Abstract: A cable assembly for an industrial robot comprising power and signal cables, which by means of watertight bushings extend through a watertight connection box connected at each motor unit, such that the respective table serves all the motor units connected along the cable. Within the respective connection box the cables are unsheathed, whereby a number of conductors for the motor unit in question are deflected whereas the other conductors, without joining, together with the remaining part of the deflected conductors are left to pass to the next motor unit.