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limit switch
noun
- a switch that automatically cuts off current to an electric motor when an object moved by it, as an elevator, has passed a given point.
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Word History and Origins
Origin of limit switch1
First recorded in 1925–30
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Example Sentences
Meanwhile the Welsh Conservatives want the health budget ring-fenced and have criticised spending on "vanity projects" like the 20mph speed limit switch, and Senedd reform.
From BBC
If our booming economy has a limit switch, it is congestion.
From Seattle Times
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