The SIEMENS 6SL3130-6AE21-0AB0 is a SINAMICS S120 Line Module designed for use in sophisticated multi-axis drive systems. As a regulated infeed/feedback unit, it provides a stable DC link voltage for connected Motor Modules. This module is capable of both drawing power from the mains and regenerating braking energy back into the supply system, which significantly improves energy efficiency and reduces operating costs. Its compact Booksize format allows for space-saving installation in control cabinets, making it an ideal solution for applications in machine tools, production machines, and printing presses where high dynamic performance and precision are required.