Aube by Honeywell TH115-A-240D Electric Heating 7-Day Programmable Baseboard Thermostat May be connected to an electric heating system such as an electric baseboard, a radiant ceiling, a floor heating system, an electric convector, etc. It is not compatible with a central heating system 3600-Watt 240-Volt 15-Ampere resistive 50 and 60-Hertz 4-wires and DPST Battery-free backup means no re-programming your schedule after power outage Contact relay switching action Dimensions (height by width by depth): 4.9-Inch by 2.8-Inch by 0.9-Inch