safety switch
noun
: an electric switch completely enclosed in a metal box with an external control handle and so designed that the box cannot be opened while the switch is closed and the switch cannot be closed while the box is open
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“Safety switch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/safety%20switch. Accessed 23 Nov. 2024.
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