Why Circuit Breakers DON'T Protect People (electric shocks)

:_Hazard: This free video took weeks to make! if it helped you and you'd like to thank or support Paul's efforts, link below: PayPal: www.paypal.me/TheEngineerinMindset Patreon: www.patreon.com/theengineeringmindset Channel membership: youtube.com/channel/UCk0fGHsCEzGig-rSzkfCjMw/join

The fact that you replied to my comment from 3 years ago and gave a link to this video was a nice gesture. I appreciate it

This is a gold standard for showing how breakers work. Very pleased with that

As an electrical engineer I have repeatedly attempted to explain circuit breaker operation and curves to technicians and electricians. No matter how extensive (or simplistic) I make my explanation it ends up with them offering up a sceptical look and them just accepting the answer without really gaining an understanding. This is an excellent video; I shall share this as the teaching video for breakers. Thanks so much for putting the effort in to creating it.

I'm loving this more live-action kind of videos

This is about the best video explaining how a MCB works. Well done.

They’re not meant to protect people, they’re meant to protect circuits. That’s why they’re called “circuit breakers” and not “people protectors”.

@13:00 good to add that the arc chamber is "up" aka away from gravity. The arc travels up as heat rises due to gravity. If you install breakers upside down you can actually get good arcs to melt internals instead. It's a fun exercise lol awesome video as always

Dude, the transitions are so freaking mind boggling! Great Job Paul!

Those circuit-breaker graphs are great! I learned a lot from this.

This was easily the best video I've ever seen on this topic in my whole life. Top tier quality right here

A clear, concise explanation of these magical devices. Awesome, & many thanks for your work. 👍

I'm glad you said qualified and competent at 4:20, because I've seen a lot of people who are competent who think they're qualified, and people who are qualified but aren't quite competent 😂

The title is a bit misleading. True, MCBs do not protect people from fatal electric shocks. However, they do protect people from electrical fires due to overloads and, statistically speaking, electrical fires have been a much killer of people than electric shocks (particularly in the USA I should add, partly because of the way they build houses). To say that it is just there to protect property is simply not the case. Also, some MCBs are twin pole, although that's more an industrial and European domestic thing (at least in some countries). However, excellent job at explaining how MCBs work, and especially the dual-mode switching and why it's done that way. I note, there is still no mention of RCBOs. Those dual RCD consumer units are, thankfully, rapidly being confined to history and many electricians will no longer quote for split RCD CUs, and I'm a bit surprised that the regulations still allow them. Of course, then we come onto a far more contentious point, which as AFDDs.

bro have one of the best engineering channels i have learnt a lot from you despite being a mechanical engineer myself about electrical as i also had a specializing in automation

Utterly brilliant description - thanks so much for taking the time to put this together!

Its wild how much engineering and thoughts have gone into these circut breakers. Well explained, easy to digest.

Love the new format and the face behind the hard work! Thank you Paul for sharing the knowledge with the world, I've learnt so much from your videos!

The clearest and simplest demonstration and explanation of how this works. Excellent work!

Phenomenal video. I thought I understood breakers, but I never once looked at the trip charts nor had I noticed the Arc chamber. Thank you for this!