The Honeywell T631C1012 SPDT temperature switch is a 120V, SPDT (single-pole, double-throw) device used to switch between two circuits based on temperature. It is rated for 16 A with a maximum switching voltage of 250 V and has a switching range of 20–90 °F. The common contact toggles between normally open and normally closed outputs as the temperature crosses the setpoint, enabling on/off control of heating or cooling loads. Typical applications include temperature-based control in HVAC equipment, industrial machinery, and appliances that require a defined on/off response at a specified temperature.
