TDE/TUE Series Single-Shot Relay Output

The TDE/TUE series from the ATC Diversified Electronics division of Marsh Bellofram is a family of rugged, high-reliability single-shot relay outputs, designed to equip industrial machinery, conveyor belts, exhaust fans, heating systems, lubricators, and pump and motor controls with timed sequence delay, soft-start delay or auto-start functions for added machinery and equipment protection.Voltage is continuously applied to the input. An external isolated switch controls the timer. When closed (momentary or maintained), the relay energizes and the delay period begins. Upon completion of the delay period, the relay de-energizes.



  • External control switch initiates delay
  • Choose from multiple standard ranges
  • Optional lock nut, knob or fixed time adjustment
  • Plug-in style enclosure


  • Industrial machinery and equipment
  • Conveyor belts
  • Exhaust fans
  • Heating systems
  • Lubricators
  • Pump and motor controls
  • Flashing light control
  • Engine auto start control