TDF Repeat Cycle-OFF Time First Relay Output

Application of voltage to the input of the timer initiates the OFF time. Upon completion of the OFF time, the relay energizes and the ON time begins. Upon completion of the ON time, the relay de-energizes and one cycle is completed. This OFF/ON cycling continues until voltage is removed from the input. The OFF/ON time periods are independently adjustable.



  • OFF Time First
  • Many Standard Ranges
  • Settings for OFF Time and ON Time
  • Optional Lock Nut, Knob or Fixed Time Adjustment
  • Plug-In Style Enclosure