Wiring hook-up for 3-way Legrand Occupancy Sensor Switch


Old 03-10-19, 03:28 PM
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Wiring hook-up for 3-way Legrand Occupancy Sensor Switch

Installing occupancy sensor in laundry room that has two mechanical switches and a ceiling light.

As I removed the old switch, I marked the black wire connected to the terminal marked "Common."
The box has a bare ground wire, two black wires and a red wire.
The Legrand sensor has a black, red, yellow and green ground wire.
I connected the "Hot" black to the Legrand black, the red Legrand to the red wire from the box, the yellow Legrand to the other black wire from the box, and the grounds together.

The sensor does not work, but a hallway light on the same CB works.

Can anyone help me?
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Old 03-10-19, 03:48 PM
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Did you make sure when you connected to the common/black wire that it was live all the time ?
It may be the load line out to the light.
A model number or link to that switch would be helpful.,
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