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How To Make an Electronic Circuit Breaker

[Sekhohub.online]

 Electronic Circuit Breaker


Introduction:

An electronic circuit breaker is a smart protective device that automatically disconnects the power when the load exceeds a certain limit. Unlike mechanical breakers, this one uses electronic components like transistors, 555 timer ICs, relays, and current sensors to do the job faster and more reliably.

This project is perfect for:

  • DIY electronics learners

  • Overcurrent protection in power supplies

  • Learning about relay switching and current sensing


Materials for the Project

  1. 1x 555 TIMER IC
  2. 2x BC547 TRANSISTORS
  3. 1x PUSH BUTTON
  4. 5x 1N4007 DIODES
  5. 1x LED
  6. 1x 10K VARIABLE RESISTOR
  7. 2x 1K RESISTORS
  8.  4x 10K RESISTORS
  9.  1x 0.1uF CAPACITOR
  10. 1x 47uF CAPACITOR
  11.  1x 100uF CAPACITOR
  12. 1x CURRENT TRANSFORMER
  13.  1x 12V RELAY
  14.  2x 2-PIN TERMINAL BLOCKS
  15. VERO BOARD
  16. JUMPER WIRES  

Download Circuit Diagram

How To Make an Electronic Circuit Breaker

Circuit Diagram


Conclusion

Creating your own electronic circuit breaker is both fun and educational. It teaches you about overcurrent protection, MOSFET switching, and sensor interfacing. Try this circuit and add your own tweaks to make it even smarter!


For more DIY electronics circuits and tutorials, keep visiting SekhoHub.online—Pakistan’s growing platform for electronics learners and makers.

 

 

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