SKU: SENS-3679
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KSD9700/BK05-BB1D Metallic Shell Temperature Control Switch 145C NC - 10A 250V

₹20.00 (Inclusive of all taxes)
Out of Stock

The KSD9700/BK05-BB1D is a metallic-shell, snap-action thermal switch rated for 10A at 250V AC/DC, with a fixed 145°C normally closed (NC) set point. It provides reliable over-temperature protection for motors, transformers, and power supplies by opening the circuit upon reaching its calibrated temperature.

Features

  • Fixed 145°C normally closed (NC) snap-action thermal switch.
  • High current rating of 10A at 250V AC/DC for robust circuit protection.
  • Durable metallic shell construction for mechanical strength and thermal conductivity.
  • Pre-calibrated, non-adjustable set point for consistent, maintenance-free operation.
  • Compact design with integrated 7cm lead wires for easy installation.

Out of stock

Description

The KSD9700/BK05-BB1D is a bimetallic disc-type thermal switch designed for automatic over-temperature protection. When the ambient temperature reaches its factory-calibrated 145°C set point, the internal bimetallic disc snaps, mechanically opening the normally closed contacts to interrupt power to the protected circuit. This action prevents damage to sensitive components from excessive heat.

Housed in a robust metallic shell, the switch offers excellent thermal response and durability in demanding environments. The 7cm insulated lead wires facilitate straightforward wiring into control panels, motor windings, or power supply units. Its fixed, non-resettable design ensures a fail-safe thermal cutoff, requiring manual replacement after activation.

Key Features

  • Bimetallic Snap-Action Mechanism: Provides fast, reliable contact opening at the precise 145°C temperature threshold.
  • High-Current Capacity: Rated for 10A continuous current at 250V AC/DC, suitable for protecting substantial loads.
  • Robust Metallic Housing: Ensures mechanical integrity and efficient heat transfer from the protected device to the sensing element.
  • Normally Closed (NC) Configuration: Circuit is closed under normal conditions and opens upon over-temperature, acting as a safety cut-off.
  • Pre-Calibrated & Sealed: Factory-set temperature point guarantees accuracy and eliminates the need for field calibration.
  • Compact Form Factor: Small dimensions allow for installation in space-constrained applications near heat sources.

Applications

  • Over-temperature protection for AC/DC motors, transformers, and solenoids.
  • Thermal cutoff safety device in power supplies, battery chargers, and inverters.
  • Heating element protection in appliances like coffee makers, soldering irons, and hot plates.
  • Industrial equipment thermal monitoring and shutdown in control cabinets and machinery.

Technical Specifications

Manufacturer Part NumberKSD9700/BK05-BB1D
Item TypeThermal Switch / Thermostat
Contact ConfigurationNormally Closed (NC)
Set Point Temperature145 °C
Rated Voltage250 V AC/DC
Rated Current10 A
Cable Length7 cm
Head Dimensions (approx.)2 x 0.8 x 0.2 mm (sensing tip)
Housing MaterialMetallic Shell

Frequently Asked Questions

What is the operating principle and reset behavior of this KSD9700 thermal switch?

This switch uses a bimetallic disc mechanism. At 145°C, the disc snaps to physically open the normally closed contacts, cutting power. It is a one-time-use, non-resettable device. After activation, it must be replaced to restore circuit protection.

What are the electrical ratings and compatible current types for this switch?

The switch is rated for 10 Amps at 250 Volts. It is suitable for both AC and DC circuits within these limits. Ensure your operating current does not exceed 10A to maintain reliable contact operation and avoid premature failure.

How should I install and wire the KSD9700/BK05-BB1D thermal switch?

Mount the metallic sensing tip directly onto or in close thermal contact with the component you wish to protect (e.g., motor winding, transformer core). Connect the two 7cm lead wires in series with the load or coil of the device being protected. The switch is normally closed, so the circuit will be complete until the temperature threshold is reached.

Package Includes

  • 1 x KSD9700/BK05-BB1D Metallic Shell Temperature Control Switch (145C NC)

Additional Information

Weight 0.03 kg
Dimensions 9 × 7 × 1 cm