A chain link for an energy transmission chain, comprising two mutually spaced side plates which are interconnected by means of two crosspieces, delimit an interior for guiding cables and each have inner faces facing the interior. A frame module is provided and is mounted between the crosspieces, borders a portion of the interior and delimits at least one guide chamber for the purpose of internal subdivision. The frame module has two lateral walls and two transverse regions extending transversely thereto, wherein each transverse region covers part of the inner face of a crosspiece and forms a cable-protecting support face.