SKU: SENS-3571
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Generic KSD302 Ceramic Temperature Control Switch - 120°C NC Thermostat, 250V 10A

₹11.00 (Inclusive of all taxes)
Out of Stock

The KSD302 is a ceramic-housed, normally closed (NC) thermal switch designed for reliable temperature control up to 120°C. It is rated for 250V AC/DC and 10A loads, making it suitable for direct integration into heating elements, appliances, and power control circuits.

Features

  • Ceramic housing for high thermal stability and electrical insulation.
  • Normally Closed (NC) contact opens upon reaching the 120°C setpoint.
  • Rated for 250V and 10A, suitable for direct control of heating loads.
  • Compact and robust mechanical snap-action design.
  • Ideal for over-temperature protection and basic thermal regulation.

Out of stock

Description

The KSD302 is a bimetallic disc thermostat, where a temperature-sensitive metal disc snaps to reverse its curvature at a precise calibration point (120°C), mechanically opening the electrical contacts. This simple, reliable mechanism requires no external power, making it a fail-safe solution for over-temperature protection.

Housed in a durable ceramic body, the switch offers excellent electrical isolation and thermal conductivity. The normally closed configuration ensures the controlled circuit remains live until the temperature threshold is exceeded, after which it breaks the connection to prevent damage or hazardous conditions.

Key Features

  • Bimetallic snap-action mechanism for precise and repeatable switching at 120°C.
  • Ceramic enclosure provides high dielectric strength and thermal endurance.
  • Rugged construction suitable for demanding environments in appliances and industrial equipment.
  • SPST Normally Closed (NC) contact configuration.
  • Direct high-current switching capability eliminates the need for secondary relays in many applications.
  • Compact form factor for easy integration into confined spaces.

Applications

  • Over-temperature safety cutoff in electric water heaters, coffee makers, and kettles.
  • Temperature regulation in soldering irons, 3D printer heated beds, and laboratory equipment.
  • Thermal protection for power supplies, transformers, and motor windings.
  • Appliance control in HVAC fan units, hair dryers, and space heaters.

Technical Specifications

Model NumberKSD302
Switch TypeThermostat (Bimetallic)
Contact ConfigurationSPST, Normally Closed (NC)
Setpoint Temperature120 °C
Rated Voltage250V AC/DC
Rated Current10A
Housing MaterialCeramic
Operating Temperature RangeUp to 120°C (Setpoint)
Approximate Weight3 g

Frequently Asked Questions

What does Normally Closed (NC) mean for this thermostat?

In a Normally Closed (NC) configuration, the electrical contacts are closed, allowing current to flow, at temperatures below the setpoint (120°C). When the temperature rises to 120°C, the internal bimetallic disc snaps, mechanically opening the contacts to break the circuit, providing over-temperature protection.

Can I use this KSD302 switch with both AC and DC power?

Yes, the switch is rated for 250V AC/DC and 10A. It can be used in both alternating current (AC) and direct current (DC) circuits, provided the voltage and current do not exceed these specified limits to ensure proper operation and contact longevity.

How do I install and wire this temperature control switch?

Install the switch in direct thermal contact with the surface or environment you wish to monitor. Wire it in series with the load (e.g., heating element) you want to control. The switch acts as a thermal fuse; when its body reaches 120°C, it will open the circuit to stop power flow to the load.

Package Includes

  • 1 x KSD302 Ceramic Temperature Control Switch (120°C NC, 250V 10A)

Additional Information

Weight 0.03 kg
Dimensions 9 × 3 × 6 cm