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Re: Multiple neutrals under same lug
From the NEC.
- 408.21 Grounded Conductor Terminations.
- - Each grounded conductor shall terminate within the panelboard in an individual terminal that is not also used for another conductor.
- - - Exception: Grounded conductors of circuits with parallel conductors shall be permitted to terminate in a single terminal if the terminal is identified for connection of more than one conductor.
But that Exception gets into what was posted on another thread - the smallest conductors allowed to be paralleled are 1/0. So, that Exception does not apply to your standard panelboard with neutral terminals sized 14-1 (although none probably are sized beyond 14-8 for the typical terminal, not counting the main neutral line terminal, which is still only rated for one conductor, so the Exception would not apply to it either.
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