Generic KSD301 105°C Normally Open NC Temperature Control Switch Thermostat - Bakelite, 250V 10A
SKU: SENS-3613
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Generic KSD301 105°C Normally Open NC Temperature Control Switch Thermostat - Bakelite, 250V 10A

₹12.00 (Inclusive of all taxes)
Out of Stock

The Generic KSD301 is a bimetallic snap-action thermostat providing reliable temperature control up to 105°C. This normally open (NC) switch is rated for 250V/10A loads, making it suitable for direct integration into heating elements, appliances, and industrial control circuits without requiring an external power supply.

Features

  • Bimetallic snap-action thermostat with a fixed 105°C (221°F) trip point.
  • Normally Open (NO) contact configuration; closes on temperature rise.
  • High-current rating: 10A at 250V AC for direct load switching.
  • Durable Bakelite housing offering electrical insulation and thermal stability.
  • Compact and self-contained design for easy installation in appliances and control panels.

Out of stock

Description

The KSD301 is a mechanical, fixed-temperature thermostat utilizing a bimetallic disc as its sensing element. As the ambient temperature reaches its calibrated set point (105°C), the disc snaps, physically closing the electrical contacts to complete a circuit. This simple, robust design requires no external power, making it ideal for fail-safe over-temperature protection or basic on/off control in heating systems.

Encased in a Bakelite shell, the switch provides excellent electrical insulation and resistance to heat deformation. Its high 10A switching capacity allows it to control heating elements, motors, or solenoids directly, eliminating the need for an intermediate relay in many applications. The device is designed for surface mounting, typically sensing the temperature of the metal surface or enclosure to which it is attached.

Key Features

  • Fixed Calibration: Precisely calibrated bimetallic disc triggers at 105°C (±5°C typical tolerance).
  • High Load Capacity: Directly switches up to 10A at 250V AC, suitable for resistive and inductive loads.
  • Robust Construction: Bakelite housing ensures electrical safety, heat resistance, and mechanical durability.
  • Mechanical Reliability: Snap-action mechanism provides a clean, audible switching action with positive contact.
  • Simple Integration: Two-terminal design for straightforward series wiring into the load circuit.
  • Maintenance-Free Operation: No moving parts aside from the bimetallic disc, ensuring long service life.

Applications

  • Over-temperature protection in electric water heaters, coffee makers, and rice cookers.
  • Temperature regulation in incubators, soldering irons, and small space heaters.
  • Thermal cutoff safety switch in power supplies, transformers, and battery chargers.
  • Simple on/off control for heating elements in industrial process equipment.
  • Appliance safety compliance for UL/CE standards requiring a fixed thermal cutoff.

Technical Specifications

Model NumberKSD301
Switch TypeNormally Open (NO), Temperature-Actuated
Set Point (Trip Temperature)105 °C
Contact Rating10A @ 250V AC
Rated Voltage250V
Housing MaterialBakelite
Contact ConfigurationSPST (Single-Pole, Single-Throw)
Approx. Weight3 g

Frequently Asked Questions

What is the switching logic of this KSD301 thermostat?

This KSD301 model is a Normally Open (NO) switch. The contacts are open at temperatures below its 105°C set point. When the sensed temperature rises to 105°C, the internal bimetallic disc snaps and physically closes the contacts, completing the circuit. It resets to open once the temperature cools sufficiently below the trip point.

Can this switch be used to directly control a 120V AC heating element?

Yes, it can directly switch 120V AC loads. Its rating is 10A at 250V AC, meaning it has ample capacity for typical 120V heating elements as long as the current does not exceed 10A. Always ensure your load's current draw is within this limit for safe and reliable operation.

How do I install and mount this temperature switch?

Mount the thermostat firmly against the surface whose temperature you need to monitor (e.g., a heater tank wall or motor housing) using its mounting bracket or adhesive. Ensure good thermal contact. Wire the two terminals in series with the load (e.g., the heating element) and the power source. The switch does not require its own power supply.

Package Includes

  • 1 x KSD301 Temperature Control Switch (Bakelite, 105°C, NO, 250V 10A)

Additional Information

Weight 0.02 kg
Dimensions 6 × 9 × 2 cm

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