SKU: SENS-3663
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KSD9700/BK05-BB1D Metallic Shell Temperature Control Switch - 95°C NC, 10A 250V

₹55.00 (Inclusive of all taxes)
Out of Stock

The KSD9700/BK05-BB1D is a metallic shell temperature control switch (thermostat) with a 95°C normally closed (NC) action, rated for 10A at 250V AC. It provides reliable over-temperature protection for a wide range of electrical appliances, power tools, and heating systems by automatically opening the circuit upon reaching its calibrated setpoint.

Features

  • Metallic shell construction for durability and effective thermal conduction.
  • Normally Closed (NC) contact opens at 95°C (±5°C typical) to cut power.
  • High current rating: 10A at 250V AC for robust circuit protection.
  • Compact design with integrated 7cm lead wires for easy installation.
  • Bimetallic snap-action disc ensures reliable, repeatable switching.

Out of stock

Description

The KSD9700/BK05-BB1D is a bimetallic disc-type thermostat housed in a metallic shell, designed to function as an automatic thermal cut-off switch. When the ambient temperature around its shell reaches the calibrated setpoint of 95°C, the bimetallic element snaps, mechanically opening the normally closed (NC) contacts to interrupt the current flow. This action protects motors, transformers, heaters, and other components from damage due to overheating.

Its metallic housing ensures fast thermal response and robust physical protection. The switch is pre-wired with 7cm insulated leads, simplifying integration into existing wiring. After the temperature drops below the reset point (typically 15-25°C below the trip point), the contacts automatically re-close, restoring circuit operation without manual intervention.

Key Features

  • Bimetallic Snap-Disc Mechanism: Provides precise and reliable trip action with positive contact separation.
  • Robust Metallic Enclosure: Offers excellent thermal conductivity for accurate sensing and high mechanical strength.
  • Automatically Resetting: Eliminates the need for manual reset after a thermal event, enabling continuous protection.
  • High Electrical Rating: Handles up to 10A at 250V AC, suitable for protecting mains-powered equipment.
  • Compact and Sealed Design: The sealed shell helps protect internal contacts from dust and contaminants.
  • Pre-Wired for Convenience: Includes 7cm insulated lead wires terminated for direct solder or screw terminal connection.

Applications

  • Over-temperature protection in AC motors, transformers, and solenoids.
  • Safety cut-off in household appliances like coffee makers, rice cookers, and electric kettles.
  • Thermal management in power tools, battery chargers, and power supplies.
  • Heating element protection in space heaters, soldering irons, and industrial heating equipment.
  • Temperature monitoring in automotive electronics and engine compartments.

Technical Specifications

Manufacturer Part NumberKSD9700/BK05-BB1D
Switch TypeTemperature Control (Thermostat)
Contact ActionNormally Closed (NC)
Trip Temperature95°C
Rated Voltage250V AC
Rated Current10A
Housing MaterialMetallic Shell
Cable Length7 cm
Head Dimensions (approx.)2.0 x 0.8 x 0.2 cm
Operating PrincipleBimetallic Snap Disc
Reset TypeAutomatic (upon cooling)

Frequently Asked Questions

What does 'Normally Closed (NC)' mean for this thermostat?

Normally Closed (NC) means the electrical contacts inside the switch are closed, allowing current to flow, at temperatures below its setpoint (95°C). When the temperature rises to 95°C, the bimetallic disc snaps and opens the contacts, breaking the circuit to stop current flow and protect the connected device. It automatically resets and closes the contacts once the temperature cools down sufficiently.

What is the voltage and current rating of the KSD9700/BK05-BB1D switch?

This temperature control switch is rated for 10 Amperes (10A) at 250 Volts Alternating Current (250V AC). This rating makes it suitable for protecting mains-powered equipment and appliances. Do not exceed these ratings, as doing so may cause contact welding or failure of the switch.

How do I install and wire this metallic shell thermostat?

Installation involves securing the metallic body of the thermostat directly to the component or surface you need to monitor (e.g., motor housing, heater block) using thermal paste or a mounting clip for optimal heat transfer. Electrically, it is wired in series with the load (e.g., a heating element or motor) using the two pre-attached 7cm lead wires. Ensure the switch's rated current (10A) exceeds the normal operating current of your load.

What is the typical accuracy and reset differential for this switch?

Standard bimetallic thermostats like the KSD9700 series typically have a trip temperature tolerance of ±5°C around the stated setpoint (95°C). The reset differential—the temperature drop required for the contacts to re-close—is usually between 15°C and 25°C. Therefore, after tripping at 95°C, the circuit will remain open until the temperature cools to approximately 70-80°C.

Package Includes

  • 1 x KSD9700/BK05-BB1D Metallic Shell Temperature Control Switch (95°C NC)

Additional Information

Weight 0.03 kg
Dimensions 9 × 7 × 1 cm