Series 33224V Fan & Heat One Switch SPST Thermal Sequencer with Screw Terminals and Quick Connects, Non-Positional, Volts: 24V & 25, Width: 2-4/5",Height: 1-7/10", Length: 3-3/9", Phase: Single, Time Delay Range: 1 Min, Power Source: Electric, Application: Air Conditioner, Refrigeration, Electric Heating, Furnace, Heat Pump