The PL series of Turnout Motors is tried and tested, over the last 40 years we have sold literally millions of these motors. Simple, reliable and good value. Requires a rectangular hole 40mm x 24mm when clipped directly to the underside of a Peco Turnout. Use the PL-12/12X if above baseboard mounting is required; attaching PL-13 and 15 Switches will enable switching for automatic polarity etc.