Refrigerant Fan Delay Controller; Item Fan Delay Controller; Used On Item Refrigerant; Switch Type SPDT; Temperature Rating 40 to 75 Deg F; Sensing Element 3/8 Inch x 4 Inch Cross Ambient Bulb; Application Beverage/Reach-In Medium Temperature; Includes 60 Inch CapillaryThe Ranco® Fan Controls terminate defrost, and delay the evaporator fan operation on electric heat, hot gas and reverse cycle commercial refrigeration systems