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First formed in 1903 as the McBride Manufacturing Company, they subsequently changed their name to the Detroit Fuse and Manufacturing Company with their logo being a "D" (for Detroit) enclosed in a square. In 1991, they were purchased by the French company Schneider Electric and they continue to sell into the commercial, industrial, and residential markets.

Introduced in 1955, their "QO" line of 3/4-inch Circuit Breaker s may be their best-known product line, used in many homes in North America.

Their principal competitors include:


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