Electric Wall & Ceiling Heater Thermostat,120/277V AC,1 3/8 in Overall Depth,2 1/2 in Overall Height,1 3/8 in Overall Width,Number of Poles 1,120/277V AC Thermostat Control Voltage,25 A,Contact Rating 22A @ 120 to 277V AC,Housing Color Black,Mounting Hardware,Mounting Type Unit Mount,Programming Capability Not Programmable,SPST,Mechanical Selector Dial,UL Listed,Maximum Operating Temperature 95 Degrees F