Hello
Here is a way to make a switch which can be electrically triggered.
Instead of a normal switch, it must be a circuit Breaker.
Video link: http://video.yahoo.com/watch/5625737/14760232
It's done this way:
http://img204.imageshack.us/img204/1518/diagramuk.png
The circuit breaker is a old model from Heinemann Electric Trenton, type BC10.
The panel is my first prototype made from material called Flexply.
Here shown with back-light
http://img30.imageshack.us/img30/6931/dscf0010hjv.jpg