1 Light 4 Switch Connection Wiring Diagram 1
diagram illustrates wiring for a 4 way circuit with the electrical source at the light fixture and the switches coming after. Two-wire cable is run from the light to SW1 and 3-wire cable runs between the three switches. The source neutral wire is connected directly to the light fixture and the hot is spliced to the white cable wire running to SW1. At SW1 it's spliced to the white wire running to the 4 way switch box where it's spliced to the white wire running to common terminal on SW2. The white wire is marked with black at each splice to identify it as hot.
At SW1, the common terminal is connected to the black wire running to the light fixture hot terminal. The black and red wires running between the switches are used to connect the travelers on each switch.Take note that the traveler wires from SW1 are connected to the T1 pair on the 4 way switch and the travelers going to SW2 are connected to the T2 pair. Each pair of traveler terminals on the 4 way must be connected to only one 3 way switch. Don't mix up the pairs or the circuit will not work properly.
diagram illustrates wiring for a 4 way circuit with the electrical source at the light fixture and the switches coming after. Two-wire cable is run from the light to SW1 and 3-wire cable runs between the three switches. The source neutral wire is connected directly to the light fixture and the hot is spliced to the white cable wire running to SW1. At SW1 it's spliced to the white wire running to the 4 way switch box where it's spliced to the white wire running to common terminal on SW2. The white wire is marked with black at each splice to identify it as hot.
At SW1, the common terminal is connected to the black wire running to the light fixture hot terminal. The black and red wires running between the switches are used to connect the travelers on each switch.Take note that the traveler wires from SW1 are connected to the T1 pair on the 4 way switch and the travelers going to SW2 are connected to the T2 pair. Each pair of traveler terminals on the 4 way must be connected to only one 3 way switch. Don't mix up the pairs or the circuit will not work properly.
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