I live in a 12 unit complex and have a question regarding the main electrical circuit breaker box located outside the apartment complex.
Inside all apartments and most homes, there is an electrical panel box which has switches, levers or for older places, cartridges that each control the power, oven, hot water and so on.
I wanted to know with the main circuit breaker located on the outside of my apartment complex, granted that these apartments were made in the 1970’s. Irrespective, as I observed the main circuit breaker box on the outside of the apartment complex, I noticed a row of 12 or so cartridges next to one another. I wanted to know, could the electrical power to a single apartment be turned off from the main circuit breaker box located outside the apartment complex if one of these cartridges are removed?
Or better put, is it possible to turn the power off to a single apartment from the main circuit breaker box which would override the ability of the electrical panel located within that apartment?
The reason I bring this up is because I do remember an electrician knocking on my door saying that the power is going to be turned off for a few hours, how was he able to disable power without entering my apartment, did he simply remove the cartridge from the main circuit breaker located on the outside of the apartment complex?
Thank you for taking the time to read this, much appreciated. Look forward to hearing from you all.