35900f0e_Macromatic_Industrial_Controls__Function
[Operation] Upon application of input voltage, the output is energized and the time delay (t) begins. At the end of the time delay (t), the output is de-energized and remains in that condition for the time delay (t). At the end of the time delay (t), the output is energized and the sequence repeats until input voltage is removed. [Function] 
FLASHER (On First)
Understanding Time Delay Relay Functions | Macromatic Industrial Controls
Function