The EGLM-20 part of Igus is an energy chain management system used to help improve energy-efficiency in industries and manufacturing. It is designed to optimize the set up and maintenance of cables within an industrial-based environment. The system is comprised of a number of components such as the chain manager, cable carriers, and tension units. The chain manager is responsible for monitoring and controlling the tension and movement of cables, as well as protecting them from knockouts and snags. The cable carriers, meanwhile, help organize the chains of cables, allowing for easier and more efficient installation, set-up, and maintenance. Finally, the tension units are used to securely keep the cables in place and to ensure that they don't get too loose or too tight. The EGLM-20 system is an excellent choice for any industrial-based application looking to maximize its energy efficiency.