Metro Plastics Technologies: I am being told by my electrical contractor that 240 and 480 volt receptacles require a disconnect switch that removes the power from the female receptacle so no one can disconnect the equipment ( mold temp controllers, dryers, grinders etc, from the power source unless they are wearing protective gear. I do not see this any plants I visit. The reference code is NFPA70E. Has anyone had experience with this and is it necessary.
Lindsey Hahn
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