3 Way Electrical Connection Diagram. 3 way switch wiring diagram nm cable. 3 way switch wiring diagram depicting all wires in the ceiling junction box.
Three way switching schematic wiring diagram the circuit consists of a two way switch at each end top and bottom switches in fig 2 and an intermediate switch in the middle. The black wire going to the load will always connect to the common screw on the 2nd switch in the circuit. Notice that the wire connected to the com terminals is looped straight through.
Wiring lighting fixtures way switch diagram power into light pdf 75kb find this pin and more on gardening by robert ray sackett.
By looking at the moving 3 way switch above the hot black wire coming from the power source will always attach to the common screw on the 1st switch in the circuit. This 3 way light switch diagram shows connections when the power comes into the first switch on to the second switch and then on to two or more lights switched by the 3 way circuit. At each switch in the above 3 way switch wiring diagram the black wire gets connected to the common copper or black screw. The electricity source is connected to the light fixture first.