Generic KSD301 Ceramic Temperature Controlled Switch Thermostat - 110°C NC, 250V 16A

The KSD301 uses a bimetallic snap-disc mechanism. Two metals with different thermal expansion rates are bonded together. As temperature rises to the 110°C setpoint, the disc snaps and physically opens the Normally Closed (NC) electrical contacts, breaking the circuit. It resets automatically once the temperature cools sufficiently below the trip point.

Yes. With a rating of 16A at 250V AC (4000W resistive load), the KSD301 can directly switch a 1500W heating element (drawing approximately 6.25A at 240V) in series. Ensure your application's continuous current does not exceed the 16A rating and that the voltage is within the 250V AC specification for safe and reliable operation.

Install the thermostat in direct thermal contact with the device or surface you wish to monitor. Wire it in series with the load (e.g., heater, motor) on the live (hot) AC line. In its normal state, the circuit is closed. When the local temperature exceeds 110°C, the contacts open, cutting power to the load. Ensure wiring terminals are secure and the ceramic body is properly mounted.