ATC Diversified – TSD Series – Delay On Release Solid State

The TSD Series is a family of rugged, high-reliability OFF-delay solid state output time delay relays (TDRs), available in both fixed and adjustable time versions. Voltage is continuously applied to the input, while an external isolated switch controls the timer. When closed (momentary or maintained), the load energizes and the delay period begins. Upon completion of the delay period, the load de-energizes. When closed, the load energizes. Opening the switch initiates the delay period. If the control switch recloses during the delay period, the load remains energized and the timer resets to zero.

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