Miniature Circuit Breaker (MCB)

Residential Surge Protection Devices


Miniature Circuit Breaker (MCB) is a protection device that is designed to break a circuit open. It is typically used for low voltage applications (<480V) to protect loads and equipment during fault conditions such as overload or short circuit. They monitor phase and neutral currents and act upon detection of over-currents or faults. This can also be controlled automatically upon receiving a signal from an e-meter. TI reference designs and semiconductors:

  • Showcase integrating auto-reclosure function with high efficiency motor drivers, magnetic sensors for position feedback, and highlight protection features for motors
  • Showcase methods for data acquisition and enabling wireless for smarter MCB
  • Showcase architectures for powering from single or three-phase AC supply

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