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3-way Duplex Switch Wiring Diagram

3-Way Duplex Switches

A 3-way duplex switch contains two 3-way switches on one body. Two of the common terminals are connected together with a removable metal tab. These terminals are usually connected to line voltage and can be black or bronze color depending on the manufacturer. This tab is removed to isolate the tabs from each other.

3-Way Duplex Switch Diagrams

Metal tab connects the two common terminals together.

Arrow left

Common terminals black or bronze color.

Metal tab removed to isolate the common terminals.

Arrow left Arrow left down 3-way Duplex Switch 3-way Duplex Switch No Tab

Duplex 3-way switch with conventional 3-way switches

Duplex switch common terminals connect to one line. When duplex switch metal tab is removed, each common terminal connect can connect to a different line.

Traveler terminals

Traveler terminals

Ceiling Fan 3-way Duplex Switch Wiring Diagram Arrow Right

Ceiling fan diagram using duplex and conventional 3-way switches

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