SKU: SENS-3552
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Generic KSD302 Ceramic Temperature Controlled Switch Thermostat - 90°C NC, 250V 10A

₹29.00 (Inclusive of all taxes)
Out of Stock

The KSD302 is a normally-open (NC) ceramic-bodied thermal switch designed for precise temperature control at a 90°C set point, rated for 250V AC/DC and 10A loads. It provides a reliable, hardwired safety cut-off for temperature-sensitive systems, compatible with industrial controls, appliances, and power circuits.

Features

  • Ceramic housing for high electrical insulation and thermal stability
  • Normally Open (NO) contact configuration switches at 90°C (±5°C typical)
  • Rated for 250V AC/DC and 10A resistive/inductive loads
  • Bimetallic snap-action mechanism for reliable, repeatable switching
  • Compact, screw-terminal design for easy integration into control panels and enclosures

Out of stock

Description

The KSD302 is a bimetallic disc-type thermostat housed in a high-grade ceramic body, providing excellent electrical isolation and resistance to arcing. The snap-action mechanism ensures a crisp, reliable switch at the calibrated temperature point (90°C), making it suitable for overtemperature protection in transformers, motors, heaters, and power supplies.

Its normally-open (NO) configuration means the circuit remains open under normal conditions and closes upon reaching the set temperature, ideal for activating alarms, fans, or shutdown circuits. The ceramic construction offers durability against thermal cycling and high-voltage environments, supporting both AC and DC applications up to 250V.

Key Features

  • High-grade ceramic housing for superior dielectric strength and heat resistance
  • Precision bimetallic snap-disc actuator for accurate 90°C trip point
  • Rugged screw terminals for secure, high-current wire connections
  • Wide voltage rating (250V AC/DC) suitable for global power standards
  • 10A switching capacity for direct control of fans, heaters, and solenoids
  • Compact, panel-mount design with integrated mounting bracket
  • Normally Open (NO) contact logic for fail-safe overtemperature protection circuits

Applications

  • Overtemperature protection in power supplies, transformers, and motor windings
  • Thermal cut-off safety switch in coffee makers, soldering irons, and heating appliances
  • Temperature-activated fan control in electronics enclosures and AV racks
  • Fail-safe circuit interruption in battery chargers and DC power systems
  • Industrial control panel thermal management and alarm triggering

Technical Specifications

Model NumberKSD302
Housing MaterialCeramic
Contact ConfigurationNormally Open (NO)
Set Point (Trip) Temperature90°C
Rated Voltage250V AC/DC
Rated Current10A
Switch TypeBimetallic Snap-Disc
Terminal TypeScrew Terminals
Operating Temperature RangeAmbient to 150°C (max)
Approximate Weight3 g

Frequently Asked Questions

What is the exact switching temperature of the KSD302 thermostat?

The KSD302 is calibrated to switch at 90°C. This is the point where the bimetallic disc snaps, closing the normally-open (NO) contacts. Tolerance is typically ±5°C, so actual trip may occur between 85°C and 95°C depending on mounting and airflow.

Can this thermostat switch both AC and DC loads?

Yes, the KSD302 is rated for 250V AC/DC and can handle resistive or inductive loads up to 10A. Ensure wiring complies with local electrical codes and the load does not exceed the 10A current rating to prevent contact welding or failure.

How do I mount and wire the KSD302 thermal switch?

Mount the ceramic body securely to the heat source using its integrated bracket for optimal thermal transfer. Connect your load and power source to the two screw terminals. The switch is Normally Open, so the circuit will be open below 90°C and closed when the set temperature is reached.

Package Includes

  • 1 x KSD302 Ceramic Temperature Controlled Switch Thermostat

Additional Information

Weight 0.03 kg
Dimensions 9 × 6 × 3 cm