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Zinsco would remain with copper in both their panels and breakers until the third major copper shortage in the early 1960s, when they would switch to an aluminum bus. In 1963, Zinsco introduced the R-38 twin breaker, which was the only twin circuit breaker that also made contact on both bus-bars for 240 volts in a single breaker space.
Angie's List and NBC Bay Area both highlighted an October 2002 ruling in a New Jersey Superior Court, which found that FPE (Federal Pacific Electric), the manufacturer of the Stab-Lok breakers and panels, "knowingly and purposefully [sic] distributed circuit breakers which were not tested to meet UL standards as indicated on their label".
The company, in its earliest form as Federal Electric, a lighted sign company, was founded in 1901. It later made home and kitchen appliances, neon signs, police sirens, and circuit-breakers. Everything but circuit-breakers had been spun off or sold off to other companies by the 1940s, and the name was changed to Federal Pacific Electric.
A circuit breaker is an electrical safety device designed to protect an electrical circuit from damage caused by current in excess of that which the equipment can safely carry (overcurrent). Its basic function is to interrupt current flow to protect equipment and to prevent fire.
He was succeeded by his son-in-law, Leo Kuhlman who continued as president until 1981. The company was apparently successful during this period with employment reaching 300 during the 1950s. Products included breaker boxes, fuses, wiring ducts, power outlets and other electrical devices. [2]
Crouse-Hinds Electric Company, a manufacturer of high grade electrical specialties, was established in 1897 in Syracuse, New York.They later shortened their name to Crouse-Hinds Company and beginning in the early 1920s specialized in the manufacture of traffic signals, controllers and accessories.