This time delay fan control will delay fan on, and delay fan off. Control has fixed time delay ON of 1 second, and fixed time delay OFF of 60 seconds. Input voltage 24 v controlling 1 normally open contact, and one normally closed contact, rated 20 amps @ 240VAC.Replacement for Bard 8201-056; Mars 32393; Rheem 42-22515-01/02/03; Snyder General 1395336; Watsco 5893.