10PCS KSD303 10A 110°C Manual Reset Thermostat (Normally Closed) Key benefits Reliable overtemperature protection: The KSD303 opens its circuit at a preset 110°C to protect equipment and components from overheating. Manualreset safety: After a trip, the switch remains open until manually reset, preventing automatic restarts and reducing the risk of repeated overheating. Value pack: Ten identical switches provide spare parts for maintenance schedules or multiple installations, lowering downtime and replacement cost. What this switch does Model: KSD303 Action: Normally closed (NC) temperature switch — circuit is closed under normal temperature and opens when the preset temperature is reached. Reset type: Manual reset — requires user action to restore the closed circuit after a trip. Current rating: 10A — suitable for moderate current loads up to the rated value. Trip temperature: 110°C (degrees Celsius) — designed to activate at this fixed temperature setpoint. Key attributes Functionality: Temperatureactuated on/off switching for thermal protection and control. Compatibility: Designed for applications that accept a KSD303style NC manual reset thermostat. Use in series with the load to interrupt power when the temperature limit is reached. Performance: Rated to switch loads up to 10A at the specified conditions; the manual reset prevents autorestart until the device is checked or cooled. Quantity: Pack of 10 identical KSD303 switches—convenient for repairs, spares, or multipoint installations. Practical use cases Appliance safety: Protect heating elements, small space heaters, or other household appliances from overheating by interrupting power at 110°C. Electrical equipment protection: Provide thermal cutout for transformers, power supplies, motors, or battery systems where a 110°C trip point and manual reset are required. Industrial and hobby systems: Use as an overtemperature safeguard in DIY equipment, test rigs, or assemblyline machinery that needs a reliable, manually resettable thermal switch. Installation and handling notes Install the KSD303 in series with the load you want to protect so it can open the circuit when the temperature reaches 110°C. After a trip, perform a visual inspection and verify the source of overheating before manually resetting the switch. Use wiring and mounting practices appropriate for the switch's 10A rating and the surrounding environment. Follow applicable safety standards for electrical installations. What's included 10 × KSD303 manualreset temperature switches (Normally Closed, 10A, 110°C) This pack supplies multiple KSD303 10A, 110°C manual reset thermostats for maintenance, replacements, or multipoint thermal protection where a normally closed temperature switch with manual reset is required.