SKU: SENS-3615
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KSD301 100°C Normally Open NC Temperature Control Switch Thermostat - Bakelite, 250V 10A

₹11.00 (Inclusive of all taxes)
Out of Stock

The KSD301 is a bimetallic snap-action thermostat switch rated for 250V AC and 10A, featuring a normally open (NO) contact configuration that closes at its 100°C setpoint. This Bakelite-housed device provides reliable, fixed-temperature control for heating elements, appliances, and protection circuits.

Features

  • Bimetallic snap-action thermostat with fixed 100°C (±5°C) trip point.
  • Rated for 10A at 250V AC, suitable for direct control of heating loads.
  • Normally Open (NO) contact configuration; closes on temperature rise.
  • Durable Bakelite housing offering electrical insulation and thermal stability.
  • Compact and simple two-wire installation for over-temperature protection.

Out of stock

Description

The KSD301 thermostat utilizes a bimetallic disc sensing element that mechanically snaps at its calibrated temperature, providing a reliable and hysteresis-based switching action. This design ensures a Sharp Microelectronics electrical make/break for direct control or safety cutoff without requiring external power.

Encased in a Bakelite shell, the switch offers excellent electrical insulation and resistance to heat creep, making it suitable for integration into appliances, power tools, and industrial equipment where a fixed over-temperature cut-off is required. Its simple two-terminal design allows for straightforward series connection with the load.

Key Features

  • Fixed Temperature Actuation: Pre-calibrated to switch at 100°C with typical factory tolerance.
  • Robust Switching Capacity: Handles up to 10A resistive load at 250V AC for direct appliance control.
  • Mechanical Snap Action: Bimetallic disc ensures quick, positive contact operation with clear hysteresis.
  • Insulated Bakelite Housing: Provides high dielectric strength and thermal resistance for safe operation.
  • Normally Open Configuration: Contacts remain open under normal conditions, closing upon reaching setpoint.
  • Compact & Lightweight: Minimal footprint and low mass for easy integration into assemblies.

Applications

  • Over-temperature protection in electric kettles, coffee makers, and small appliances.
  • Temperature control in soldering irons, glue guns, and low-power heating elements.
  • Safety cutoff in power tools, transformers, and battery chargers.
  • Thermal regulation in incubators, terrariums, and simple environmental chambers.

Technical Specifications

Model NumberKSD301
Switch TypeBimetallic Thermostat
Contact ConfigurationNormally Open (NO)
Setpoint Temperature100°C
Rated Voltage250V AC
Rated Current10A
Housing MaterialBakelite
Terminal TypeQuick-Connect / Blade
Approximate Weight3 g

Frequently Asked Questions

What is the switching action and contact configuration of the KSD301?

The KSD301 is a Normally Open (NO) switch. Its contacts are open at room temperature and will physically close (making the circuit) when the sensing disc reaches its calibrated trip temperature of approximately 100°C. It uses a bimetallic snap-action mechanism for a positive, quick make/break.

What is the maximum electrical load this thermostat can handle directly?

This thermostat is rated for a maximum of 10 Amps at 250 Volts AC. This rating is typically for resistive loads like heating elements. For inductive loads (motors, solenoids), derating or use with a relay is recommended to prevent contact arcing and premature wear.

How do I install and wire this temperature switch?

Installation is straightforward. The switch has two blade terminals. Wire it in series with the load (e.g., heater) and the power source. Ensure the switch's metal sensing disc is in good thermal contact with the surface or environment you wish to monitor. The Bakelite body provides insulation, but standard electrical safety practices should be followed.

Package Includes

  • 1 x KSD301 Temperature Control Switch Thermostat

Additional Information

Weight 0.02 kg
Dimensions 9 × 6 × 2 cm