SKU: SENS-3593
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Generic KSD301 80°C NC Temperature Control Switch Thermostat - Bakelite, 250V 10A

₹16.00 (Inclusive of all taxes)
Out of Stock

The KSD301 is a bimetallic, snap-action thermal switch designed for precise temperature control at 80°C. This normally open (NO) thermostat is rated for 250V AC/DC and 10A loads, housed in a durable Bakelite casing for reliable operation in appliances and industrial control systems.

Features

  • Bimetallic snap-action mechanism for precise 80°C (±5°C typical) trip point.
  • Rated for 250V AC/DC and 10A resistive loads, suitable for direct control of heating elements, motors, and solenoids.
  • Durable Bakelite housing provides electrical insulation and thermal stability.
  • Normally Open (NO) contact configuration; closes upon reaching setpoint temperature.
  • Compact and robust design for integration into appliances, HVAC systems, and industrial equipment.

Out of stock

Description

The Generic KSD301 is a bimetallic disc-type thermostat that functions as a temperature-controlled switch. Its operation relies on the differential thermal expansion of two bonded metals, which causes a snap-action at the calibrated setpoint of 80°C. This action closes the normally open (NO) contacts, completing the circuit to activate a connected load such as a fan, heater, or alarm.

Encased in Bakelite, the switch offers excellent electrical insulation and resistance to heat, making it suitable for embedded applications where space is limited and reliability is critical. It is a cost-effective, electromechanical solution for over-temperature protection or basic temperature cycling in devices like coffee makers, water heaters, battery chargers, and power supplies.

Key Features

  • Precise Bimetallic Actuation: Engineered for consistent trip/release at the specified 80°C setpoint with minimal hysteresis.
  • High-Current Switching: Robust contacts handle up to 10A at 250V, enabling direct load control without additional relays in many applications.
  • Durable Insulating Housing: Bakelite construction ensures high dielectric strength and long-term stability under thermal cycling.
  • Compact Mechanical Design: Small form factor allows for easy mounting on heat sinks, enclosures, or within appliance chassis.
  • Normally Open Configuration: Ideal for safety cut-off or activation circuits that require closure upon reaching threshold temperature.
  • Wide Voltage Compatibility: Rated for both AC and DC operation up to 250V, offering flexibility in system design.

Applications

  • Over-temperature protection and thermal cutoff in power supplies, battery packs, and transformers.
  • Temperature cycling control in small appliances such as coffee makers, water kettles, and food warmers.
  • Fan control and cooling system activation in electronic enclosures, AV equipment, and HVAC auxiliary units.
  • Safety interlock and thermal monitoring in industrial heating elements and process control equipment.

Technical Specifications

Model NumberKSD301
Switch TypeTemperature Control Switch (Thermostat)
Contact ConfigurationNormally Open (NO)
Setpoint Temperature80°C
Rated Voltage250V AC/DC
Rated Current10A
Housing MaterialBakelite
Actuation PrincipleBimetallic Snap Disc
Approx. Weight3 g

Frequently Asked Questions

What is the operating principle of the KSD301 thermostat?

The KSD301 uses a bimetallic snap disc mechanism. Two metals with different thermal expansion rates are bonded together. As temperature rises to the calibrated setpoint (80°C), the disc snaps concavely, physically closing the normally open (NO) electrical contacts to complete the circuit. It resets when the temperature drops below the setpoint.

Can this switch control a 120V AC heater directly?

Yes, provided the heater's current draw does not exceed the switch's 10A rating. The KSD301 is rated for 250V AC/DC, making it suitable for direct switching of 120V AC loads like heating elements or fan motors. Always ensure the load's inrush current is within the switch's capability to prevent contact welding.

How should I mount the KSD301 for accurate temperature sensing?

For optimal performance, mount the thermostat's metal sensing disc in direct thermal contact with the heat source or surface you wish to monitor. Use thermal paste or a mounting clip to ensure good heat transfer. The Bakelite body provides insulation, but ensure the mounting area is clean and free from vibration that could affect the snap-action mechanism.

Is the 80°C setpoint fixed or adjustable?

The setpoint is fixed at 80°C and is not user-adjustable. This is a characteristic of bimetallic disc thermostats like the KSD301, which are factory-calibrated for a specific trip temperature. For adjustable control, you would require an electronic thermostat with a potentiometer or digital interface.

Package Includes

  • 1 x KSD301 Temperature Control Switch (80°C, NO, 250V 10A)

Additional Information

Weight 0.02 kg
Dimensions 9 × 6 × 2 cm