jackknife switch

Isaac Kremer/ November 23, 2025/ / 0 comments

An electric switch with a copper blade with a handle on one end and a pivot on the other; when the blade is in the closed position, it is held by spring clips that complete the circuit; typically used for main circuits. (Bucher, 1996)

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IsaacKremer.com is the personal website of Isaac Kremer, MSARP, a nationally recognized leader in the Main Street Approach to commercial district revitalization with over 25 years of experience. Kremer, New Jersey's first certified Main Street America Revitalization Professional (MSARP), has served as founding executive director for organizations like Experience Princeton and the Metuchen Downtown Alliance, which won a Great American Main Street Award under his leadership. He recently became director of the Royal Oak Downtown Development Authority in Michigan.

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