CBI Electric is a major manufacturer of protection and electrical distribution components. Their parent companies Heinemann Electric and Low voltage started in 1949. In 1986, the company merged with Fuchs Electrical Industries became known as Circuit Breaker Industries. Most assembly is done in-house giving CBI great control over the quality of their products.
The company is a world leader in the design of hydraulic-magnetic circuit breaker technology but its famousness doesn’t come from this technology. It also uses thermal-magnetic and electronic sensing operating principles in some of its products.