting region (3,4) of the load and the spreader bar and thereby ensure that the main wire and the actuator wire remain under tension after the connector has been connected to the load, and wherein, for each of the first and second systems (7,8), the suspension element is movable along a support having a blocking element arranged at a predetermined position, so that when the suspension element is engaged with the blocking element, no further compensation will take place by the compensator, and the lifting force from the crane can be transferred to the main wire in order to lift the load.