Generic KSD301 100°C Normally Closed NC Temperature Control Switch Thermostat - Bakelite, 250V 10A
SKU: SENS-3616
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Generic KSD301 100°C Normally Closed NC Temperature Control Switch Thermostat - Bakelite, 250V 10A

₹67.00 (Inclusive of all taxes)
Out of Stock

The KSD301 is a 100°C normally closed (NC) snap-action thermostat switch housed in a durable Bakelite case. Designed for direct temperature control in appliances and industrial equipment, it operates at up to 250V AC and 10A, providing a reliable, non-electronic cut-off for heating systems.

Features

  • 100°C (212°F) fixed snap-action temperature switch.
  • Normally Closed (NC) contact configuration opens on temperature rise.
  • Rated for 250V AC / 10A resistive load.
  • Durable Bakelite housing for electrical insulation and thermal stability.
  • Compact, screw-terminal design for easy integration into control circuits.

Out of stock

Description

The KSD301 is a bimetallic, snap-action thermostat designed for over-temperature protection and basic temperature control. It operates on a simple mechanical principle: a bimetallic disc deflects at its calibrated set point (100°C), physically opening the normally closed electrical contacts to break the circuit. This provides a failsafe, non-powered method of interrupting power to a heating element or other device.

Housed in a Bakelite shell, the switch offers excellent electrical insulation and resistance to moderate heat. Its fixed temperature setting makes it ideal for applications requiring a specific, non-adjustable thermal cut-off. The robust 10A, 250V AC rating ensures compatibility with a wide range of mains-powered appliances and industrial equipment.

Key Features

  • Fixed 100°C (212°F) actuation temperature for consistent performance.
  • Bimetallic snap-disc mechanism ensures quick, positive contact action.
  • Bakelite housing provides high dielectric strength and thermal resistance.
  • Normally Closed (NC) configuration is ideal for series-connected safety cut-off.
  • High current capacity supports direct control of heating elements up to 10A.
  • Compact and lightweight design for space-constrained installations.
  • Screw terminals allow for secure, reliable wire connections.

Applications

  • Over-temperature protection in electric water heaters, kettles, and coffee makers.
  • Temperature safety cut-off in HVAC equipment, fan heaters, and space heaters.
  • Thermal protection for transformers, power supplies, and motor windings.
  • Basic temperature control in industrial process equipment and incubators.
  • Appliance safety compliance and thermal management in consumer electronics.

Technical Specifications

Model NumberKSD301
Switch TypeTemperature Actuated (Thermostat)
Contact ConfigurationNormally Closed (NC)
Actuation Temperature100 °C
Rated Voltage250V AC
Rated Current10A (Resistive)
Housing MaterialBakelite
Terminal TypeScrew
Item Weight (approx.)3 g

Frequently Asked Questions

What is the function of the Normally Closed (NC) contact in this KSD301 thermostat?

The Normally Closed (NC) contacts are connected internally when the device is below its 100°C set point, allowing current to flow through the circuit. When the ambient temperature reaches 100°C, the internal bimetallic disc snaps, physically opening the contacts to break the circuit, which is typically used to shut off a heating element for safety or basic control.

Can I use this KSD301 switch to control a DC load or higher current?

The switch is rated for 250V AC, 10A resistive load. Using it for DC loads or inductive loads (like motors) may require derating and can cause premature contact wear due to arcing. For DC or higher currents, consult the manufacturer's datasheet for specific DC ratings or use an appropriate relay.

How do I install and wire this temperature control switch?

Install the switch in direct thermal contact with the surface or medium you wish to monitor (e.g., heater tank). Connect the two screw terminals in series with the load (e.g., heating element) and the power source. Ensure wiring complies with local electrical codes for the voltage and current involved.

Is the 100°C set point adjustable on this model?

No, the KSD301 features a fixed, factory-calibrated actuation temperature of 100°C. It is not user-adjustable. For adjustable set points, you would need a different model of thermostat or an electronic temperature controller.

Package Includes

  • 1 x KSD301 Temperature Control Switch (Bakelite, 100°C NC)

Additional Information

Weight 0.02 kg
Dimensions 9 × 6 × 2 cm

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