Knife Switch
Production date
Circa 1925
Object detail
Accession number
1982.642.2
Production period
Description
A high – low voltage double pole, double throw knife switch used for 3 or 4 way switch circuits. It is spring loaded for quick release, to prevent arcing. Black ceramic rectangular base with 4 copper slots projecting outwards. Handle is wooden, painted black.
Media/Materials
Other name
manual circuit breaker
Credit Line
Circa 1925. Knife Switch, 1982.642.2. The Museum of Transport and Technology (MOTAT).
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