Thinking out of the box to make mcu work with the 2 wire wiring system. In order to design a smart switch to retrofit the existing 2 wire installation its either method 1.
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Two wire light switch. In this case there will be. Use the other 6 inch wire to connect to the top terminal of the second switch if it is mounted in the same electrical box. Step 4 connect switch box 2. Connect the black wire coming from the lightbox with the black wire leading to the second switch by twisting their ends together and fastening with a third wire nut. Twist a wire cap onto the end of the pigtail. At the light it connects to the neutral terminal.
Connect the red wire leading to the second switch to the top brass screw on the right side. Connect the 2 ground wires with a fourth wire nut. Putting a rechargeable battery inside the switch to supply the power to the mcu or method 2. Enerlites 3 speed ceiling fan control and led dimmer light switch 25a single pole light fan switch 300w incandescent load no neutral wire required 17001 f3 w white 42 out of 5 stars 434 1999 19. Two wire cable runs from the combo to the light fixture and the switch output is connected to the black wire running to the fixture hot terminal. Connect it to the screw on the left side of the switch.
The method 1 is relatively easy. Take the white wire leading to the second box and mark its end black too. The source neutral wire is spliced to the neutral on the receptacle half of the combo device and to the white cable wire running to the light.
Gallery of Two Wire Light Switch
