The Thermostat recessed for heath system with input terminal connection for window contact or control system is one of the best-selling devices of the Simon 75 series, its ease of use, with a rotary type of operation, is another of its advantages, besides being suitable for surface and flush mounting. It is a device with screw-terminal connection and a temperature range of 5 to 30 º C, in addition to having a signaling function. It is a thermostat widely used in large public and private buildings, such as hospitals, schools, offices or commercial establishments, thanks to its resistance to knocks and friction, which gives it metal materials with halogen-free thermoplastic insulation with which it has been developed. In case of connecting the thermostat to a under floor heating system recommended use of 20 A contactor ref. 68803-61.