addition of motion sensor to existing yard light


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Old 04-22-16, 09:05 AM
W
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addition of motion sensor to existing yard light

I want to add a motion sensor (All-Pro MS180) to an existing yard light. The power to the existing light is always on (for now) since some pull chain operated lights are part of the same circuit. If I add this sensor to operate the on/off function of the existing yard light, will the power still pass thru to the other lights?
 
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Old 04-22-16, 10:22 AM
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Sure, as long as you connect the sensor only to the wires going to the desired light. That may require installing a new junction box and running some cable, but it depends on where you want to mount the sensor, and in what sequence the existing cable runs.

Where and how were you thinking of mounting the sensor?
 
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Old 04-22-16, 10:52 AM
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adding motion sensor

The existing light appears to be at the end of the circuit run, at least as it appears by the wiring run in the garage attic

The motion sensor would be installed in the cover plate (change cover plate from one screwed outlet to two or three) for the junction box/mounting box for the current existing yard light.
 
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Old 04-22-16, 01:18 PM
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If it's at the end of the run, you're home free. All the whites get tied together. Incoming black (power in)gets removed from the fixture and goes to black of the sensor. Red from the sensor provides power to the fixture (where the incoming black used to go).

If it turns out it isn't at the end of the run, just tie all the black wires together and all the whites together (one white goes to fixture), and make sure the red goes only to the light fixture.

Good luck with your project.
 
 

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