3 And 4 Way Switch Wiring Diagrams. A 4 way switch has five terminals. Three way switching schematic wiring diagram.
Each pair of traveler terminals should be wired to the traveler wires from one of the 3 way switches in the circuit. Before we get to wiring diagrams here is how the 3 way switch terminals are color coded. The same wire goes to the black terminal of the second bulb and you are using more bulbs connect it to them as well.
3 and 4 way switch wiring diagram pdf.
Each pair of traveler terminals should be wired to the traveler wires from one of the 3 way switches in the circuit. Follow the switch manufacturers instructions and wiring diagram as the connections on the switch vary by manufacturer. Black for live or hot wire. A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch.