The PECO PL-10E Turnout Motor with Extended Operating Pin is designed for under baseboard mounting.
The pin passes through the baseboard to move the turnout using a 10mm hole rather than the larger hole that would be needed if the motor was connected directly to the turnout.
The PL-9 mounting plate connects to the motor and then screws onto the baseboard.
The PL-10 turnout motor uses a well proven design that has two coils that are energised alternately to move the turnout blade.
If you use an AC current the point motor will buzz, the motor will work very well using a DC capacitor discharge unit with no buzz.