Refrigeration Temperature Controller; Voltage Rating 24 to 277 Volt; Control Mode On/Off, SPST; Instrument Range -3 Deg F (Normal Off), 5.5 Deg F (Normal On), 8.5 Deg F (Differential), -24 Deg F (Cold Off), 20.5 Deg F (Warm On); Operating Temperature -34 to 67 Deg F; Application Refrigeration System; Approval UL (Canada and US); Type Adaptable Constant Differential Control; Current Rating 16 Amp at 277 Volt AC; Terminal Size 0.25 Inch; Capillary Length 84 InchThe Ranco® A Series Temperature Controls are designed for refrigeration applications that require defrosting the evaporator coil when the compressor is in the off cycle. The A Series is typically used in vending machines, automatic beverage dispensers, reach-in coolers and medium temperature commercial equipment.