Related post: http://forum.arduino.cc/index.php?topic=442047.0
I am trying to use the following component: http://tinyurl.com/zoa25ft . What do the measures on the component mean? Can it handle electricity from 120 volts?
The circuit in question is: http://imgur.com/a/JAL2B
If the switch is open, then what is happening to the electricity? Will the switch overheat, bust, or etc?