KSD314-Q series thermostat has two operating temperatures, which have two functions: temperature control and temperature limit. The temperature control function is used for temperature control under normal conditions and can be reset. The corresponding operating temperature is called temperature control temperature. The temperature limit function is used for the cut-off protection during abnormal overheating and cannot be reset. The corresponding operating temperature is called the temperature limit temperature. Generally, the temperature limit temperature is higher than the temperature control temperature. This product is equivalent to a combination of KSD314-V and KSD314-N.