A distribution block for attaching to a support rail extending in a support direction comprises an insulating housing, and a conductive member arranged in the insulating housing. A mounting assembly of the distribution block is connected to the insulating housing for attaching to the support rail. The distribution block is mountable on the support rail in a longitudinal configuration wherein the extension direction of the insulating housing is substantially parallel to the support direction, and in a transverse configuration wherein the extension direction of the insulating housing is transverse to the support direction.