SKU: SENS-3659
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Generic KSD9700/BK05-BB1D Metallic Shell Temperature Control Switch - 5A 250V, 115°C NO

₹15.00 (Inclusive of all taxes)
Out of Stock

The KSD9700/BK05-BB1D is a metallic-shell, snap-action thermal switch rated for 5A at 250V AC/DC, featuring a normally open (NO) contact configuration that closes upon reaching its 115°C setpoint. This compact protector is designed for direct integration into electrical circuits to provide reliable over-temperature cutoff in appliances, power supplies, and industrial control systems.

Features

  • Metallic shell construction for robust thermal conduction and durability.
  • Normally open (NO) contact configuration closes at 115°C setpoint.
  • Rated for 5A current at 250V AC/DC voltage.
  • Compact form factor with 7cm lead wires for easy installation.
  • Snap-action bimetallic disc ensures precise and reliable switching.

Out of stock

Description

The KSD9700/BK05-BB1D is a bimetallic disc thermal switch housed in a metallic shell for optimal heat transfer and mechanical protection. Its operating principle relies on the differential expansion of two bonded metals, which causes a sudden snap-action to close the normally open electrical contacts once the calibrated temperature threshold of 115°C is reached. This action completes the circuit, enabling it to activate alarms, cut power, or trigger cooling systems.

Designed for direct series connection in a live circuit, this switch provides a cost-effective and maintenance-free solution for over-temperature protection. Its sealed metallic housing offers resistance to environmental contaminants and ensures long-term stability across a wide range of industrial and commercial applications where reliable thermal management is critical.

Key Features

  • Bimetallic snap-action mechanism for precise temperature actuation.
  • Metallic housing ensures excellent thermal conductivity and mechanical strength.
  • Normally open (NO) contact design suitable for alarm or shutdown circuits.
  • Rated for 5A/250V, suitable for controlling small motors, heaters, or solenoids.
  • Pre-calibrated fixed setpoint of 115°C with a typical tolerance of ±5°C.
  • Compact dimensions (approx. 9 x 7 x 1 cm) for space-constrained installations.
  • Includes 7cm insulated lead wires for straightforward wiring.
  • Maintenance-free operation with no external power required.

Applications

  • Over-temperature protection in coffee makers, kettles, and small kitchen appliances.
  • Thermal cutoff safety in power supplies, battery chargers, and transformers.
  • Temperature monitoring and alarm activation in industrial control cabinets.
  • Motor protection in fans, pumps, and small HVAC equipment.
  • Safety interlock in soldering stations and electronic soldering irons.

Technical Specifications

Manufacturer Part NumberKSD9700/BK05-BB1D
Item TypeThermal Switch / Thermostat
Contact ConfigurationNormally Open (NO)
Setpoint Temperature115°C
Rated Voltage250V AC/DC
Rated Current5A
Housing MaterialMetallic Shell
Cable Length7 cm
Head Dimensions2 x 0.8 x 0.2 mm
Shipping Weight0.03 kg
Shipping Dimensions9 × 7 × 1 cm

Frequently Asked Questions

What is the contact configuration of this KSD9700 thermal switch?

This KSD9700/BK05-BB1D switch features a Normally Open (NO) contact configuration. The contacts are open at ambient temperature and will physically close to complete the electrical circuit once the internal bimetallic disc senses the calibrated setpoint temperature of 115°C.

What is the maximum electrical load this switch can handle?

The switch is rated for a maximum current of 5 Amperes at a voltage of up to 250 Volts AC or DC. It is designed to be connected in series with the load (e.g., a heating element or motor) to interrupt power upon over-temperature, but the load current must not exceed this 5A rating.

How do I install and wire this temperature control switch?

Install the switch by making direct thermal contact with the component or surface you wish to monitor, using thermal paste if necessary for better heat transfer. Connect its two lead wires in series with the load circuit you want to control. Ensure the metallic housing is properly grounded if required by your application's safety standards.

Is the 115°C setpoint adjustable or fixed?

The setpoint is fixed at 115°C and is not user-adjustable. It is factory-calibrated using the specific bimetallic disc geometry within the metallic shell. The actuation temperature typically has a tolerance of approximately ±3°C to ±5°C.

Package Includes

  • 1 x KSD9700/BK05-BB1D Metallic Shell Temperature Control Switch

Additional Information

Weight 0.03 kg
Dimensions 9 × 7 × 1 cm