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What does MCB stand for?

MCB stands for Main Circuit Breaker

This definition appears frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

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Other Resources:
We have 201 other meanings of MCB in our Acronym Attic

Samples in periodicals archive:

The alarms are hard-wired, so my first stop was the basement, where I switched the main circuit breaker to "off.