what's inside a big breaker?.....
18:14
Circuit Breakers - How they Work, What's Inside
12:39
scrapping power relays for copper and silver contactors....
10:19
Inside a 125A DC circuit breaker. Unexpected arc quenching feature.
13:06
Scrapping Heavy Copper Wire...prt2
8:16
Silver recovery from silver plated contact, refining full process. 1000g #silver #gold #refining
22:18
What's Inside This Big Circuit Breaker?
12:38
Cleaning Acr's from a Big A/C Unit...+Copper...
10:23