The explosion-protected cable reels are made of a conductive EPDM. The spool for the cable is designed to accommodate the explosionprotected flange sockets and, together with a welded, stainless steel enclosure, it forms the connection compartment in the type of protection «increased safety e». Connection is made on the Ex-e terminals of the flange sockets. Instead of a shaft, a pivot bearing is used. This has to be advantageous under rough operating conditions.