SKU: SENS-3572
📋 GST Invoice Available

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

₹12.00 (Inclusive of all taxes)
Out of Stock

The KSD302 is a ceramic-bodied, normally open (NC) thermal switch designed for precise 110°C temperature control in electrical circuits. It is rated for 250V AC/DC and 10A, making it suitable for direct integration into appliances, power supplies, and industrial control systems requiring reliable over-temperature protection.

Features

  • Ceramic housing for high thermal conductivity and electrical insulation
  • Normally Open (NO) contact configuration, opens at 110°C setpoint
  • Rated for 250V AC/DC and 10A switching capacity
  • Compact and robust design for direct PCB or chassis mounting
  • Ideal for over-temperature protection in power circuits and appliances

Out of stock

Description

The KSD302 is a bimetallic disc thermostat housed in a durable ceramic package. When the ambient temperature reaches its calibrated setpoint of 110°C, the internal bimetallic element deforms, causing the normally closed (NC) contacts to snap open, thereby interrupting the circuit. This provides a fail-safe, mechanical method of temperature control without requiring external power.

Its ceramic construction offers excellent dielectric strength, thermal stability, and resistance to arcing, making it suitable for direct integration into mains-voltage applications. The switch resets automatically once the temperature falls below the hysteresis point, typically several degrees below the setpoint, ensuring cyclical protection for motors, transformers, heaters, and other electrical loads.

Key Features

  • Precision bimetallic snap-action mechanism for accurate 110°C actuation
  • Ceramic enclosure ensures high electrical insulation and heat resistance
  • Rugged construction for long-term reliability in demanding environments
  • Simple two-terminal design for easy series connection in a live circuit
  • High-value build providing robust thermal protection without complex electronics

Applications

  • Over-temperature cut-off protection in power supplies and battery chargers
  • Thermal safety switch in coffee makers, rice cookers, and other small appliances
  • Motor winding protection in fans, pumps, and compressors
  • Temperature limiting in transformers, solenoids, and heating elements
  • Embedded thermal management in industrial control cabinets

Technical Specifications

Model NumberKSD302
Switch TypeNormally Open (NO) Thermal Switch
Actuation Temperature110°C
Rated Voltage250V AC/DC
Rated Current10A
Housing MaterialCeramic
Contact ConfigurationSPST (Single-Pole, Single-Throw)
Approximate Weight3 g

Frequently Asked Questions

What is the switching logic of the KSD302 thermostat?

The KSD302 is a Normally Open (NO) bimetallic thermostat. This means the electrical contacts are open at room temperature. When the temperature rises to the calibrated setpoint of 110°C, the internal bimetallic disc snaps, closing the contacts to complete a circuit. It is commonly used in alarm or indicator circuits that activate upon overheating.

What is the maximum voltage and current this switch can handle?

This thermal switch is rated for a maximum of 250 Volts AC or DC and a continuous current of 10 Amperes. It is crucial to ensure your application operates within these limits to maintain reliable switching and prevent contact welding or failure. Do not exceed these ratings.

How do I install and wire this ceramic temperature switch?

Install the switch in direct thermal contact with the heat source (e.g., motor housing, heatsink) using the mounting hole. For a Normally Open (NO) configuration, wire the two terminals in series with the load you wish to control. When temperature reaches 110°C, the contacts will close to activate the connected circuit (e.g., a cooling fan or alarm).

Can the actuation temperature of 110°C be adjusted?

No, the KSD302 is a fixed-temperature, factory-calibrated bimetallic thermostat. Its actuation point is permanently set at 110°C with a built-in hysteresis (typically a few degrees) for reset. For adjustable temperature control, a separate electronic thermostat module with a potentiometer or digital interface would be required.

Package Includes

  • 1 x KSD302 Ceramic Temperature Control Switch (110°C, 250V 10A)

Additional Information

Weight 0.03 kg
Dimensions 9 × 3 × 6 cm