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First of all, congratulations for your question. Here is my question: I want to change a switch that has 3 son (1 red and 2 brown) by a delayed switch 2 son without neutral 1000 W Céliane - LEGRAND what to do with the 3rd wire?

At the description of the threads (1 red and 2 chestnut), your light switch is actually one of the two switches a up-and-down. Replacement by a timed switch is possible, but your back and forth will not work anymore. It would be better, in this case, that you install a timer. You can also install a motion and presence detection switch. In any case, make sure to turn off the power supply of the circuit in question on the board of the installation before any intervention.

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