SKU: SENS-3561
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Generic KSD301 Ceramics Temperature Controlled Switch Thermostat - 50°C NC, 250V 10A

₹49.00 (Inclusive of all taxes)
Out of Stock

The KSD301 is a ceramic-housed, normally closed (NC) thermal switch designed for precise temperature control at a 50°C set point. It is rated for 250V AC/DC and 10A loads, making it suitable for direct integration into heating elements, appliances, and industrial control panels for over-temperature protection.

Features

  • Ceramic housing for high thermal stability and electrical insulation
  • Normally Closed (NC) contact opens upon reaching 50°C set point
  • High current rating of 10A at 250V AC/DC for direct load switching
  • Compact and robust mechanical thermostat for reliable over-temperature protection
  • Simple two-wire installation for integration into existing control circuits

Out of stock

Description

The KSD301 is a bimetallic disc-type thermostat housed in a durable ceramic body. The internal snap-action mechanism provides a Sharp Microelectronics switching action at the calibrated temperature of 50°C, opening the normally closed circuit to cut power to a connected load. This design ensures reliable operation and long-term stability under repeated thermal cycling.

Its ceramic construction offers excellent dielectric strength and resistance to heat, making it suitable for high-temperature environments near heating elements or motors. The device functions as a purely electromechanical switch, requiring no external power supply, and is ideal for fail-safe thermal cutoff applications in consumer appliances, power supplies, and industrial equipment.

Key Features

  • Fixed 50°C (±5°C typical) actuation temperature for consistent thermal protection
  • Ceramic enclosure ensures high electrical insulation and flame-retardant properties
  • Snap-action bimetallic disc provides positive contact operation and long service life
  • Rated for resistive and inductive loads up to 10A at 250V AC or DC
  • Compact form factor (approx. 9 x 6 x 3 cm) for space-constrained installations
  • Two solder or quick-connect terminals for simple series wiring
  • Designed for surface mounting with integrated mounting holes or adhesive pads
  • High-value build for cost-effective thermal management solutions

Applications

  • Over-temperature protection for electric water heaters, coffee makers, and kettles
  • Thermal cutoff safety switch in power transformers, battery chargers, and AC/DC power supplies
  • Temperature control for incubators, soldering stations, and small heating pads
  • Fail-safe mechanism in motor windings, solenoids, and industrial control cabinets
  • Appliance safety compliance and thermal regulation in consumer electronics

Technical Specifications

Model NumberKSD301
Switch TypeNormally Closed (NC), Opens on Temperature Rise
Actuation Temperature50°C
Rated Voltage250V AC/DC
Rated Current10A
Housing MaterialCeramic
Contact ConfigurationSPST-NC (Single Pole, Single Throw, Normally Closed)
Operating Temperature RangeAmbient to 150°C (max)
Weight3 g

Frequently Asked Questions

What is the switching action of this KSD301 thermostat?

The KSD301 is a Normally Closed (NC) switch. At room temperature, the circuit is closed (conducting). When the sensing surface reaches its calibrated 50°C set point, the internal bimetallic disc snaps open, breaking the circuit to disconnect the load. It resets and closes again once the temperature drops below the set point.

Can this switch handle inductive loads like motors or solenoids?

Yes, the 10A 250V rating is suitable for both resistive (heaters) and inductive (motors, transformers) loads. The snap-action mechanism helps minimize arcing during switching, extending contact life. For highly inductive loads, adding an RC snubber circuit across the contacts is recommended for optimal performance.

How do I install and wire this temperature switch?

Installation is straightforward. Mount the thermostat securely onto or near the heat source using its provided holes or adhesive. Connect the two terminals in series with the load (e.g., heater) and power source. Ensure good thermal contact between the ceramic face and the monitored surface for accurate temperature sensing.

Is the 50°C set point adjustable?

No, the KSD301 model featured here has a fixed, factory-calibrated actuation temperature of 50°C. The set point is not user-adjustable. For different temperature thresholds, you would need to select a different model from the KSD series with the corresponding fixed rating (e.g., KSD301 60°C, 70°C, etc.).

Package Includes

  • 1 x KSD301 Ceramic Temperature Controlled Switch Thermostat

Additional Information

Weight 0.003 kg
Dimensions 9 × 6 × 3 cm