What is an MCB, and How Do They Work? Discover how Miniature Circuit Breakers (MCBs) work to protect your electrical circuits from over-current caused by overload or short circuits. This video is part of a circuit protection series in association with Schneider Electric. Register for the FREE training module as part of your ongoing CPD ============================= http://hub.efixx.co.uk/SE-cprotection ============================== | EFIXX