1 Light 4 Switch Connection Wiring Diagram
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.
1 Light 4 Switch Connection Wiring Diagram
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.
Great lesson. I 've thinking how to make ayi installation work.
ReplyDeleteThanks
that will not work. nif sw1 o2 turn it off 3 or 4 will not turn it on. and vice versa. you need a three way at each end and 4 ways in the middle
ReplyDeleteExactly... This is plain wrong!
DeleteGood mind thank you so much
ReplyDeletecompletely wrong. when more than two switches are used then all switches between the three way must be four way which flip the travelers.
ReplyDeleteYep! Draw another line between the two middle switches and call the middle ones 4-ways and it will be correct! This site gets a lot of things wrong!
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