KSD302 Ceramic Temperature Control Switch Thermostat 110°C NC - 250V 10A

The Normally Closed (NC) contact means the switch is electrically closed at temperatures below its 110°C set point, allowing current to flow. When the temperature at the sensor reaches or exceeds 110°C, the internal bimetallic disc snaps, mechanically opening the contacts to break the circuit. This provides a fail-safe over-temperature cutoff for the protected device or circuit.

Yes, the specification of 250V is typically applicable to both AC and DC loads. It is rated to switch up to 10A at this voltage. For DC loads, special attention should be paid to arc suppression if inductive loads (like motors or solenoids) are being switched, as the absence of AC zero-crossing can lead to contact wear.

Installation is straightforward. The switch has two terminals. It should be mounted securely with its ceramic body in good thermal contact with the surface or component you wish to monitor (e.g., a motor housing or heatsink). Wire it in series with the load (like a heating element or motor) and the power source. Ensure wiring is rated for the 10A current. The switch will automatically open the circuit upon reaching 110°C.

The KSD302 series typically functions as a self-resetting (auto-reset) thermostat. After it trips at 110°C and opens the circuit, it will automatically close the contacts again once the temperature cools below the reset point (usually several degrees below the trip point). Always verify the specific model's reset behavior for your critical safety application.