TwistLock a basic electric solenoid motor, for operating (in the main) turnouts.
It is powered by a normal 16vDC supply (and can take up to 3 amps) and is fully compatible with all PECO turnouts up to O gauge (and can handle many other proprietary brands too). But no longer will any soldering of wires to the terminals be necessary, nor the cutting of large holes in the baseboard.
Each motor is supplied with a template, which the modeller uses to accurately mark the position of three holes that need to be drilled. The two outer holes are used to attach mounting studs beneath the baseboard. The larger centre hole is where the drive pin of the motor is positioned and threaded through the tie bar of the turnout. The motor is then simply twisted, and locked, into position and will remain firmly attached when operated. An extra operating bar, and spacers for the studs is included with every motor, enabling the above-board mounting of the motor where needed.