Check the listing for details. Normally Close Temperature Switch 65℃ N.C 5A Thermal Switch Thermostat 2pack. Condition: New. Listed at 14.06 USD. Specification : Product Name : ThermostatAction Temperature : 65℃Action Type: N.C (Normal Close)Power : 250V 5APin Type : 2 WiresWire Length : 70mm/2.76inchMain Body Material : PlasticLife : 100,000 times Package Content :2 x Thermostat Description :1.Normally Closed: The original state of temperature control switch contact is closed, and open when the temperature sensing exceeds the rated temperature.2.Features : temperature controller has the characteristics of small size, quick action, accurate temperature control, large current control and long service life.3.Working Principle : uses square bimetal sheet as temperature sensor. When the temperature rises to the action temperature, the square sheet jumps suddenly, the transmission contacts act quickly, and the circuit is disconnected.