Retrofit kit for C Track turnouts in optimized design. Dual coil drive with limit switching. Operation via control panel (e.g., 72720) or digital decoder (74461). Feedback possible with 7271/72710 control panel. For turnouts, the electric drive can be easily installed and connected later without special tools. The drive is concealed in the ballast bed, underfloor installation is not required. It is encapsulated to prevent contamination and protected against overload by a limit switch. It is controlled via the normal control panel, the control panel with feedback or via digital decoder. The manual control lever can remain in function.