Temperature Controller Thermostat Switch Adjustable Thermostat, AC 250V 16A, 50-300°C Features both normally closed and normally open functions. Specifications: Material: Metal, Plastic, Ceramic Shaft Diameter: 5mm Shaft Length: 50mm Cable Length: 70cm Voltage: ≤AC 250V Current: 16A Temperature Range: 50°C-300°C Lifespan: >100,000 cycles Dielectric Strength: AC2000V/1min Insulation Resistance: ≥100MΩ Contact Resistance: ≤50mΩ Insulation Resistance (after humidity test): ≥10MΩ Temperature Response Speed: ≤1.0°C/min Minimum Current: 200mA Performance Principle: When the temperature of the controlled object changes, the thermostat's working fluid undergoes thermal expansion and contraction, creating a physical phenomenon (change in working fluid volume). The temperature-sensing bellows communicates with the actuator to produce expansion or contraction. Through a lever mechanism, the switch function is activated to maintain constant temperature. Suitable for: Primarily used in household appliances (showers, drum-type washing machines, heaters), electrical equipment (automatic stainless steel water heaters, electric frying pans, food processors), and refrigeration (kitchen freezers, fresh-keeping cabinets, refrigerators, ice makers, fish tanks, cold drink dispensers, heating machines) requiring temperature control. Package Includes: 1 x Mechanical Thermostat