10-25-12Copy following link for wiring diagrams for Leviton double switch.http://waterheatertimer.org/How-to-wire-switches.html#doubleOnly 3 wires will connect to switch. Not 4If you blew breaker than you connected Neutral wire to switch.Neutral wire never connects to switch.Identify Hot wire.There is only one Hot wire that carries power to switch box.This wire connects to one side of device ... which side? ... the side where both screws are bonded together. If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7