Identifying Correct Neutral


Old 08-15-20, 03:43 PM
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Identifying Correct Neutral

I am replacing a light switch wired as a switch loop with a digital timer that requires a neutral. This duplex box also has another switch which it is wired through another circuit. There are several bundles of white neutrals in the box. I assume I should be using the neutral associated with this circuit? How do I identify the correct neutral? Or does it not matter?

Thanks in advance.
Old 08-15-20, 04:50 PM
Join Date: Sep 2002
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Yes you should use a neutral from the same circuit. Likely since it is a switch loop the neutral you wan it not there.
The only way to know is turn off the light circuit and check all the hot wires in the switch box. If any them are off they are on the same circuit. The white wire from the same cable will be the correct one to use.

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