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Light switch without neutral


drmark12pa

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I'm trying to figure out a solution to installing a C4 light switch to light switch I have in my utility room that does not have a neutral.  House was built in 2001 before neutral was apparently required.  I have a black, white, and green wire but that's it.  I talked to my electrician friend said we might have to drop a neutral into the light switch gang box but that is a pain.  I was trying to use an older C4 switch I had laying around but no success.  Is there a newer C4 switch that would work without running an additional neutral?

light switch.jpeg

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Please note 2 things:

  • Control4 *dimmers* can be powered switch leg.  Control4 *switches* cannot.
  • Switch leg power only works if you have load types that allow for a trickle current to run through the load, even when the load is off.  Some LED (and CF) lighting will flicker or actually be on enough to show light, when the load is 'off', since the dimmer has to run some power through the load to power it's electronics.

RyanE

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Hahah well I don't want to burn the house down to save the effort in running an additional neutral wire.  I'm trying to remember if I've done this on another switch in my house previously which I may have but it's been several years since I installed my original majority of C4 switches

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21 hours ago, drmark12pa said:

Tried the workaround as noted above... The light would turn on but not turn off and it appears the switch almost "resets" itself.  So I'm back to running a neutral....

Yes, as posted above and by others, *switches* will not work switch-leg, since when you switch the load off with a relay, you then don't have the load to run power through for the electronics of the switch.

RyanE

 

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  • 9 months later...
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