Random Thoughts.....What Are You Thinking?

I didn't miss it, it's besides the point as the term you used isn't the correct one for what you were referencing in the first place.

You're being obtuse at this point just to argue, instead of just admitting that you used the wrong term.

The reason it's the wrong term is because outside of your home an arrangement of parts is used to provide and regulate power from the power plant to the sub stations, to the neighborhoods (power box in the US) and then to the individual buildings or groups, but buildings usually have their own meter (where the power also comes in).

Obviously there's other complications to this, especially in multi tenant buildings with submetering and the like, but hey.

Circuit breakers are almost always a term referencing the devices in your fuse box, while there are ones that exist outside of that, most wouldn't be able to distinguish them from the other electronic equipment used to regulate power.

Somebody probably just knocked out your transformer, or a higher up transformer which both sets were branched off.

tl;dr the word you were looking for is transformer, and the only "circuit breaker" having to deal with residential buildings is way too small to just have one for a whole building.