Tork Timers 1109A 24-Hour Mechanical Timer Switch 120/208-277V

The Tork Timers 1109A 24-Hour Mechanical Timer Switch 120/208-277V is an electromechanical control unit that automatically switches electrical circuits on and off according to a schedule within an HVAC system. It operates using a 24-hour dial equipment with trippers that control load activation and deactivation at specific times. It is used to manage fans, ventilation equipment, and auxiliary heating or cooling loads to improve energy efficiency and system scheduling. Installed in control panels or electrical enclosures, it supports accurate time-based operation in commercial and industrial applications where repetitive cycling is required for ventilation, temperature control, or system load management.