Littelfuse SSAC also called Interval, Interval Delay. When power is applied to the input voltage terminals, the load is energized immediately and the time delay cycle starts. At the end of the delay period, the timer transfers back to its pre-power position. Removal and re-application of input voltage resets the timer. Delayed Interval: Application of power to the input terminals starts the "Off" time. When this time is complete, the load energizes for the "On" time. At the end of the "On" time, the load de-energizes and remains in this state until the input power is removed and reapplied to start a new timing cycle. Both time periods can be individually adjusted.