Marklin 24997 - C-Track Uncoupler Track (electric)
94.2 mm / 3-11/16 inches, electric actuation. Use a switch box (like Marklin 72720) to operate.
When you want to control these through your digital system (when you have, for example, a Marklin Central Station or ESU Ecos) you need to connect the uncoupler track to a K-83 style decoder (like Marklin 60832 or ESU 51800) .
Light Mast Marklin 74997 is made for the Uncoupler Track.