Contacts can arc and degrade over years of use.
Resistant to voltage spikes and extreme ambient temperatures. termostat mehanicheskij shema
While specific diagrams vary by application, the basic electrical schematic of a mechanical thermostat is exceptionally simple. It operates as a temperature-controlled, single-pole switch. Standard 2-Wire Heating Circuit Contacts can arc and degrade over years of use
The wire sending power to the heater, fan, or valve. termostat mehanicheskij shema
In a basic heating system (like an electric baseboard or a simple boiler control), the thermostat is wired in series with the power supply and the load.