SKU: SENS-3581
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Generic KSD301 Ceramic Temperature Controlled Switch Thermostat - Normally Closed NC, 60°C, 250V 16A

₹70.00 (Inclusive of all taxes)
Out of Stock

The KSD301 is a ceramic-housed, normally closed (NC) thermal switch designed for precise temperature control up to 60°C in AC circuits. It provides reliable, snap-action switching for 250V, 16A loads, making it suitable for integration into appliances, power supplies, and thermal protection systems.

Features

  • Ceramic housing for high thermal conductivity and electrical insulation
  • Normally Closed (NC) snap-action switch opens at the rated 60°C setpoint
  • Rated for 250V AC / 16A, suitable for direct mains-level control
  • Compact and durable mechanical thermostat design
  • Ideal for over-temperature protection and basic temperature regulation

Out of stock

Description

The KSD301 is a bimetallic disc thermostat housed in a robust ceramic package. When the ambient temperature reaches its calibrated setpoint of 60°C, the bimetallic element snaps, mechanically opening the normally closed contacts to break the circuit. This provides a failsafe, non-resettable cut-off for heating elements, transformers, or other components requiring thermal protection.

Its ceramic construction ensures excellent heat transfer for accurate sensing and provides high dielectric strength for safe operation at the rated 250V AC. The device is a purely electromechanical solution, requiring no external power, making it highly reliable for safety-critical applications where electronic control may be unsuitable.

Key Features

  • Ceramic body for optimal thermal response and electrical safety
  • Mechanical snap-action bimetallic thermostat for precise trip point
  • High-current switching capability (16A @ 250V AC)
  • Normally Closed (NC) contact configuration for fail-safe open operation
  • Fixed temperature setpoint of 60°C (±5°C typical)
  • Compact form factor for easy integration into enclosures and assemblies
  • Durable construction suitable for appliance and industrial environments
  • No external power or signal conditioning required for operation

Applications

  • Over-temperature protection in coffee makers, kettles, and small kitchen appliances
  • Thermal cut-off safety for power supplies, battery chargers, and transformers
  • Temperature regulation in incubators, terrariums, or simple heating systems
  • Safety interlock in motor drives and industrial control cabinets
  • Resettable fuse replacement in AC-powered electronic equipment

Technical Specifications

Model NumberKSD301
Switch TypeTemperature Controlled (Thermostat)
Contact ConfigurationNormally Closed (NC)
Setpoint (Trip) Temperature60 °C
Rated Voltage250 V AC
Rated Current16 A
Housing MaterialCeramic
Operating PrincipleBimetallic Snap Disc
Approximate Weight3 g

Frequently Asked Questions

What is the function of the Normally Closed (NC) contact in this KSD301 thermostat?

The Normally Closed (NC) contacts are closed at temperatures below the 60°C setpoint, allowing current to flow. When the sensed temperature reaches or exceeds 60°C, the internal bimetallic disc snaps open, mechanically breaking the circuit to stop current flow. This provides a fail-safe, automatic cut-off for over-temperature protection.

Can this thermostat switch DC loads, or is it only for AC?

While the primary rating is for 250V AC, bimetallic thermostats can often switch DC loads, but the arc suppression characteristics differ. For DC use, it is recommended to derate the current and voltage significantly (e.g., 50% or more) and consult the manufacturer's datasheet. For reliable performance, it is best used within its specified AC rating.

How do I install and wire this temperature control switch?

Mount the thermostat securely, ensuring good thermal contact with the surface or medium you wish to monitor. Connect the two terminals in series with the load (e.g., a heating element) and the power source. There is no polarity. The switch will automatically reset and close the circuit once the temperature cools sufficiently below the 60°C trip point.

Is the 60°C setpoint fixed, or can it be adjusted?

The KSD301 has a fixed, factory-calibrated setpoint of 60°C. It is not user-adjustable. If a different trip temperature is required, you must select a thermostat model with the corresponding fixed rating (common ratings include 70°C, 80°C, 90°C, etc.).

Package Includes

  • 1 x KSD301 Ceramic Temperature Control Switch (60°C, NC, 250V 16A)

Additional Information

Weight 0.03 kg
Dimensions 9 × 6 × 3 cm