SKU: SENS-3631
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Generic KSD9700/BK05-BB1D Metallic Shell Temperature Control Switch - 5A 250V, 60°C Normally Open

₹67.00 (Inclusive of all taxes)
Out of Stock

The KSD9700/BK05-BB1D is a metallic-shell, normally-open (NO) thermal switch rated for 5A at 250V AC/DC, with a fixed 60°C trip point. It provides reliable over-temperature protection for electrical appliances, power supplies, and motor windings by automatically breaking the circuit upon reaching its calibrated setpoint.

Features

  • Fixed 60°C normally-open (NO) bimetallic snap-action thermal switch
  • Rated for 5A continuous current at 250V AC/DC
  • Durable metallic shell construction for robust thermal conduction and mechanical protection
  • SPST (Single-Pole, Single-Throw) switching action with manual reset
  • Compact design with 7cm lead wires for easy integration into electrical assemblies

Out of stock

Description

The KSD9700/BK05-BB1D is a bimetallic disc thermostat housed in a metallic shell for effective heat transfer and durability. Its normally-open contacts close when the ambient temperature is below the 60°C setpoint and snap open to interrupt the circuit when the temperature rises to the trip point, providing fail-safe over-temperature protection.

This thermal protector is designed for direct series connection with the load or heater circuit. The metallic housing ensures rapid thermal response and is suitable for applications requiring a robust, fixed-temperature cutoff. It is a critical safety component in preventing thermal runaway in enclosed electrical systems.

Key Features

  • Bimetallic snap-disc actuator for precise, repeatable trip point at 60°C
  • Metallic shell ensures excellent thermal conductivity and mechanical strength
  • SPST normally-open (NO) contact configuration for series circuit protection
  • Rated for 5A @ 250V AC/DC, suitable for a wide range of electrical loads
  • Compact form factor with integrated 7cm insulated lead wires for simplified wiring
  • Manual reset operation requires temperature to cool below reset point for circuit closure
  • High-reliability design for long-term operation in appliance and industrial control systems
  • Optimized performance-to-cost ratio for mass-produced electrical safety applications

Applications

  • Over-temperature protection in small power supplies, battery chargers, and transformers
  • Thermal cutoff for motor windings in fans, pumps, and small appliances
  • Safety interlock in coffee makers, water heaters, and other heating elements
  • Temperature monitoring and control in lighting fixtures and LED drivers
  • Preventive safety device in industrial control cabinets and electrical enclosures

Technical Specifications

Manufacturer Part NumberKSD9700/BK05-BB1D
Switch TypeThermal Protector (Bimetallic)
Contact ConfigurationSPST, Normally Open (NO)
Setpoint / Trip Temperature60°C
Rated Voltage250V AC/DC
Rated Current5A
Housing MaterialMetallic Shell
Cable / Lead Length7 cm
Head Dimensions (approx.)2.0 x 0.8 x 0.2 mm
Operating PrincipleBimetallic Snap Disc
Reset TypeManual (Cool-Down)

Frequently Asked Questions

What is the trip temperature and reset behavior of this thermal switch?

This KSD9700 switch has a fixed trip point of 60°C. It is a normally-open (NO) bimetallic switch, meaning the contacts are open at temperatures above 60°C, breaking the circuit. The switch will automatically reset and close the contacts once the temperature cools sufficiently below the trip point, typically requiring a differential of 5-10°C.

What is the maximum electrical rating for this switch?

The switch is rated for a maximum continuous current of 5 Amperes at up to 250 Volts, either AC or DC. This rating is suitable for protecting many small to medium power loads like motors, heaters, or power supplies. Do not exceed these ratings to ensure safe operation and prevent contact welding or failure.

How do I install and wire this metallic shell thermal switch?

Install the switch in direct thermal contact with the component or surface you wish to monitor (e.g., motor housing, heatsink). Connect its two lead wires in series with the load or power line you want to control. The metallic shell must be securely mounted for optimal heat transfer. Ensure wiring complies with local electrical codes for the voltage and current used.

Is this switch suitable for DC voltage applications?

Yes, the 250V rating applies to both AC and DC voltage. The 5A current rating is consistent for both AC and DC loads. For DC inductive loads (like motors or solenoids), ensure the switch's breaking capacity is adequate, as arc suppression can be more challenging with DC compared to AC.

Package Includes

  • 1 x KSD9700/BK05-BB1D Metallic Shell Temperature Control Switch (5A, 250V, 60°C NO)

Additional Information

Weight 0.03 kg
Dimensions 9 × 7 × 1 cm