Temperature controller temperature control switch thermostat knob Adjustable thermostat AC 250V 16A 50-300 C Three feet is a normally closed and a normally open function Specifications: Material: metal,plastics,ceramics, Rod rough: 5mm Rod length: 50mm Cable length: 70cm Voltage: AC 250V Current: 16A Temperature: 50 C-300 C Product Life: 100,000 times Electric strength: AC2000V / 1min Normal insulation resistance: 100M Contact resistance: 50m For tide insulation resistance: 10M Temperature response rate: 1.0 C / min Minimum Current: 200mA Principle of performance: When the object to be controlled temperature changes So that the working fluid thermostat temperature to produce the corresponding portion of the thermal expansion and contraction Physical phenomena (working fluid volume change) Temperature sensing bellows portion communicating together produce expansion or contraction. Through leverage,driven by the switch-off operation,to achieve the purpose of constant temperature. Suitable for: Mainly used in household appliances (shower,drum-type washing machines,heaters), Electric equipment (stainless steel automatic water boilers,electric frying pans,food machinery,medical equipment), The refrigeration industry (kitchen freezer,fresh cabinet,refrigerator, Ice machine,fish pond,cold drink machine,heating machine) with temperature control. Package contains: 1 set of mechanical thermostat