This series is a heavy duty thermostat. It carries a bi-metal disc which gives a snap-action to open and close the thermostat according to the requested ambient temperature and over-heat protection.
Various option in terminal combination SPST or SPDT.
It offers high-precision temperature control with large wattage loading. It is commonly applied in Electrical Water Heater,Heating Equipment,and household heater. TC306 is auto-reset feature. There are normally open and normally closed. TC306P is a manual-reset thermostat. It carries a PTC pellet. When the thermostat opens, the PTC will be heated up to keep the thermostat at its pen-status, until the power input is unplug.