One advantage of modeling this style of derail is the ease with which it can be made operational. Since our project started as a stardard turnout section, it can be powered by the same methods used to control any of your other switches. The same similarity exists on the prototype, and derail hardware is normally identical to what is used for switches.
If you do not want the derail to be operational, you may want to solder the point rail to the stock rail to prevent accidental opening and improve electrical conductivity.
Manual Control
Since most derails are manually thrown, and since you will probably not use this frequently, a common ground throw may be the easiest option. Many varieties and styles are available in every scale. Simply attach the ground throw to the end of the throwbar per the instructions for the parts you've selected.
Powered Control
If you desire a powered derail, you can install an electric switch motor or machine just as you would for a conventional turnout. Although most prototype derails are manual devices, a powered derail could have good uses on a model railroad.
If the motor is driven by a stationary decoder through a Digital Command Control system, some of the automated features of these devices could be used to make the operation of this derail automatic for added protection. Even without the decoder, the motor for this derail could be wired in parallel with a motor for the turnout leading to the spur where the derail is located. This way when the siding is lined, the derail is automatically closed.
