TDT Series True OFF-Delay Relay Output

When voltage is applied to the input, the relay energizes. When voltage is removed, the OFF delay begins. Upon completion of the delay period, the relay de-energizes. Reset is accomplished by reapplying voltage to the input terminals.
NOTE: If voltage is reapplied during the delay period, the relay remains picked up and the timer resets to zero. Voltage must be applied for a minimum of 0.5 seconds to assure proper operation.


  • Timing Begins when Voltage is Removed
  • Models Available from 0.1-300 Seconds
  • Optional Lock Nut, Knob or Fixed Time Adjustment
  • Plug-In Style Enclosure