3Way Switch. Definition: Allows you to control a light or other device from two different locations. Appearance: Has three screw terminals: two "traveler" terminals 3Way Switches. How to Wire a 3-Way Switch - Wire-by-Wire Diagrams for 3 Common Scenarios. Top Homeowner. 35.5K subscribers. Subscribed. 233. Share. 13K views 1 year ago 1305. Apr 5, 2013. #3. What you need is 2 single pole double throw switches (not ones with center off) When wiring the common of the first switch goes to the power source. The common of the second switch goes to the load. That leaves the 2 "travelers", that the 2 left over terminals on each switch.You wire one traveler from 1 switch to the 41 Wiring Step 1: Identifying and Preparing the Power Source. 4.2 Wiring Step 2: Installing the First 3-Way Switch. 4.3 Wiring Step 3: Extending the Wiring with 14-2 Romex. 4.4 Wiring Step 4: Installing the Second 3-Way Switch. 5 Testing and Troubleshooting: Ensuring Proper Functionality. 6 Conclusion. TheFollowing links will assist you with your electrical question: 3 Way Switch Diagram. electrical circuit. Electric Circuit Listing. The size of the home electrical service panel is designed by calculating the square footage of the home and factoring in the code requirements for the electrical circuits that are required. electrical wire. Thewiring diagram for a 3 gang 2 way switch will usually include some symbols that represent the various components. This can include symbols for the power source, which can be either AC or DC, as well as symbols for the two switches and the load. The diagram will also show how the wires should be connected to the switches Tobegin, you will need to identify the wiring configuration of your circuit and then create a wiring diagram. It is important to note that all wiring needs to comply with the relevant regulations of your country. In the UK, you must adhere to the Electrical Safety Council (ESC) guidelines. How To Wire A 3 Way Switch Wiring Diagram Dengarden. FourWires. Inside each box you should discover four wires that connect to each 3-way switch. One wire at one of the switches is the continuous hot wire that is getting electricity from your circuit breaker panel. At the other switch box there's a wire that goes to the chandelier. At each switch box you now have three remaining wires. Howto Wire 3-Way Switches (with Examples) 3 Way Switch Wiring Diagrams. 3-Way Switch Wiring Diagram, NM Cable. 3-Way Switch Wiring Diagram 3way switches have 3 screws + ground. A switch with 4 screws + ground is the wrong switch. If it is a "4-way switch" (2 brass 2 black), by good fortune, you can wire it exactly the same way - 2 travelers on brass and third wire on one of the black screws. Normally these things matter, but it happens to work out with 4-ways that it doesn't LTVB.