Looking for a small, simple, RC on/off switch? This Pololu unit can dump 3A signaled from a simple R/C PWM signal!
Check this action out - It's a panel mount toggle switch, yay! This switch is unique in it's operation as it has a spring inside that automatically returns the switch to the center-OFF position.
The Pololu Pushbutton Power Switch is an alternative to bulky mechanical switches. Small switch with big current ability!