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Where multiple disconnecting means are used and parts of the controllers remain energized from a source other than the one disconnected, a warning sign shall be mounted on or next to the disconnecting means. The sign shall be clearly legible and shall read as follows:
WARNING
PARTS OF THE CONTROLLER ARE NOT DE-ENERGIZED BY THIS SWITCH.
The warning sign(s) or label(s) shall comply with 110.21(B).

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430.113 Equipment for General Use, Energy From More Than One Source
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