SKU: SENS-3555
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Generic KSD302 Ceramic Temperature Controlled Switch Thermostat - Normally Closed NC, 80°C, 250V 10A

₹20.00 (Inclusive of all taxes)
Out of Stock

The KSD302 is a ceramic-housed, normally closed (NC) thermal switch designed for precise 80°C temperature control in electrical circuits. It is rated for 250V AC/DC and 10A loads, providing a reliable, mechanical cut-off for temperature-sensitive systems.

Features

  • Ceramic-housed thermal switch with a fixed 80°C actuation point.
  • Normally Closed (NC) contact configuration opens on temperature rise.
  • Rated for 250V AC/DC and 10A switching capacity.
  • Compact and durable construction for integration into appliances and control panels.
  • Provides a simple, non-electronic over-temperature protection solution.

Out of stock

Description

The KSD302 is a bimetallic, snap-action thermal switch enclosed in a robust ceramic housing. It operates on a simple mechanical principle: a bimetallic disc deflects at its calibrated temperature (80°C), physically opening the normally closed electrical contacts to break the circuit. This provides fail-safe over-temperature protection without requiring external power or complex electronics.

Its ceramic body offers excellent electrical insulation and thermal stability, making it suitable for high-temperature environments and applications where electrical isolation is critical. The switch resets automatically once the temperature falls below its set point, restoring the circuit connection.

Key Features

  • Fixed 80°C (±5°C typical) actuation temperature for consistent performance.
  • Ceramic housing ensures high dielectric strength and flame resistance.
  • Normally Closed (NC) contact design for fail-safe circuit interruption.
  • High current capacity of 10A at 250V AC/DC for direct load control.
  • Robust bimetallic snap-action mechanism for reliable, long-life operation.
  • Compact form factor (approx. 9 x 6 x 3 cm) for easy panel or surface mounting.
  • Wide operating temperature range suitable for appliance and industrial enclosures.

Applications

  • Over-temperature protection in coffee makers, kettles, and small kitchen appliances.
  • Thermal cut-off safety in power supplies, battery chargers, and transformer enclosures.
  • Temperature control in incubators, terrariums, and simple environmental chambers.
  • Heating element protection in soldering irons, 3D printer hotends, and lab equipment.
  • Motor and winding temperature monitoring in fans, pumps, and small industrial gear.

Technical Specifications

Model NumberKSD302
Item TypeThermal Switch / Thermostat
Contact ConfigurationNormally Closed (NC)
Actuation Temperature80°C
Rated Voltage250V AC/DC
Rated Current10A
Housing MaterialCeramic
Approx. Weight3 g
Approx. Dimensions (L x W x H)9 x 6 x 3 cm

Frequently Asked Questions

What is the switching logic of this KSD302 thermostat?

This unit is a Normally Closed (NC) switch. The electrical contacts are closed at temperatures below 80°C, allowing current to flow. When the sensing temperature reaches 80°C, the internal bimetallic disc snaps, physically opening the contacts to break the circuit, providing over-temperature protection.

What is the maximum electrical load I can control with this switch?

The KSD302 is rated for a maximum of 10 Amps at 250 Volts AC or DC. This rating allows it to directly switch significant resistive loads, such as heating elements or motors, without requiring an additional relay in many applications. Always ensure your operating voltage and current do not exceed these limits.

How do I mount and wire the KSD302 thermal switch?

The switch can be mounted via its mounting holes or secured with thermal adhesive to the surface whose temperature you need to monitor. Electrically, it is wired in series with the load you wish to control. The two terminals are not polarized; either can be used for line or load connection in a Normally Closed configuration.

Does this thermostat require calibration or external power?

No, the KSD302 is a purely mechanical, bimetallic device. It requires no external power supply, calibration, or signal conditioning. Its actuation temperature is factory-set to 80°C and is not user-adjustable. It operates independently by physically opening or closing based on the temperature at its sensing point.

Package Includes

  • 1 x KSD302 Ceramic Temperature Controlled Switch Thermostat (80°C NC, 250V 10A)

Additional Information

Weight 0.03 kg
Dimensions 9 × 6 × 3 cm