Episode 9 – What’s Inside A Breaker (How Do Electrical Breakers Work?)

This episode is all about breakers, from the outside-in.  I cover the differences between single-pole, two-pole, and 3-pole breakers. I talk about how a breaker is a simple spring-held mechanical switch that operates by an internal electromagnet.

Finally I take a Square D single-pole breaker apart and show you how a breaker trips, and how the mechanics of the inside of a breaker works.

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**Disclaimer – These videos are for training purposes alone, all work done on electrical systems should be done by a licensed and insured electrical contractor.  If you are not an electrician, do not attempt any of the work you are seeing in these videos.**



Brandon Burleson says

Thanks for explaining the how and why things work, not just it’s place and purpose. Best apprentice oriented content on the web!

Dustin Stelzer says

Wow man, thanks for the kind words. Glad you’re getting some value from all of this!

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