Recommended
Inside a 125A DC circuit breaker. Unexpected arc quenching feature.
Why people recommend it
Big Clive shows why a DC arc keeps burning where an AC arc dies at the zero crossing, explaining why DC breakers need magnets and arc chutes.
Watch for: Relevant to anyone switching DC at higher voltages
In their words
For a bonus, here is a teardown from famed Youtuber Big Clive.
Spehro 'speff' Pefhany on electronics.stackexchange.com, Nov 2024. CC BY-SA.