<p>Industrial truck comprises a plastic shell (16) inserted into an opening of a housing (14) for holding a mains plug (18). The shell has a base into which an opening for a mains cable (20) is formed. Preferred Features: The shell is deep enough for the mains plug not to protrude over the edge of the shell or the outer contour of the housing. The opening for receiving the shell is formed in an upwardly facing surface of the housing.</p>