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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".
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.
Al's Auto Supply – Chain that operated in Washington, California, Idaho, Oregon, Nevada and Alaska; purchased by CSK Auto.Founded by Abe "Al" Wexler in Everett, Washington in the late 1950s; [1] [2] sold 15 store chain to Paccar in 1987; [3] Paccar sold chain (along with Grand Auto) in 1999 to CSK Auto which eventually rebranded stores as Schucks.
Ordnance crest "WHAT'S IN A NAME" - military education about SNL. This is a historic (index) list of United States Army weapons and materiel, by their Standard Nomenclature List (SNL) group and individual designations — an alpha-numeric nomenclature system used in the United States Army Ordnance Corps Supply Catalogues used from about 1930 to about 1958.
In that era of patch panels and small numbers of high wattage dimmers, Kliegl Brothers offered its "Safpatch" patch panels, and "Rotolector" rotary power switches, both developed by Herbert Kliegl. Both products interlocked the electrical contacts with a circuit breaker, preventing arcs while switching or patching.
Modern electrical codes generally do not require a neutral fuse. Instead, they explicitly forbid configurations that might break continuity of the neutral conductor, unless all associated hot conductors are also simultaneously disconnected (for example, by using ganged or "tied" circuit breakers).