SKU: SENS-3575
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Generic KSD302 Ceramic Temperature Control Switch Thermostat - Normally Closed NC, 105°C, 250V 10A

₹11.00 (Inclusive of all taxes)
Out of Stock

The KSD302 is a ceramic-bodied, normally closed (NC) thermal switch designed for precise temperature control up to 105°C, rated for 250V AC and 10A loads, suitable for integration into appliances, power supplies, and heating systems.

Features

  • Ceramic housing for high dielectric strength and thermal stability.
  • Normally Closed (NC) bimetallic snap-action switch opens at 105°C setpoint.
  • Rated for 250V AC / 10A resistive loads for robust circuit protection.
  • Compact and durable design for direct mounting in appliances and enclosures.
  • Fixed temperature calibration ensures reliable over-temperature cutoff.

Out of stock

Description

The KSD302 is a bimetallic, fixed-temperature thermal cutoff switch housed in a robust ceramic body. Its Normally Closed (NC) contacts remain closed under normal operating conditions, completing the circuit. When the ambient temperature reaches the calibrated setpoint of 105°C, the bimetallic disc snaps open, breaking the circuit to protect downstream components from overheating.

This switch is designed for direct series connection with heating elements, motors, or transformers in appliances, power supplies, and industrial control panels. The ceramic construction provides excellent electrical insulation, flame resistance, and long-term stability across its operational temperature range, making it a fundamental safety component in thermal management systems.

Key Features

  • Fixed-Actuation Bimetallic Thermostat with 105°C setpoint.
  • Ceramic housing ensures high voltage isolation and thermal endurance.
  • 10A @ 250V AC switching capacity for direct load control.
  • Normally Closed (NC) contact configuration for fail-safe circuit interruption.
  • Snap-action mechanism provides quick, positive contact separation.
  • Compact form factor for space-constrained installations.
  • Designed for reliable performance in appliance safety circuits.

Applications

  • Over-temperature protection in coffee makers, kettles, and small kitchen appliances.
  • Thermal cutoff safety for power supplies, battery chargers, and transformers.
  • Temperature control in incubators, soldering equipment, and heating pads.
  • Motor winding protection in fans, pumps, and other motor-driven devices.
  • General-purpose thermal safety in industrial control cabinets and electronic enclosures.

Technical Specifications

Model NumberKSD302
Switch TypeNormally Closed (NC) Bimetallic Thermostat
Actuation Temperature105 °C
Rated Voltage250 V AC
Rated Current10 A
Housing MaterialCeramic
Contact ConfigurationSPST-NC (Single Pole, Single Throw - Normally Closed)
Approximate Weight3 g

Frequently Asked Questions

What is the switching logic of the KSD302 thermostat?

The KSD302 is a Normally Closed (NC) bimetallic switch. Its contacts are closed at temperatures below its 105°C setpoint, allowing current to flow. When the temperature reaches or exceeds 105°C, the internal bimetallic disc snaps and opens the contacts, breaking the circuit to stop current flow and provide over-temperature protection.

What is the maximum electrical load this switch can handle?

This thermal switch is rated for a maximum of 10 Amperes at 250 Volts AC. It is designed for resistive loads typical in heating elements. For inductive loads like motors, derating or using it in conjunction with a relay is recommended to handle inrush currents and ensure longevity.

How should I mount and wire the KSD302 thermostat?

Mount the ceramic body securely to the surface or component whose temperature you need to monitor, ensuring good thermal contact for accurate response. Wire it in series with the load (e.g., heater) and the power source. The switch has two terminals; polarity does not matter for AC operation. Ensure wiring is rated for the full 10A current.

Is the actuation temperature adjustable?

No, the KSD302 features a fixed actuation temperature of 105°C. It is factory-calibrated and non-adjustable. For applications requiring a different trip point, you must select a thermal switch model with the corresponding fixed setpoint.

Package Includes

  • 1 x KSD302 Ceramic Temperature Control Switch Thermostat

Additional Information

Weight 0.03 kg
Dimensions 9 × 3 × 6 cm