
Episode 9 - How Breakers Work & What's Inside A Breaker
About this episode
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.
Want to learn more about becoming an electrician or mastering the craft? Visit ElectricianU.com for courses, resources, and everything you need to succeed!
Get every episode summarized
Each time Electrician U publishes, we email you a written briefing from the transcript — the topics, who appeared, and any specific claims, with the ad reads skipped.
Email me new episodesFree for 3 shows. No card needed.
Hosts & guests
No transcript yet
This episode has not been transcribed. Request it and it moves to the front of the queue.
More episodes
More from Electrician U

Care About Your Impact
Electrician U

Electricians QUIT Trashing Each Other and Build Up the Trade
Electrician U

Big Changes Coming to Electrical Codes in 2026!
Electrician U

Tools, Training, and Real Change
Electrician U