Need help wiring a programmable light switch

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Old 12-19-17, 10:30 AM
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Need help wiring a programmable light switch

We've got an outside light at our store, and I bought this programmable switch so that the light would be on from 5pm to midnight 7 days a week. Trouble is, I can't figure out how to wire it. I've done many wiring projects, but I don't know what to make of this diagram because the existing switch is wired as a leg(think that's what you call it when the white and black wire are used on the two screws of a single pole switch.

Take a look.



Is this doable?
 
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Old 12-19-17, 10:50 AM
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What you are showing is indeed a switch loop and all you have there is always live hot and switched hot back to the light. There is no neutral. You'd need to replace that with a three wire cable to bring down neutral/.
 
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Old 12-19-17, 11:19 AM
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Dangit! Alright, well thank you for that clarification, and thank you.

Do you know of any timer switch which I might be able to use for this application? It seems like without a neutral, this is a no-go.
 
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Old 12-19-17, 11:34 AM
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The Intermatic ST01 is good "no neutral" timer. It uses a lithium battery to operate.
intermatic/timer-controls/electronic-in-wall-timers/st01
homedepot/Intermatic-15-Amp-Heavy-Duty-Astro-In-Wall-Digital-Timer-ST01
 
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