Temperature Controller; Bulb Type Copper; Voltage Rating 120 to 240 Volt AC; Minimum AC Voltage Rating 120 Volt AC; Maximum AC Voltage Rating 240 Volt AC; Minimum DC Voltage Rating 0.25 Volt; Maximum DC Voltage Rating 12 Volt; Control Mode SPST; Display Type Analog; Operating Temperature 130 to 270 Deg F; Size 2 Inch Width x 2-1/8 Inch Depth x 5-5/8 Inch Height; Mounting Horizontal/Vertical Mount; Application Boiler, Storage Tank, Duct; Approval UL, CSA; Contact Rating 8 Amp at 120 Volt AC/5.1 Amp at 240 Volt AC (Full Load), 48 Amp at 120 Volt AC/30.6 Amp at 240 Volt AC (Locked Rotor); Capillary Length 66 Inch