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A 2 Way Switch Wiring Diagram with Power Feed from the Switch light The power source comes from the fixture and then connects to the power terminal. You will see that there is a hot wire that is then spliced through a switch and that then goes to the hot terminal of the light. Where, 0 represents the OFF condition and 1 represents the ON condition. How to Connect 2-way Switch Wiring using Three wire control. This is the new method to make a 2-way switching connection as it is slightly different from the two wire control method. This method is commonly used now days as it is efficient than the Two Wire control system. In the diagram above, the incoming hot wire attaches to the first switch’s common dark-colored terminal. The two hot wires of three-wire cable connect to a pair of brass-colored traveler terminals on each switch. The fixture’s hot wire connects to the second switch’s common terminal. Single gang 2 way light switch 2 gang 1 way light switch 2 gang 2 way light switch 3 gang 1 way light switch 3 gang 2 way light switch 1 gang intermediate light switch 2 gang intermediate light switch 3 gang intermediate light switch 5 Amp 4 Terminal Junction Box Ceiling rose Lighting Circuits. Basic multi-point radial lighting circuit. Wiring a two way switch Two way switching allows you to control a light from two locations. This is very useful in a number places, particularly hallways and stairs To switch from two locations you'll need 2 two way switches and wire them together in a particular way. A two way switch has 3 terminals. A common(C), L1 and L2. 3 Way Switched Outlet Wiring. In this diagram, two 3 way switches control a wall receptacle outlet that may be used to control a lamp from two entrances to a room. This circuit is wired the same way as the 3 way lights at this link. Three-wire cable runs between the switches and the outlet. The cable consist of a black wire, a white wire and a bare copper wire. Black wire = Power or Hot wire. White wire = Neutral. Bare copper = Ground. When wiring a 2-way switch circuit, all we want to do is to control the black wire (hot wire) to turn on and off the load. Fig 2 Two way switching using a 3 wire control (shown in the old cable colours) NOTE The blue and yellow wires in cable ‘D’ and the black wire in cable ‘C’ are switched lives and thus should be marked with red sheathing at each end as shown. Key to types of switch. 2 way light switch with power feed via switch. 2 way light switch with power feed via light. 2 way light switch with power feed via switch (two lights) 3-way light switch with power feed via the light switch. Three way light switch with power feed via the light.