SKU: SENS-3528
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Generic KSD302 Ceramic Temperature Control Switch 50°C NC - 250V 10A

₹42.00 (Inclusive of all taxes)
Out of Stock

The KSD302 is a compact, ceramic-encapsulated thermal switch designed for reliable temperature control at a fixed 50°C (122°F) threshold. It features a normally closed (NC) contact configuration and is rated for 250V AC / 10A loads, making it suitable for integration into appliances, power supplies, and thermal protection circuits.

Features

  • Fixed 50°C (122°F) snap-action thermal switch with normally closed (NC) contacts
  • High-voltage/high-current rating of 250V AC / 10A for direct load switching
  • Ceramic body provides excellent electrical insulation and thermal stability
  • Compact, durable design for integration into appliances and thermal management systems
  • Simple two-wire installation for automatic over-temperature protection circuits

Out of stock

Description

The KSD302 is a bimetallic disc-type thermal switch, where a temperature-sensitive metallic element mechanically opens or closes an electrical contact at its calibrated setpoint. The ceramic housing ensures high dielectric strength and isolates the internal mechanism from external electrical noise and environmental factors.

This switch operates on a simple, non-powered principle, making it a fail-safe component for over-temperature protection. Its 250V AC / 10A rating allows it to directly interrupt significant power loads in heating elements, motors, or transformers without requiring an intermediate relay, simplifying system design.

Key Features

  • Fixed Temperature Actuation: Precisely calibrated bimetallic disc triggers at 50°C (± tolerance).
  • High-Power Switching: Rated for 250V AC and 10A current, enabling direct control of mains-powered devices.
  • Ceramic Encapsulation: Provides superior electrical insulation, thermal resistance, and mechanical durability.
  • Normally Closed (NC) Configuration: Contacts are closed at normal temperatures and open upon reaching the setpoint to break the circuit.
  • Fail-Safe Operation: Requires no external power, ensuring protection even during system power failures.
  • Compact & Mountable: Small form factor with mounting holes for secure installation in confined spaces.
  • Long Service Life: Robust construction designed for repeated thermal cycling in demanding applications.

Applications

  • Over-temperature cut-off protection in coffee makers, water heaters, and small kitchen appliances.
  • Thermal safety switch in power supplies, battery chargers, and transformer enclosures.
  • Temperature limiting in electric motors, solenoids, and industrial control cabinets.
  • Simple thermal regulation in incubators, terrariums, or DIY heating projects.
  • Fail-safe protection for heating elements in 3D printer beds or soldering equipment.

Technical Specifications

Model / TypeKSD302 Thermal Switch
Switch ConfigurationNormally Closed (NC)
Setpoint Temperature50°C (122°F)
Rated Voltage250V AC
Rated Current10A
Housing MaterialCeramic
Contact TypeSnap-action, Bimetallic Disc
Terminal TypeScrew / Quick-Connect (Assumed)
Operating PrincipleMechanical, Temperature-Actuated

Frequently Asked Questions

What is the switching configuration of this KSD302 thermostat?

This unit is configured as Normally Closed (NC). This means the electrical contacts are closed at temperatures below its 50°C setpoint, allowing current to flow. When the surrounding temperature reaches or exceeds 50°C, the internal bimetallic disc snaps and opens the contacts, breaking the circuit to provide over-temperature protection.

Can this switch handle mains voltage directly?

Yes, the KSD302 is rated for 250 Volts AC and a current of 10 Amperes. This rating allows it to be wired directly in series with the live (hot) wire of a mains-powered load, such as a heating element or motor, without requiring an additional relay. Always ensure wiring complies with local electrical codes for safety.

How do I install and use this thermal switch?

Installation is straightforward. The switch has two terminals. Wire it in series with the load you wish to protect (e.g., a heater) and the power source. Mount the switch's ceramic body directly onto or in close thermal contact with the component or area you need to monitor. Ensure good thermal coupling for accurate temperature sensing. The switch operates automatically with no external power or configuration needed.

Package Includes

  • 1 x KSD302 Ceramic Temperature Control Switch (50°C NC, 250V 10A)

Additional Information

Weight 0.005 kg
Dimensions 12 × 9 × 2 cm