TORK mechanical time switches simplify your life by automating repeating parts of your schedule, saving you time, energy and money. Use the TORK P69 ON/OFF trippers to easily set ON/OFF cycles with a minimum ON time of 1 hour and a minimum OFF time of 2 hours with a minimum of 8 hours between OFF cycles on TORK W-Series 7-day mechanical time dials. W-Series time switches include 7 pairs of trippers and can be set with two ON/OFF pairs per day on a 7-day calendar. When it comes to timekeeping and electrical automations you can count on, trust in the reliable name of TORK, a pioneer in the industry since 1922.