Atlas Code 83 Switch Machines are made to convert manual Code 83 Snap Switch turnouts to remote control. These solenoid turnout motors are available for mounting to several Atlas turnouts as well as under-table versions. Control Box 150-56 (sold separately) allows use of standard three-wire wiring, and other single-pole, double-throw momentary electrical switches may be used (not included). Code 83 Switch Machines are part of the line ofAtlas HO Scale Code 83 track.