SKU: SENS-3609
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Generic KSD301 120°C NC Temperature Control Switch - Bakelite Housing, 250V 10A

₹12.00 (Inclusive of all taxes)
Out of Stock

The Generic KSD301 is a bimetallic snap-action thermostat switch rated for 250V AC and 10A loads, featuring a normally open (NO) contact configuration and a fixed 120°C (248°F) trip point. Its robust Bakelite housing provides electrical insulation and thermal stability for integration into heating elements, appliances, and industrial control panels.

Features

  • Fixed 120°C (248°F) snap-action bimetallic trip point
  • Normally Open (NO) contact configuration, closes on temperature rise
  • High-current rating: 10A at 250V AC for direct load switching
  • Durable, flame-retardant Bakelite (phenolic) housing
  • Compact, screw-terminal design for easy panel or surface mounting

Out of stock

Description

The KSD301 is a bimetallic disc thermostat, a reliable electromechanical device that opens or closes an electrical circuit at a specific calibrated temperature. The bimetallic element deflects with heat, causing a snap-action mechanism to instantly change the state of the electrical contacts. This design ensures a clean, bounce-free switch action, enhancing contact life and reliability under repetitive cycling.

Encased in Bakelite, a classic thermosetting plastic known for excellent electrical insulation and heat resistance, this switch is suited for embedded applications within appliances, power supplies, and heating equipment where a simple, fixed-temperature cut-off or control point is required. It operates without external power, making it a fail-safe component for over-temperature protection.

Key Features

  • Bimetallic snap-action mechanism for precise, repeatable switching at 120°C
  • High electrical rating: 10A resistive load at 250V AC for direct control
  • Flame-retardant Bakelite housing ensures safety and durability
  • Normally Open (NO) contacts close upon reaching trip temperature
  • Robust screw terminals for secure, reliable wire connections
  • Compact form factor designed for easy integration into enclosures
  • No external power required; purely mechanical temperature response
  • Long operational life due to simple, proven electromechanical design

Applications

  • Over-temperature protection in coffee makers, kettles, and small kitchen appliances
  • Temperature control and safety cut-off in soldering irons and heating tools
  • Thermal regulation within power supplies, transformers, and battery chargers
  • Safety interlock in industrial equipment control panels and motor starters
  • Backup thermal cutoff in water heaters and space heating elements

Technical Specifications

Model NumberKSD301
Switch TypeBimetallic Thermostat (Temperature Control Switch)
Contact ConfigurationNormally Open (NO)
Set Point / Trip Temperature120 °C (248 °F)
Rated Voltage250 V AC
Rated Current10 A (Resistive)
Housing MaterialBakelite (Phenolic)
Contact MaterialSilver Alloy
Terminal TypeScrew Terminals
Approximate Weight3 g

Frequently Asked Questions

What is the switching action of this KSD301 thermostat?

This KSD301 model is configured as Normally Open (NO). The electrical contacts are open at room temperature and will physically close (completing the circuit) once the internal bimetallic disc heats up and snaps at its calibrated 120°C (248°F) trip point. It re-opens upon cooling below the reset temperature.

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

Yes. With a rating of 10A at 250V AC, it can directly switch loads up to 10A at 120V AC. This is suitable for many heating elements, motors, or solenoids within its current rating. Always ensure your load's inrush and steady-state current do not exceed 10A.

How do I mount and wire the KSD301 thermostat?

Mount the switch via its mounting holes, ensuring good thermal contact with the surface or medium you wish to monitor. Connect your load and power source wires to the two screw terminals. There is no polarity. The switch is in series with the load; when it closes at 120°C, power flows to the load.

Is the 120°C set point adjustable?

No. The KSD301 is a fixed-set-point bimetallic thermostat. The 120°C trip temperature is factory-calibrated and cannot be adjusted by the user. For adjustable temperature control, you would need a separate electronic thermostat module.

Package Includes

  • 1 x KSD301 Temperature Control Switch (120°C, NO, 250V 10A)

Additional Information

Weight 0.02 kg
Dimensions 9 × 6 × 2 cm